Station Overview Station Location
Station Number CA-SN-1 Latitude 38.352223
Station Name Rohnert Park 1.6 WNW Longitude -122.727444
County Sonoma Elevation (ft) 93



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 09 1.60 3.90 31 3.90 31 0.00 0 0 7 0 0.0 0 0
Nov 09 3.88 0.94 30 0.94 30 0.00 0 0 5 0 0.0 0 0
Dec 09 6.17 3.52 31 3.52 31 0.00 0 0 15 0 0.0 0 0
Jan 10 6.17 10.87 31 10.87 31 0.00 0 0 21 2 0.0 0 0
Feb 10 5.98 4.77 28 4.77 28 0.00 0 0 16 2 0.0 0 0
March 10 4.42 4.39 31 4.39 31 0.00 0 0 12 0 0.0 0 0
April 10 1.85 3.81 30 3.81 30 0.00 0 0 12 0 0.0 0 0
May 10 1.21 2.10 31 2.10 31 0.00 0 0 8 2 0.0 0 0
June 10 0.21 0.14 30 0.14 30 0.00 0 0 3 1 0.0 0 0
July 10 0.02 0.03 31 0.03 31 0.00 0 0 3 1 0.0 0 0
Aug 10 0.06 0.07 31 0.07 28 0.00 3 0 5 7 0.0 0 0
Sept 10 0.30 0.11 30 0.11 19 0.00 11 2 1 0 0.0 0 0
Water Year Totals: 31.87" 34.65" 365 days 34.65" 351 0.00" 14 days 2 108 days 15 days 0.0" 0 days 0 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2009 0.00
10/2/2009 0.00
10/3/2009 0.00
10/4/2009 0.00
10/5/2009 0.00
10/6/2009 0.00
10/7/2009 0.00
10/8/2009 0.00
10/9/2009 0.00
10/10/2009 0.00
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 1.91
10/14/2009 1.26
10/15/2009 0.15
10/16/2009 0.04
10/17/2009 0.00
10/18/2009 0.00
10/19/2009 0.29
10/20/2009 0.24
10/21/2009 0.00
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 0.00
10/25/2009 0.00
10/26/2009 0.00
10/27/2009 0.00
10/28/2009 0.00
10/29/2009 0.00
10/30/2009 0.00
10/31/2009 0.01
11/1/2009 0.00
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.14
11/7/2009 0.13
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 0.00
11/13/2009 0.00
11/14/2009 0.00
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.20
11/19/2009 0.00
11/20/2009 0.00
11/21/2009 0.45
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.00
11/25/2009 0.00
11/26/2009 0.00
11/27/2009 0.02
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.00
12/2/2009 0.01
12/3/2009 0.02
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 0.00
12/7/2009 0.11
12/8/2009 0.02
12/9/2009 0.00
12/10/2009 0.00
12/11/2009 0.17
12/12/2009 0.39
12/13/2009 0.96
12/14/2009 0.06
12/15/2009 0.00
12/16/2009 0.86
12/17/2009 0.01
12/18/2009 0.00
12/19/2009 0.00
12/20/2009 0.00
12/21/2009 0.11
12/22/2009 0.05
12/23/2009 0.00
12/24/2009 0.00
12/25/2009 0.00
12/26/2009 0.00
12/27/2009 0.37
12/28/2009 0.00
12/29/2009 0.00
12/30/2009 0.36
12/31/2009 0.02
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.08
1/2/2010 0.36
1/3/2010 T
1/4/2010 0.01
1/5/2010 0.00
1/6/2010 0.00
1/7/2010 0.00
1/8/2010 0.00
1/9/2010 0.02
1/10/2010 0.01
1/11/2010 T
1/12/2010 0.44
1/13/2010 0.35
1/14/2010 0.03
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.11
1/18/2010 0.66
1/19/2010 1.77
1/20/2010 1.78
1/21/2010 1.85
1/22/2010 0.66
1/23/2010 0.59
1/24/2010 0.19
1/25/2010 0.81
1/26/2010 0.79
1/27/2010 0.02
1/28/2010 0.00
1/29/2010 0.00
1/30/2010 0.32
1/31/2010 0.02
2/1/2010 0.00
2/2/2010 0.02
2/3/2010 0.08
2/4/2010 0.02
2/5/2010 1.02
2/6/2010 0.44
2/7/2010 0.32
2/8/2010 0.02
2/9/2010 0.00
2/10/2010 0.00
2/11/2010 0.00
2/12/2010 0.14
2/13/2010 0.10
2/14/2010 T
2/15/2010 T
2/16/2010 0.00
2/17/2010 0.00
2/18/2010 0.00
2/19/2010 0.00
2/20/2010 0.00
2/21/2010 0.00
2/22/2010 0.08
2/23/2010 0.01
2/24/2010 1.63
2/25/2010 0.03
2/26/2010 0.01
2/27/2010 0.82
2/28/2010 0.03
3/1/2010 0.00
3/2/2010 0.54
3/3/2010 1.18
3/4/2010 0.35
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.00
3/9/2010 0.04
3/10/2010 0.31
3/11/2010 0.00
3/12/2010 0.02
3/13/2010 0.64
3/14/2010 0.00
3/15/2010 0.00
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 0.00
3/24/2010 0.00
3/25/2010 0.20
3/26/2010 0.17
3/27/2010 0.00
3/28/2010 0.00
3/29/2010 0.13
3/30/2010 0.27
3/31/2010 0.54
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.26
4/2/2010 0.02
4/3/2010 0.54
4/4/2010 0.00
4/5/2010 0.52
4/6/2010 0.05
4/7/2010 0.00
4/8/2010 0.00
4/9/2010 0.00
4/10/2010 0.00
4/11/2010 0.27
4/12/2010 1.18
4/13/2010 0.09
4/14/2010 0.00
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 0.04
4/21/2010 0.00
4/22/2010 0.39
4/23/2010 0.00
4/24/2010 0.00
4/25/2010 0.00
4/26/2010 0.00
4/27/2010 0.34
4/28/2010 0.11
4/29/2010 0.00
4/30/2010 0.00
5/1/2010 0.00
5/2/2010 0.00
5/3/2010 0.00
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 T
5/10/2010 0.04
5/11/2010 0.17
5/12/2010 0.00
5/13/2010 0.00
5/14/2010 0.00
5/15/2010 0.00
5/16/2010 0.00
5/17/2010 T
5/18/2010 0.64
5/19/2010 0.00
5/20/2010 0.03
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.00
5/24/2010 0.00
5/25/2010 0.01
5/26/2010 0.44
5/27/2010 0.07
5/28/2010 0.70
5/29/2010 0.00
5/30/2010 0.00
5/31/2010 0.00
6/1/2010 0.00
6/2/2010 0.00
6/3/2010 T
6/4/2010 0.07
6/5/2010 0.03
6/6/2010 0.00
6/7/2010 0.00
6/8/2010 0.00
6/9/2010 0.04
6/10/2010 0.00
6/11/2010 0.00
6/12/2010 0.00
6/13/2010 0.00
6/14/2010 0.00
6/15/2010 0.00
6/16/2010 0.00
6/17/2010 0.00
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 0.00
6/22/2010 0.00
6/23/2010 0.00
6/24/2010 0.00
6/25/2010 0.00
6/26/2010 0.00
6/27/2010 0.00
6/28/2010 0.00
6/29/2010 0.00
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 0.00
7/7/2010 0.00
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.00
7/11/2010 0.00
7/12/2010 T
7/13/2010 0.00
7/14/2010 0.00
7/15/2010 0.00
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.00
7/20/2010 0.00
7/21/2010 0.00
7/22/2010 0.00
7/23/2010 0.00
7/24/2010 0.00
7/25/2010 0.00
7/26/2010 0.00
7/27/2010 0.01
7/28/2010 0.00
7/29/2010 0.01
7/30/2010 0.01
7/31/2010 0.00
8/1/2010 0.01
8/2/2010 0.01
8/3/2010 T
8/4/2010 T
8/5/2010 T
8/6/2010 0.00
8/7/2010 0.00
8/8/2010 0.00
8/9/2010 T
8/10/2010 T
8/11/2010 0.02
8/12/2010 0.00
8/13/2010 T
8/14/2010 0.00
8/15/2010 0.00
8/16/2010 0.00
8/17/2010 T
8/18/2010 0.00
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 0.02
8/22/2010 0.00
8/23/2010 0.00
8/24/2010 0.00
8/25/2010 0.00
8/26/2010 0.01
8/27/2010 0.00
8/28/2010 0.00
8/29/2010 **
8/30/2010 **
8/31/2010 **
9/1/2010 **
9/2/2010 **
9/3/2010 **
9/4/2010 **
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.00
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.00
9/17/2010 0.00
9/18/2010 0.00
9/19/2010 0.11
9/20/2010 **
9/21/2010 **
9/22/2010 **
9/23/2010 **
9/24/2010 **
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 0.00
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 9:15 AM 0.00 0.0 M M M Really windy yesterday afternoon. Cool this am.
10/2/2009 7:00 AM 0.00 0.0 M M M
10/3/2009 7:00 AM 0.00 0.0 M M M
10/4/2009 7:00 AM 0.00 0.0 M M M
10/5/2009 7:00 AM 0.00 0.0 M M M
10/6/2009 7:00 AM 0.00 0.0 M M M
10/7/2009 7:00 AM 0.00 0.0 M M M
10/8/2009 7:00 AM 0.00 0.0 M M M
10/9/2009 7:00 AM 0.00 0.0 M M M
10/10/2009 7:00 AM 0.00 0.0 M M M
10/11/2009 7:00 AM 0.00 0.0 M M M
10/12/2009 9:15 AM 0.00 0.0 M M M Overcast this am, big storm coming tonight and tomorrow.
10/13/2009 9:15 AM 1.91 M M M M Drizzly fog in am. Then turned to rain clouds. Calm no wind. Breeze picked up in afternoon. First band of light misty rain encountered while driving from Petaluma to Santa Rosa. That rain started at Rohnert Park to Santa Rosa at 4:20pm. Almost quit by time got to Santa Rosa. Then rain started about 8:15pm while driving home at about Todd Rd. Winds picked up about midnight. Dog is not liking wind and rain to go out do his business in it.
10/14/2009 9:15 AM 1.26 M M M M Very windy during storm. Creeks got really high, no flooding, RPXwy didn't close. Light breeze and some clouds now.
10/15/2009 9:15 AM 0.15 M M M M muggy though clearing yesterday, a shower or two gave additional .04" of rain during day. Woke up by cat @5:30am to a light rain. Still a light rain now.
10/16/2009 9:15 AM 0.04 M M M M Still lightly raining Thursday AM, clearer today, some fog but still warm 62 and muggy out.
10/17/2009 9:15 AM 0.00 0.0 M M M Still muggy out this am. Was muggy yesterday and last night. Can't believe am sleeping with some open windows last few nights in mid Oct. since temps are only dropping to high 50's during night. Last week we were in high 30's and low 40's at night.
10/18/2009 9:15 AM 0.00 0.0 M M M Overcast with fog and clouds this AM.
10/19/2009 9:15 AM 0.29 M M M M Still raining @ovbsrvtn tme. Started during night, hd .04 whn chkd @7:15am. Yesterday overcast and cooler. A band of showers dropped a few big drops abt. 4pm driving westbound on RPXWY by Redwood drive.
10/20/2009 9:15 AM 0.24 M M M M Very heavy drizzly fog this am.
10/21/2009 9:15 AM 0.00 0.0 M M M Foggy this morning, yesterdays fog didn't clear until almost noon.
10/22/2009 9:15 AM 0.00 0.0 M M M Lots of valley fog this am.
10/23/2009 9:15 AM 0.00 0.0 M M M Some valley fog in low areas this am.
10/24/2009 9:15 AM 0.00 0.0 M M M Clear this am, some dew on grass still.
10/25/2009 9:15 AM 0.00 0.0 M M M Dew on grass and leaves this am. Great fall weather, today looks to be even better.
10/26/2009 9:15 AM 0.00 0.0 M M M Cold this am, only 38 at 7am. By observatn time only up to 51.
10/27/2009 6:00 AM 0.00 0.0 M M M Early report this am since have to be at work in a bit. Very Cold and windy this am. Only 41 out.
10/28/2009 9:15 AM 0.00 0.0 M M M A bit warmer this am, still windy out but not as strong of gusts. Had very strong gusts on way to and from Sacramento yesterday. Strong enough to feel it hit car.
10/29/2009 9:15 AM 0.00 0.0 M M M Some light fog this am.
10/30/2009 9:15 AM 0.00 0.0 M M M Clear here but some pockets of valley fog while driving grandson to school in west Cotati.
10/31/2009 9:15 AM 0.01 M M M M Very heavy drippy coastal and valley fog this am. Light breeze that has fog dropping off trees onto fallen leaves sounding like rain.
11/1/2009 9:15 AM 0.00 0.0 M M M Fog this am, looks like valley fog with some coastal
11/2/2009 9:15 AM 0.00 0.0 M M M A bit of light valley fog this am, otherwise looks to be another great fall day. Yesterday was tank top weather.
11/3/2009 9:15 AM 0.00 0.0 M M M nice out, going to be another warm fall day, yesterday was 83.
11/4/2009 9:15 AM 0.00 0.0 M M M overcast, fog and clounds
11/5/2009 9:15 AM 0.00 0.0 M M M Overcast as a small storm comes in later today. The light wind is is blowing, tugging, and pulling off the leaves of my huge sycamore tree in backyard. It is raining leaves down. You can't even tell I raked up a small portion of leaves 2days ago. My green can only holds a tiny amount of them. Went to a great spotter training last night at the Sonoma Co. EOC
11/6/2009 9:15 AM 0.14 M M M M Light drizzly rain on and off this morning.
11/7/2009 9:15 AM 0.13 0.0 M M M Cold out this am, some light valley fog. Rain yesterday was in off and on in the morning.
11/8/2009 9:15 AM 0.00 0.0 M M M Cold and clear this am. Was out with dog @7am and only 39 out.
11/9/2009 9:15 AM 0.00 0.0 M M M Cold this morning, only 38 out when took dog out at 7:30am. Valley fog already clearing. Some valley fog was already forming at 11 last night.
11/10/2009 9:15 AM 0.00 0.0 M M M Overcast, warmer this morning, already 50 out. Didn't get any rain.
11/11/2009 9:15 AM 0.00 0.0 M M M Cooler again this am was 43 out about 7:30, up to 52 by obsvrtn tme. A bit of overcast.
11/12/2009 9:15 AM 0.00 0.0 M M M Not quite as cool this am as it has been, was 42 out at about 7:20am, up to 50 by obsrvtn tme. Clear with some clouds visable to SW.
11/13/2009 9:15 AM 0.00 0.0 M M M Cold only 34 out at 7am. Was up to 49by obsrvtn tme.
11/14/2009 9:15 AM 0.00 0.0 M M M Cold this am, brrr! 35 out when took dog out at 6:45am
11/15/2009 9:15 AM 0.00 0.0 M M M Cold this am, only 41 @obsvrtn tme. Was already down to 39 @ 11pm last night.
11/16/2009 9:15 AM 0.00 0.0 M M M Cold still at night and early morning. Was 36 @ 8am with some patchy valley fog.
11/17/2009 9:15 AM 0.00 0.0 M M M Cold this morning, 36 out at 8am, paperthin sheet of ice on back bird bath.
11/18/2009 9:15 AM 0.20 M M M M Since rained yesterday evening not as cold already 51 out.
11/19/2009 9:15 AM 0.00 0.0 M M M Cold this morning 33 @ 7:20am, paperthin coating of ice on both birdbaths.
11/20/2009 9:15 AM 0.00 0.0 M M M Very light drizzle started about 15m ago nothing measurable yet.
11/21/2009 7:20 AM 0.45 M M M M Most rain fell between 9:45am and 11:30am. Cold this morning 32 out kight freeze. Dense fog, when driving on RPX could not see that there even was a signal at Labath from Food Max driveway. Called in Spotter report, then by time on HWY 101 1/2 way between Todd & Hearn, no more fog and clear. Called back to amend spotter report.
11/22/2009 9:15 AM 0.00 0.0 M M M Clear with some valley fog
11/23/2009 7:15 AM 0.00 0.0 M M M BRRRR! Only 33 out.
11/24/2009 7:15 AM 0.00 0.0 M M M Brrr, paper thin ice on birdbaths, 33 out.
11/25/2009 7:15 AM 0.00 0.0 M M M Cold with some patches on valley fog, 37 out. Last coupla nights have taken toll on some frost sensitive plants.
11/26/2009 7:15 AM 0.00 0.0 M M M Happy Thanksgiving, clear, cold and beautiful out although a bit warmer this am 42.
11/27/2009 7:15 AM 0.02 M M M M Light rain earlier, still a bit of drizzle. Warmer overnight already 49.
11/28/2009 7:15 AM 0.00 0.0 M M M Winds picking up, clear, was in mid 60's yesterday.
11/29/2009 7:15 AM 0.00 0.0 M M M Very windy yesterday! Tree branches really whipping around at times. Lots of leaves falling.
11/30/2009 7:15 AM 0.00 0.0 M M M Wow what a great day, next to last day of November and even though cold at night, was 33 this morning it got to a record breaking 76 yesterday afternoon!
12/1/2009 7:15 AM 0.00 0.0 M M M Still cold this am, 34 out.
12/2/2009 7:15 AM 0.01 M M M M Very drizzly fog,can feel it coming down, everything is wet and dripping. Very foggy but visibilty not too bad. A bit warmer this morning already 40.
12/3/2009 7:15 AM 0.02 M M M M 39 out, fog came in earlier after some sun in pm yesterday. Yesterday, temp seemed to actually drop a few degrees in mid morning, b4 warming in pm. Fog has been heavy and drizzly, close to needing a dense fog spotter report issued. It was ok even on Cotati grade HWY 101 southbound. Could feel drizzle coming down when out w sick dog @3:30am and also @obsrvtn time. Needed wipers driving.
12/4/2009 7:15 AM 0.00 0.0 M M M Cold and foggy dense valley fog, but not much drizzle. Called in a dense fog spotter report last night abt 9pm. Couldn't feel drizzle, but gauge had .02 in it.
12/5/2009 7:15 AM 0.00 0.0 M M M Foggy, but no drizzle, more of a coastal fog. Cool 39. All surfaces damp but not wet. There is .001 in gauge.
12/6/2009 7:15 AM 0.00 0.0 M M M Clear and cold, 31 out. No fog, some coulds to east,lots of frost and birdbath has 1/3" of ice. No fog last night, could still see stars @ 10pm. Nice yesterday, got to 62 by mid afternoon.
12/7/2009 7:15 AM 0.11 M M M M Cold 36, overcast. Light rain started about 4:30pm just as finished with putting up Christmas lights. Had a few test sprinkles about 3:15pm. Was clear enough to see some stars and moon @6:15am, no frost or ice. I hear there is some snow on hills, but clouds down to low to see.
12/8/2009 7:15 AM 0.02 0.0 M M M 24 DEGREES OUT !!!! Heavy frost and ice, birdbath frozen solid and cat's outdoor water 3' from house has 1/4" of ice on it. Dog was fascinated with the crunch of leaves and grass. Yesterday afternoon coworkers driving HWY 101 on Cotati grade @Railroad had slush coming down about 2pm. I hit a small 5 min. hail flurry in Petaluma on Bodega Ave. @Cleveland 2:40pm and called in a spotter report. Hail was aprx. 1/8" diameter.
12/9/2009 7:15 AM 0.00 0.0 M M M Cold again this am, birdbath frozen solid, (abt. 3/4") only 24 out.
12/10/2009 7:15 AM 0.00 0.0 M M M NO ICE THIS AM! Whoopee! Some overcasst, 39 out.
12/11/2009 7:15 AM 0.17 M M M M Light rain started @4:40pm, I actually hit a light shower on Tomales Two Rock Road about 4:10pm. Seems to have quit by obsrvtn. time.
12/12/2009 7:15 AM 0.39 M M M M Light rain started about 5pm.
12/13/2009 7:45 AM 0.96 M M M M Rain off and on during day and evening, some downpours. Was still drizzling @6am, but had quit by time took reading.
12/14/2009 7:15 AM 0.06 M M M M An almost balmy 49 out. Even at 5:30am was 48 out, some fog, I took readings @7:15am but didn't enter tl almost 9am. On drive from Rohnert Park to Petaluma hit some patches of dense valley fog from top of Cotati grade southward.
12/15/2009 7:15 AM 0.00 0.0 M M M overcast, some rain clouds, looks like it will be a while before it starts.
12/16/2009 7:15 AM 0.86 M M M M Rain didn't start until 9:40pm. It was very light then. No rain happening @obsrvtn time, some fog.
12/17/2009 7:15 AM 0.01 M M M M Heavy drizzzzley fog. Could feel coming down @5:40am. Amount is closer to .02, but not quite there, so am reporting .01. Was very foggy driving home last night. Even though it was still like, valley fog was already forming.
12/18/2009 7:15 AM 0.00 0.0 M M M Some fog.
12/19/2009 7:15 AM 0.00 0.0 M M M Cool this am, some fog. Yesterday was great, sat outside and ate lunch and didn't need a jacket.
12/20/2009 7:15 AM 0.00 0.0 M M M Patchy overcast, small system coming in, 49 out.
12/21/2009 7:15 AM 0.11 M M M M Light rain started about 2pm. Showers off and on. Very warm this morning 52 out. If this system had been a pineapple express with alot of moisture, since it is warm we would have gotten soaked.
12/22/2009 7:15 AM 0.05 M M M M Addtional light showers added up during the day. It is 49 out.
12/23/2009 7:15 AM 0.00 0.0 M M M Cold overnight. It is 33 out now. Heavy frost and a light coating of ice on birdbaths.
12/24/2009 7:15 AM 0.00 0.0 M M M Cold and foggy, 32 out. Enough fog came in that metal stair handrails got damp under awning and froze. Now are very slippery. Wood steps are fine. Birdbaths have about 1/32" ice on them.
12/25/2009 7:15 AM 0.00 0.0 M M M Cold, 34 out. Took a long time to warm up, was still only 43 at 11am when took dog and grandson for a walk yesterday.
12/26/2009 7:15 AM 0.00 0.0 M M M A bit warmer 39 out. Some light rain is supposed to come in later. A bit of breeze blowing.
12/27/2009 7:15 AM 0.37 M M M M Rain started about 3pm. It came in bands, some heavier about 4pm, then almost quit for a while before starting up again. Overcast now but dry.
12/28/2009 7:15 AM 0.00 0.0 M M M Very heavy valley/ground fog this am.
12/29/2009 7:15 AM 0.00 0.0 M M M Exremely foggy this morning, can't see end of court just 7 houses down.Called in spotter report for dense fog a bit after 6am. Yesterday also called in one about 8am after driving through town and having about 1/3 to 1/4 m visibilty.
12/30/2009 7:15 AM 0.36 M M M M no rain @obsrtvn time. Light rain started about mid afternoon.
12/31/2009 7:15 AM 0.02 M M M M Overcast heavy drippy fog.
1/1/2010 8:15 AM 0.08 M M M M Light drizzle and rain in evening
1/2/2010 9:15 AM 0.36 M M M M
1/3/2010 9:15 AM T M M M M Very foggy
1/4/2010 7:15 AM 0.01 M M M M Same old drippy fog
1/5/2010 9:15 AM 0.00 0.0 M M M Overcast, fog but not as drippy this am.
1/6/2010 9:15 AM 0.00 0.0 M M M Overcast and valley fog again.
1/7/2010 7:15 AM 0.00 0.0 M M M Very foggy again; almost dense enough to call in a spotter report, visibilty in Rohnert Park and Petaluma was about 1/2 mile. Our chance of rain stayed north
1/8/2010 7:15 AM 0.00 0.0 M M M Overcast and some fog, but not dense valley fog like we have had, light breeze.
1/9/2010 9:15 AM 0.02 M M M M Heavy fog, drizzly or light rain? Actually saw sun for a while in afternoon.
1/10/2010 9:15 AM 0.01 M M M M Heavy drippy fog again this am even on surfaces under carport. Sun only came out on Sat. for a few minutes abt. 4pm. This damp cold is awful! Very tired of it. I know is not cold like rest of country, but the dampness goes right thru you making it hard to get going and go outside to prune roses. Wish it would rain or be clear and cooler.
1/11/2010 7:15 AM T M M M M Overcast with light breeze. Clouds are very low, but no valley fog to speak of. Feels like promised rain is on its way.
1/12/2010 7:15 AM 0.44 M M M M Light rain started abt 10:30pm Monday night. It is warmer out now (53 degrees at obsvrtn time) as it was by noon yesterday. Looks like some clearing in progress. More Showers promised,hopefully another inch. (Probably wishful thinking)
1/13/2010 7:15 AM 0.35 M M M M Still warm, was already 50 out at 5:30am. I think I heard some thunder abt 10pm as was dropping off 2sleep & too sleepy 2ck out. Co-worker who lives in Sebastopol said he had thunder & lighting abt then. Clearing out, clouds almost fog like, but producing big drops of rain at obsrvtn tme.
1/14/2010 7:15 AM 0.03 M M M M Very dense fog this am.Back to beong cold. Yesterday am about 8am while getting gas clouds were here and there, light rain falling even though no cloouds were directly above. To the NW & West was a huge vibrant rainbow! Unfortunately didn't have camera & cell camera was full.
1/15/2010 7:15 AM 0.00 0.0 M M M A few high clouds, cool 42 out. Yesterdy after obsrvtn cld in a dense fog spotter report. Visisbilty was 1/4 to 1/2 mile. Then when driving out to Valley Ford on Robalar Rd. as soon as road climbed a bit maybe 100', fog was gone & dazzeling sunshine with emerald green fields. Go down & it was back. Abt 9:30am headed over 2Tomales on back road from VF and when hit hill crest could see all the way to Sonoma Mtn. Green hills and valley fog in valleys including it looked like 101 corridor still fogged in. View from elephant rock down 2Dillion Beach towards mouth of Tomales bay & Point Reyes lighthouse was spectacular. Too bad I couldn't pause & enjoy since driving for work.
1/16/2010 9:15 AM 0.00 0.0 M M M Some high clouds, bit of breeze.
1/17/2010 7:15 AM 0.11 M M M M Shower came through between 4:30pm & 5:30pm dropping most of this.Warm, 52 out.
1/18/2010 7:15 AM 0.66 M M M M Light rain started abt. 2:30pm. Then most held off till after 4pm. Still warm this am, 50 out.
1/19/2010 7:15 AM 1.77 M M M M Lots of WIND & rain!
1/20/2010 7:15 AM 1.78 M M M M Heavy rain and lots of wind. Yesterday thunder, lighting and extremely heavy rain for aprx. 25m. in Petaluma from 3:15 to 3:40pm with ponding on road/driveway of work. Cl'd in spotter report @3:4ppm for heavy rain, lighting etc., didn't see any hail, their line was busy during actual thunderstorm. While driving 2 R.P. 2big rainbows @ base of Sonoma Mtn.
1/21/2010 7:15 AM 1.85 M M M M Lots of rain in am of Wednesday, then a break thank goodness. Creeks/Laguna came up and flooded neighborhood yesterday abt 8 am till about 3pm when it could hold no more. Neighbors said it was still driveable if you went slow and didn't hv low slung car. Laguna/Copeland & Hinebaugh creeks were up and over banks onto walkways. Of course RPX was closed and some idiots insisting on trying to drive thru made evening news when they had to be rescued. No flooding so far this am.
1/22/2010 7:15 AM 0.66 M M M M Whn 1st went out abt. 5:15am was mostly clear & could see a few stars. By 5:40a, a dense ground fog was had started to form & couldn't see end of court. So cld in a dense fog spotter report. Then by 6:30am it was raining again with a little less dess fog.
1/23/2010 9:15 AM 0.59 M M M M Rain off & on in heavy bursts through out day till afternoon.
1/24/2010 7:15 AM 0.19 M M M M Most rain fell in 15m period at 11:45am along w- 1/16" size hail for 3 or 4 minutes mixed w-rain. Called in spotter report and from distance during downpour it looked like abt .20 but ended up being .15.
1/25/2010 7:15 AM 0.81 M M M M Breezy and rain picking up.
1/26/2010 7:15 AM 0.79 M M M M Rain & wind yesterday, just a mist today. Roads 2 Vly Frd & Tomales flooded, but RP EXPWY was still open & fine whn I came thru @5:50pm. Weird! Usually whn other places are flooding, so does the expwy.
1/27/2010 7:15 AM 0.02 M M M M
1/28/2010 7:15 AM 0.00 0.0 M M M Foggy, dense this am, some sunshine yesterday it was nice to see it.
1/29/2010 7:15 AM 0.00 0.0 M M M Overcast and part clear, some rain due later.
1/30/2010 9:15 AM 0.32 M M M M Rain started in mid afternoon with most falling late afternoon and early evening. As was coming home on Cotati Grade about 7pm clouds were down and swirling around upper part and it was pouring enough that everyone slowed down.
1/31/2010 8:15 AM 0.02 M M M M Heavy fog that is still drizzling. It was probably dense last night and in early am.
2/1/2010 7:15 AM 0.00 0.0 M M M Very dense, but clearing fog, wet out, but could not feel any drizzle.
2/2/2010 7:15 AM 0.02 M M M M A few drops about 5:15pm last night. Then heard a shower in early morning. When walking dog this about 7:15am saw lots (over 20) robins in park instead of the usual 1 or 2 egrets.
2/3/2010 7:15 AM 0.08 M M M M Most of this fell between 5:30am and 7am this morning.
2/4/2010 7:15 AM 0.02 M M M M Some showers during earlier day, then SUN! Was able to sit outside and eat lunch.
2/5/2010 7:15 AM 1.02 M M M M Rain started mid day with some wind. The heavy rain 5 to 7pm with heavier wind. Clearing with Fog this am.
2/6/2010 8:32 AM 0.44 M M M M
2/7/2010 8:15 AM 0.32 M M M M
2/8/2010 7:15 AM 0.02 M M M M
2/9/2010 8:15 AM 0.00 0.0 M M M
2/10/2010 7:15 AM 0.00 0.0 M M M Dense fog this am & cooler 37 out. Called in a dense fog spotter report @6:08am.
2/11/2010 7:15 AM 0.00 0.0 M M M Combo of stars and clouds @5:45am, supposed to be a bit of rain later today. Yesterday was great. Sun and nice out miday, was great to get out of building for lunch and enjoy.
2/12/2010 7:15 AM 0.14 M M M M Rain started late afternoon about 5:30pm. Had some clouds first am that looked promising but they kept on going. Was warm enough to eat lunch outside with a hoodie on.
2/13/2010 9:15 AM 0.10 M M M M light steady drizzle most of day starting about 10am. Clouds were down so low it almost seemed like fog midday. Seemed like more coming down due to water on roadways when trucks drove by. I guess everything is still saturated and all is runoff. Overcast with fog @observation time.
2/14/2010 9:15 AM T M M M M Dense fog this am. .02 in gauge, everythin is wet and drippy, could hear it dripping off trees onto roof during night. Then cleared and made it to 61.
2/15/2010 8:15 AM T M M M M .01 in gauge from dense valley fog still in place.Warmer this am @49. Yesterday it was late morning before it cleared. Then wa-lah! Sunshine and mid 60's it is great to open some windows and get fresh air inside.
2/16/2010 9:15 AM 0.00 0.0 M M M
2/17/2010 9:15 AM 0.00 0.0 M M M
2/18/2010 9:15 AM 0.00 0.0 M M M
2/19/2010 9:15 AM 0.00 0.0 M M M
2/20/2010 9:15 AM 0.00 0.0 M M M
2/21/2010 9:15 AM 0.00 0.0 M M M
2/22/2010 7:15 AM 0.08 M M M M Light rain starting mid day Sunday
2/23/2010 7:15 AM 0.01 M M M M Just starting to sprinkle. Wow what a great day yesterday. After dense fog (including calling in a dense fog spotter report @7:45am) short sleeves and sun for lunch before clouds came in by 4pm, yet still had some stars @9pm.
2/24/2010 7:15 AM 1.63 M M M M Rain and wind. Wind picked up in late afternoon and evening. Some minor road closures in Valley Ford area and Green Valley. Windsor had earthquake last night a 2.3 I think around 8.30 or so. I didn't feel it.
2/25/2010 7:15 AM 0.03 M M M M Last of am showers before clearing to a beautiful day in mid 60's. Plum and apricot trees are blooming.
2/26/2010 7:15 AM 0.01 M M M M Patchy clouds @5:45am, then a brief light test shower @6:40am. Warm! It is 54 already, it was toasty with rain gear on when walking dog. Yesterday after fog cleared was great.
2/27/2010 7:30 AM 0.82 M M M M
2/28/2010 8:15 AM 0.03 M M M M A bit of showers then a great day.
3/1/2010 7:30 AM 0.00 0.0 M M M Overcast
3/2/2010 7:30 AM 0.54 M M M M Rain started after midnight.
3/3/2010 7:15 AM 1.18 M M M M A break in rain @obsrvtn time. There is a small pond in backyard since ground is saturated.
3/4/2010 7:15 AM 0.35 M M M M Cold this morning 37 and very dense fog. Called in a dense fog spotter report. Yesterday also called in a spotter report for hail yesterday @1:07pm for hail mixed with rain, lasted 6 minutes.
3/5/2010 7:15 AM 0.00 0.0 M M M Cold again, 36 out. When I was driving on Rohnert Park Expressway eastbound by Food Max about 9:30am sun was out but ground was still cold and wet so steam was rising & swirling up like mist on a lake. Unfortunately I didn't have a camera.
3/6/2010 7:15 AM 0.00 0.0 M M M Cooler this am with a breeze, supposed to be nice later.
3/7/2010 7:15 AM 0.00 0.0 M M M Nice out this am a bit warmer, yesterday breeze kept temps down a bit.
3/8/2010 7:15 AM 0.00 0.0 M M M Cooler again, 41 out with a light breeze so brisk when walking dog.
3/9/2010 7:15 AM 0.04 M M M M Thunderstorm with brief downpours late afternoon.
3/10/2010 7:15 AM 0.31 M M M M Light rain started about 9:20pm. Cold this am 34 out with heavy frost. Paperthin sheet of ice on rear birdbath.
3/11/2010 7:15 AM 0.00 0.0 M M M Not as heavy frost this am, 36 out. Betty Boop climbering rose in more sheltered location has 3 blossoms.
3/12/2010 7:15 AM 0.02 M M M M Light rain started about 6:45am, warmer 48 out. Yesterday was fantastic like a spring day. On work break was out on way 2Tomales &took it on bluff overlooking Dillion Beach & mouth of Tomales Bay. No wind, only needed a sweatshirt outside. Bay was so calm you can see the slight reflection/shadow of eucalyptus on Tomales Point.
3/13/2010 7:15 AM 0.64 M M M M Rain through out day yesterday, letting up towards evening. Stray shower came through about 8:30am. Clear and cold this am, 34 @obsrvtn time. Drops on outside of gauge frozen yet birdbaths have no ice. Heavy frost on roofs.
3/14/2010 7:30 AM 0.00 0.0 M M M Nice day yesterday, reached 60 however breeze was cold so it really felt much cooler.
3/15/2010 7:15 AM 0.00 0.0 M M M 39 out with some ground fog, darker again. Why do we still do this time change thing? UGH!
3/16/2010 7:15 AM 0.00 0.0 M M M 43out, some overcast and wisps of ground fog drifting around. Yesterday stayed warm in evening, was still 57@8pm after a high in low 70's.
3/17/2010 7:15 AM 0.00 0.0 M M M Cold again this morning.
3/18/2010 7:15 AM 0.00 0.0 M M M Warm yesterday, mid 70's. Lots of ground fog and condensation this am. There is .01 in gauge.
3/19/2010 7:15 AM 0.00 0.0 M M M Warm almost hot yesterday! Broke a record since it was 84 out. Yet in am about 8am I called in a dense gound fog spotter report. Not supposed to be as warm today.
3/20/2010 8:15 AM 0.00 0.0 M M M Cold 40 again this am. Yesterday was 77. 1st striped tiger rose blooming.
3/21/2010 8:15 AM 0.00 0.0 M M M Overcast with lots of fog. Plants and ground not shaded by trees are wet and .01 condensation in gauge.
3/22/2010 7:15 AM 0.00 0.0 M M M Cool, 41 out,lots of dew/condesation,light frost,as sun comes up some ground fog. Lots of blooms pear & nectarine, Disneyland & Tropicana bush roses, Joseph's Coat climbing rose.
3/23/2010 7:15 AM 0.00 0.0 M M M Mid seventies yesterday, more roses blooming.
3/24/2010 9:15 AM 0.00 0.0 M M M Higher 70's, are we sure it isn't summer in disguise? Took morning break @elephant rock above Dillion beach and it was warm enough at 10am I was hot with sweatshirt on, Wow!
3/25/2010 7:15 AM 0.20 M M M M Rain started about 7:30pm and most of this little bit fell between 7:30pm and 8:30pm.
3/26/2010 8:15 AM 0.17 M M M M Brr! Only 37 out.
3/27/2010 8:15 AM 0.00 0.0 M M M Looks like it will be nice out today. A bit warmer this morning 41.
3/28/2010 8:15 AM 0.00 0.0 M M M What a great day yesterday! Went out to watch sunset at Pt. Reyes lighthouse. Breeze was very little maybe 3-5mph, only needed a sweatshirt without hood up on obeservation deck @beggining of the 300+ steps on most western point of land in California. Sunset was good with incoming clouds of Mondays rain.
3/29/2010 7:15 AM 0.13 M M M M Warm out, 54 with very light rain. Fuji apple first blooms opening.
3/30/2010 7:15 AM 0.27 M M M M Partly cloudy, thought there would be more rain in gauge, since wind made it really sound like it was pouring a coupla times during night.
3/31/2010 7:15 AM 0.54 M M M M Cold, I think we are back in winter, worried about nasturiums as necterine tree hasn't fully leafed to protect.
4/1/2010 7:30 AM 0.26 M M M M Atill cols, 36 out, most rain fell from 3pm on. Local paper has picture of Macayamas and geyers road with snow on them. Very unusal this late in year.
4/2/2010 8:15 AM 0.02 M M M M Light drizzle. Yesterday when taking grandson to school at 7:45am could see snow on Mt. St. Helena, the Macaymas with steam raising from the geysers. Didn't have a camera, cell phone camera didn't show much. Hd camera @10:30, but clouds hd dropped back down. Finally got a clear shot about 2:30pm, a lot of snow already melted and not cold enough for geysers steam to show.
4/3/2010 9:15 AM 0.54 M M M M Rain ended by early evening. Foggy & cold 37 out this am.
4/4/2010 9:15 AM 0.00 0.0 M M M Windy and cool, a few drops starting.
4/5/2010 9:15 AM 0.52 M M M M Lots of Rain, cold and major wind yesterday. Then clearing and a bit warmer
4/6/2010 9:15 AM 0.05 M M M M Light showers @observation time on Monday, then clearing and a nice day. Then a frost waring was issued for the northbay last night. Cold this am, 34 out.
4/7/2010 9:15 AM 0.00 0.0 M M M Getting warmer each day.
4/8/2010 9:15 AM 0.00 0.0 M M M Another great day.
4/9/2010 9:15 AM 0.00 0.0 M M M
4/10/2010 9:15 AM 0.00 0.0 M M M What a beautiful day on Friday, it was in mid 70's!
4/11/2010 9:15 AM 0.27 M M M M Rain wasn't supposed to start until during the night, however .04 this fell starting @11am Sat.
4/12/2010 7:15 AM 1.18 M M M M Steady rain almost all day with a break at 5pm enough to get a 30m walk w-dog in light mist. Some wind but not like last Sundays storm. I heard some thunder a bit after 10pm to the north. Still sprinkling @obsrvtn time.
4/13/2010 7:15 AM 0.09 0.0 M M M Clear and cool this am, 38 with frost. Rain in gauge from last of Sunday's storm that came down after yesterdays obsrtvn time.
4/14/2010 7:15 AM 0.00 0.0 M M M Overcast, feels like rain even though they say it is going to stay north of here.
4/15/2010 7:15 AM 0.00 0.0 M M M A bit warmer this morning.
4/16/2010 7:15 AM 0.00 0.0 M M M
4/17/2010 8:15 AM 0.00 0.0 M M M Wow, it is already 56 out! Warmest morning in a long time.
4/18/2010 8:15 AM 0.00 0.0 M M M Great day yesterday, low 70's. Picked up some tomato plants from Senk's to supplament the ones I have started from seed. Hopefully no more nights below 40 or my kitchen counter is going to be covered with tomato, cucumber, gourd and watermelon pots, instead of outside table. Hopefully two more weeks and they can go in ground.
4/19/2010 7:15 AM 0.00 0.0 M M M 51 out with some high clouds overhead. We are supposed to have rain later tonight.
4/20/2010 7:15 AM 0.04 M M M M
4/21/2010 9:15 AM 0.00 0.0 M M M
4/22/2010 7:15 AM 0.39 M M M M Colder this am, light frost on rooftops when walking dog. I am glad tomatoes & veggies are still under awning & not planted yet.
4/23/2010 7:15 AM 0.00 0.0 M M M A bit warmer this am, 43. Yesterday 72.
4/24/2010 9:15 AM 0.00 0.0 M M M
4/25/2010 8:15 AM 0.00 0.0 M M M Warm, mid 70's, already in low 50's.
4/26/2010 7:15 AM 0.00 0.0 M M M Clear now, we are supposed to get rain tonight. Yesterday was like summer, low 80's.
4/27/2010 7:15 AM 0.34 M M M M Light rain falling, but wind is blowing it sideways.
4/28/2010 7:15 AM 0.11 M M M M Clear now, clouds to southwest. Very windy in afternoon and early evening. Pollen was flying around something awfull, achoo!!!
4/29/2010 9:15 AM 0.00 0.0 M M M
4/30/2010 9:15 AM 0.00 0.0 M M M
5/1/2010 7:00 AM 0.00 0.0 M M M
5/2/2010 7:00 AM 0.00 0.0 M M M
5/3/2010 7:00 AM 0.00 0.0 M M M
5/4/2010 7:00 AM 0.00 0.0 M M M
5/5/2010 7:00 AM 0.00 0.0 M M M
5/6/2010 7:00 AM 0.00 0.0 M M M
5/7/2010 7:00 AM 0.00 0.0 M M M
5/8/2010 7:00 AM 0.00 0.0 M M M
5/9/2010 8:15 AM T M M M M Looks like rain is early, just starting out now.
5/10/2010 7:15 AM 0.04 M M M M Mid morning shower, a few more about 2pm.
5/11/2010 7:15 AM 0.17 M M M M Brr cold this am, 37 out @6:15am,now only 39, heavy frost. Crunchy grass in the shade and frost on rooftops. Glad tomatoes still under awning. This is late for this cold.
5/12/2010 7:15 AM 0.00 0.0 M M M Warmer than yesterday morning, 47 out.
5/13/2010 7:15 AM 0.00 0.0 M M M Nice day yesterday. Much better than earlier in week. Apples and necterines are setting fruit, if drop doesn't happen I will have to thin soon.
5/14/2010 7:15 AM 0.00 0.0 M M M Fog is in good and solid. It made it in from coast. Yesterday had to go to Valley Ford & at 8:30am it was clearing, no widn to speak of. Was warm enough to take off sweatshirt by 9:15am. What a great day it turned out to be.
5/15/2010 7:15 AM 0.00 0.0 M M M 51 and fog is in. Yesterday driving to work it was down low & swirling ontop of Cotati grade. Fog cleared about 11am in downtown Petaluma. Fog was in at my house last night by 10pm.
5/16/2010 7:00 AM 0.00 0.0 M M M
5/17/2010 7:15 AM T M M M M Just enough to need wipers a bit. Sun didn't come out yesterday until 2pm.
5/18/2010 7:15 AM 0.64 M M M M Good rain, 52 out this am. We needed this rain. Even though it has rained about once a week, the adobe ground is still drying out and cracking. It is nice to have green hills this late in May. It has been a few years since they haven't turned brown by 1st of May.
5/19/2010 7:15 AM 0.00 0.0 M M M 52, with clouds to north. Chance of rain later today.
5/20/2010 7:15 AM 0.03 M M M M Light rain @various times thru day. Cold this morning was 41 @6am, coming up to 47 by obsrvtn time.
5/21/2010 6:30 AM 0.00 0.0 M M M Brr....! It is 41 out, earlier when first got up it was 40. When walking dog a few minutes ago saw what looks to be some very late season frost in patches on some roofs. Since it is so cool in mornings I wonder if PGE will change back to lower winter rates? I have been splurging & kicking heat on for an hour or so in am's.
5/22/2010 7:15 AM 0.00 0.0 M M M Warmer this morning 48 out.
5/23/2010 8:15 AM 0.00 0.0 M M M 50 out, looks like going to be a nice day for my planned hike later on.
5/24/2010 7:15 AM 0.00 0.0 M M M Clouds to the south & east. Nice yesterday although winds in late afternoon got to be pretty gusty & cool for a while especially up at Tolay Lake Regional park a bit after 5pm. Wind was enough that dog was jumpy walking in trees. Was also breezy up at Crane Canyon but felt good abt 3:30pm.
5/25/2010 7:15 AM 0.01 M M M M Light misty rain falling.
5/26/2010 7:15 AM 0.44 M M M M Light ground fog. Most of the rain had quit by 9pm.
5/27/2010 6:30 AM 0.07 M M M M Light rain now, has been off & on brief downpours. Some thunder & lighting around 5:45am to the northwest. Called in spotter report. There was enough thunder & lighting that I waited 15 to 20 minutes for it to pass well by before walking the dog.
5/28/2010 7:15 AM 0.70 M M M M Clearing, nice soaking rain. To hear everyone talk, you would think it never rains in May. Of course it has been 5 years since we had rain in May. Twice the rain amounts have been over 4 inches for the month. I think all the cool windy days between our wet days is what has gotten to people.
5/29/2010 8:15 AM 0.00 0.0 M M M Already 54 out and clear.
5/30/2010 9:15 AM 0.00 0.0 M M M
5/31/2010 8:15 AM 0.00 0.0 M M M Looks like a going to be a nice day. Some overcast to north. Yesterday was almost 80.
6/1/2010 7:15 AM 0.00 0.0 M M M Overcast, fog clears; then comes back in. Fog was in by 8:30pm last night. Very windy from 4pm to about 8pm last night.
6/2/2010 7:15 AM 0.00 0.0 M M M Foggy out.
6/3/2010 7:15 AM T M M M M Warm 58, light mist? Rain? falling, can see it & feel it, but streets not completely wet. Also is a bit foggy out.
6/4/2010 7:15 AM 0.07 M M M M Light rain falling, but warm 60 out.
6/5/2010 9:15 AM 0.03 M M M M Muggy already, with some clouds. This rain happened am Friday after obsrvtn time.
6/6/2010 9:15 AM 0.00 0.0 M M M Still some high clouds, has been very muggy & sticky the mid 70's that feels like 90's.
6/7/2010 9:15 AM 0.00 0.0 M M M Fog is gone, however grass is wet to touch so it was in and drippy.
6/8/2010 9:15 AM 0.00 0.0 M M M Not as much overcast, some clearing already.
6/9/2010 7:15 AM 0.04 0.0 M M M Rain shower passed by during night, everything still wet and dripping.
6/10/2010 7:15 AM 0.00 0.0 M M M Camping out at Doran Regional Park, Bodega Bay. Luckily we have a protected campsite and breeze from the west is about 10mph and cool.
6/11/2010 7:45 AM 0.00 0.0 M M M Camping out at Doran Regional Park, Bodega Bay. Wind just stirring, nice out. Yesterday since too windy & a bit cool for grandson to play in water drove up coast. Ranger station at Gerike Cove campground had sign saying wind at 40 knots.
6/12/2010 7:30 AM 0.00 0.0 M M M Already 66 out!!!! Going to be a hot one. Yesterday when we left Doran in Bodega Bay, it was 60 out at 3pm with a steady westward wind of 13mph per my annometer and higher gusts which annometer said wind chill made it 55 out. By 3:30pm we hit Sebastopol and my car temp said it was 85 out. I wanted to turn around and go back to coast!
6/13/2010 7:15 AM 0.00 0.0 M M M 60 degrees out already, shaping up to be another hot one. Did not really cool down overnight. What a sorcher Saturday was; 96. Nice weather for the Peggy Sue downtown cruise downtown Santa Rosa Saturday evening.
6/14/2010 7:15 AM 0.00 0.0 M M M Cooler this am, yesterday reached 87. Breeze changed midday & swung around from coast.
6/15/2010 7:15 AM 0.00 0.0 M M M Clear, grass is damp like fog came in briefly. Yesterday while driving to Petaluma about 8am, Cotati grade at the top was enshrouded & swirling in fog. Northern Petaluma had fog down halfway between Payran & the Outlet mall.
6/16/2010 7:15 AM 0.00 0.0 M M M Grass in wet, but no fog in view.
6/17/2010 7:15 AM 0.00 0.0 M M M Cold out this morning 45 out. Just 5 days ago it was in 60's at this time of day.
6/18/2010 7:15 AM 0.00 0.0 M M M BRRRR!!! 46 out this morning with heavy fog.
6/19/2010 8:15 AM 0.00 0.0 M M M 49 out, some high clouds overhead. Yesterday while going out Pepper Rd. on way to Tomales fog was down low and swirling in treetops at Mecham. Almost to Bodega Ave. was a dairy pond on right that had clouds of steam raising up in the air since it was cooler. With some fields mowed and brown and others not yet so still green (in June no less) the country side looks like a golden brown and green patchwork quilt.
6/20/2010 8:15 AM 0.00 0.0 M M M Some condensation on grass, 53 out and clear.
6/21/2010 8:15 AM 0.00 0.0 M M M Clear, 50 degrees.
6/22/2010 7:15 AM 0.00 0.0 M M M High clouds, 51.
6/23/2010 7:15 AM 0.00 0.0 M M M Coastal fog hugging the treetops (poplars, redwoods, palms, sycamores in neighborhood when walking dog. So fog was down to 100' or less. When checked NOAA site at 3pm Tues.it said light rain. Did a double check. Saw no evidence, and no reports from Sonoma CoCoRahs observers. It must not have reach the ground.
6/24/2010 7:15 AM 0.00 0.0 M M M 50 and overcast with coastal fog. Yesterday about 8am going over Cotati grade fog was down swirling and thick visibilty was down to less than 1/2 mile at top. Since top is only 1/2 mile or so, didn't call in a spotter report.
6/25/2010 7:15 AM 0.00 0.0 M M M Fog in this morning. Yesterday afternoon was already in by 4pm in Petaluma, went up Cotati grade and Cotati,Rohnert Park were still clear.Some fog curling in around Sonoma Mtn. In morning a bit before 8am, fog on Cotati grade was prouducing frizzle (drizzle from fog). It wasn't enough to use wipers.
6/26/2010 8:15 AM 0.00 0.0 M M M Overcast, fog. Yesterday cleared in Petaluma about 11am. Was already coming in at 4pm in Tomales. Fog was in at my house by 8pm.
6/27/2010 8:15 AM 0.00 0.0 M M M Supposed to be hot, feels like it, already can feel heat while watering, 61 out.
6/28/2010 7:15 AM 0.00 0.0 M M M Going to be hot again, already 59 out. Yesterday reached 94.
6/29/2010 9:15 AM 0.00 0.0 M M M
6/30/2010 9:15 AM 0.00 0.0 M M M
7/1/2010 7:00 AM 0.00 0.0 M M M
7/2/2010 7:00 AM 0.00 0.0 M M M
7/3/2010 7:00 AM 0.00 0.0 M M M
7/4/2010 7:00 AM 0.00 0.0 M M M
7/5/2010 7:00 AM 0.00 0.0 M M M
7/6/2010 7:00 AM 0.00 0.0 M M M
7/7/2010 7:00 AM 0.00 0.0 M M M
7/8/2010 7:00 AM 0.00 0.0 M M M
7/9/2010 7:00 AM 0.00 0.0 M M M
7/10/2010 7:00 AM 0.00 0.0 M M M
7/11/2010 7:00 AM 0.00 0.0 M M M
7/12/2010 7:15 AM T M M M M More Frizzle from the fog, everything drippy, 54 out. Heavy enough that can feel it.
7/13/2010 9:15 AM 0.00 0.0 M M M
7/14/2010 9:15 AM 0.00 0.0 M M M
7/15/2010 9:15 AM 0.00 0.0 M M M
7/16/2010 9:15 AM 0.00 0.0 M M M
7/17/2010 9:15 AM 0.00 0.0 M M M
7/18/2010 9:15 AM 0.00 0.0 M M M
7/19/2010 9:15 AM 0.00 0.0 M M M
7/20/2010 9:15 AM 0.00 0.0 M M M
7/21/2010 9:15 AM 0.00 0.0 M M M
7/22/2010 9:15 AM 0.00 0.0 M M M
7/23/2010 9:15 AM 0.00 0.0 M M M
7/24/2010 9:15 AM 0.00 0.0 M M M
7/25/2010 9:15 AM 0.00 0.0 M M M
7/26/2010 9:15 AM 0.00 0.0 M M M
7/27/2010 7:15 AM 0.01 M M M M Very heavy fizzle/mist this am, 52. Everything is wet almost like a light shower came through. Felt it when outside and walking dog. If it cleared yesterday for a few minutes, I didn't see it.
7/28/2010 7:15 AM 0.00 0.0 M M M No frizzle this am that I can feel, 53.
7/29/2010 7:15 AM 0.01 M M M M Lots of dripping this am,52. Could hear accumulated frizzle dropping down from persimonnon tree leaves to other leaves. Felt it walking dog, if longer walk would have wanted a hat to keep off glasses.
7/30/2010 7:15 AM 0.01 M M M M 52 and very wet & frizzly, you can hear the fog feet dripping(tip toeing) off all the trees.
7/31/2010 9:15 AM 0.00 0.0 M M M Looks like frizzle earlier but wasn't up early enough to feel it.
8/1/2010 9:15 AM 0.01 M M M M Lots of frizzle and fog this morning, 54.
8/2/2010 7:15 AM 0.01 M M M M Frizzle & more frizzle, 52
8/3/2010 7:15 AM T M M M M More frizzle, 52
8/4/2010 7:15 AM T M M M M Frizzle and 52
8/5/2010 7:15 AM T M M M M Light frizzle falling from fog @6am, 51.So far everyday this week have had to use wipers going to work (7:15am RP, then south 2 Petaluma by 8am.) Fog also has been in very low down, about 40 to 50' and beautifully swirling in trees. My tomatoes don't think it is beautiful, they are just sulking and not doing much.
8/6/2010 7:15 AM 0.00 0.0 M M M Just a hint of frizzle this am. Fog seems to be thick, but I am not feeling anything coming down; 52. Highs all week mid to low 70's. Yesterday @SO Co Fair wanted a hoodie by 7pm, last year it was roasting, shorts & tanks.
8/7/2010 9:15 AM 0.00 0.0 M M M Fog again, has been clearing most days between 11 & 12. Much as I hate to note it since summer never really showed up, the leaves on my ornamental red plum trees are starting to drift down.
8/8/2010 9:15 AM 0.00 0.0 M M M looks like some frizzle earlier, still only 53 out.
8/9/2010 7:15 AM T M M M M Overcast fog again, some frizzle coming down, 52. I am getting so used to the cooler weather, that when walking the dog about 1pm yesterday and temp was 73 we were both warm in the sun. If we get some Indian summer days it will be uncomfortable.
8/10/2010 7:15 AM T M M M M Lots of frizzle this am, when walking dog for a short 10min walk had to dry glasses when done. I knew it was heavier, but didn't think I would want a hat. Same old 52 out, but seems cooler for some reason.
8/11/2010 7:15 AM 0.02 M M M M Very wet & drippy, frizzle is heavy enough to be called a drizzle, 51 out. I could hear the fog dripping off the leaves from bedroom.I think they call that fog feet?
8/12/2010 7:15 AM 0.00 0.0 M M M Just a hint of frizzle this am, 52. Yesterday didn't clear @work in Petaluma untill between 1pm & 2pm. I had to use wipers on delay all the way to work from frizzle/drizzle! Usually intermintent is fine on most days this lost summer with all our frizzle & fog.
8/13/2010 7:15 AM T M M M M Frizzle again coming down.51 out.
8/14/2010 9:15 AM 0.00 0.0 M M M Fog.
8/15/2010 9:15 AM 0.00 0.0 M M M Same old foggy mornings & eveings
8/16/2010 9:15 AM 0.00 0.0 M M M Fog
8/17/2010 8:25 AM T M M M M Lots of frizzle, everything damp, can still feel it coming down, 51 out. Cleared yesterday about 10:30am. High 71. Fog back in by 8pm.
8/18/2010 9:15 AM 0.00 0.0 M M M Fog again
8/19/2010 9:15 AM 0.00 0.0 M M M Fog
8/20/2010 9:15 AM 0.00 0.0 M M M Fog again, 54. possible frizzle earlier since walkway, leaves and grass are wet however don't feel anything currently.
8/21/2010 9:15 AM 0.02 M M M M Very wet and foggy this am, lots of frizzle. Could feel and see it coming down @ 9pm last night when leaving Costco, @4:30am when took dog out and still at 9am.
8/22/2010 9:15 AM 0.00 0.0 M M M Fog trying to clear now. Didn't clear yesterday until 1:30pm. Going to be warmer today.
8/23/2010 8:15 AM 0.00 0.0 M M M Going to be hot today, 1st day with out fog since 1st part of July; already 63 out. Yesterday's fog cleared by 9:30am.
8/24/2010 7:15 AM 0.00 0.0 M M M Going to be hot again today.
8/25/2010 7:15 AM 0.00 0.0 M M M Wow was it hot yesterday! Record breaking heat, yesterday it was 104. It was still 92 @7:30pm when it has been in the low sixties & high 50's at that time all summer. I guess we are getting all of our summer all at once.
8/26/2010 7:15 AM 0.01 M M M M Wow fog is back and frizzling down! Hard to believe last two days have been record breaking heat.
8/27/2010 7:15 AM 0.00 0.0 M M M Fog down and swirling to rooftops this am, however do not feel any frizzle, cool 50.
8/28/2010 7:15 AM 0.00 0.0 M M M Clear, cool 51, clouds to north.
9/6/2010 9:15 AM 0.00 0.0 M M M
9/7/2010 9:15 AM 0.00 0.0 M M M
9/8/2010 9:15 AM 0.00 0.0 M M M
9/9/2010 9:15 AM 0.00 0.0 M M M
9/10/2010 9:15 AM 0.00 0.0 M M M
9/11/2010 9:15 AM 0.00 0.0 M M M
9/12/2010 9:15 AM 0.00 0.0 M M M
9/13/2010 9:15 AM 0.00 0.0 M M M
9/14/2010 9:15 AM 0.00 0.0 M M M
9/15/2010 9:15 AM 0.00 0.0 M M M
9/16/2010 9:15 AM 0.00 0.0 M M M
9/17/2010 9:15 AM 0.00 0.0 M M M
9/18/2010 9:15 AM 0.00 0.0 M M M
9/19/2010 9:15 AM 0.11 M M M M Light rain as predicated started falling in early hours, down to a mist now. Still overcast, have to leave for Ukiah later today, am glad rain has almost quit since have to drop grandson off south in Petaluma first before heading north and it hasn't rained in a long time. Therefore roads would be very slick from accumalated oils if continued.
9/26/2010 9:15 AM 0.00 0.0 M M M
9/27/2010 9:15 AM 0.00 0.0 M M M
9/28/2010 9:15 AM 0.00 0.0 M M M
9/29/2010 9:15 AM 0.00 0.0 M M M
9/30/2010 9:15 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
8/29/2010 9/05/2010 8:15 AM 8 0.00 0.0 0.00 Left on the 29th to spend week in Sacramento for work. The first 2 days were tolerable except it doesn't cool off at night like home. Then starting Wednesday it got hot around 100 downtown where I was. Thursday evening I went out around 7pm and thought since I was only walking 4 blocks to dinner I wouldn't need a water bottle. Wrong, it felt like it was still in 90's. Friday it was 103 coming home thru Vacaville, so it was also hot at home. The difference is that cool off in Sacto at night is 70's, at home is 50's. I was delighted on Friday when cresting hill on 80 overlooking Vallejo and could see fog in the bay & touching Marin hills. Foggy this morning.
9/20/2010 9/25/2010 9:00 AM 6 0.00 0.0 0.00 Left Sunday midafternoon for a week in Ukiah for work. Earlier in the day it was raining. Clearing when I left. Most of week was very nice low 80's with night temps in low 50's. A bit warmer by end of week. Each morning you could look east form door of hotel room and see the fog that forms over Lake Mendocino. Went out Tuesday after work to Montgomery Redwoods State Preserve and kept going thru Compteche (sp?) to Big River. Ate dinner and watched sunset at Van Damm State Park on coast. Almost full moon made views along Navarro River and valley great till some high clouds came in. Friday coming home it was warming up for another hot spell.



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground
3/3/2010 1:02 PM Called in spotter report @1:07pm. From spotter number SO-85. No thunder or lighting. Rain gauge showed .08 of rain came down during 6 minute downpour. Didn't get chance to enter in computer till this evening. 3/8" Rice Rice White Ice 6 no damage True After rain Same time as smaller hail