Station Overview Station Location
Station Number CA-SN-55 Latitude 38.289952
Station Name Sonoma 1.9 E Longitude -122.424944
County Sonoma Elevation (ft) 124



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 1.64 3.79 4 3.79 4 0.00 0 0 4 0 0.0 0 0
Nov 09 3.70 0.94 6 0.94 6 0.00 0 0 6 0 0.0 0 0
Dec 09 5.78 2.51 11 2.51 11 0.00 0 0 11 0 0.0 0 0
Jan 10 6.14 9.91 19 9.91 19 0.00 0 0 17 0 0.0 0 0
Feb 10 6.11 4.93 16 4.93 16 0.00 0 0 14 1 0.0 0 0
March 10 4.47 3.51 9 3.51 9 0.00 0 0 9 0 0.0 0 0
April 10 1.88 4.75 13 4.75 13 0.00 0 0 12 0 0.0 0 0
May 10 1.11 2.28 9 2.28 9 0.00 0 0 8 0 0.0 0 0
June 10 0.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 10 0.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 10 0.09 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 0.23 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 31.36" 32.62" 87 days 32.62" 87 0.00" 0 days 0 81 days 1 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
10/2/2009
10/3/2009
10/4/2009
10/5/2009
10/6/2009
10/7/2009
10/8/2009
10/9/2009
10/10/2009
10/11/2009
10/12/2009
10/13/2009 1.02
10/14/2009 2.68
10/15/2009 0.06
10/16/2009 0.03
10/17/2009
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009
10/27/2009
10/28/2009
10/29/2009
10/30/2009
10/31/2009
11/1/2009
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009 0.10
11/7/2009 0.18
11/8/2009
11/9/2009
11/10/2009
11/11/2009
11/12/2009
11/13/2009
11/14/2009
11/15/2009
11/16/2009
11/17/2009
11/18/2009 0.09
11/19/2009
11/20/2009
11/21/2009 0.37
11/22/2009 0.07
11/23/2009
11/24/2009
11/25/2009
11/26/2009
11/27/2009
11/28/2009 0.13
11/29/2009
11/30/2009
12/1/2009
12/2/2009
12/3/2009
12/4/2009
12/5/2009
12/6/2009
12/7/2009 0.13
12/8/2009
12/9/2009
12/10/2009
12/11/2009 0.05
12/12/2009 0.37
12/13/2009 0.78
12/14/2009 0.05
12/15/2009
12/16/2009 0.42
12/17/2009 0.03
12/18/2009
12/19/2009
12/20/2009
12/21/2009 0.12
12/22/2009 0.12
12/23/2009
12/24/2009
12/25/2009
12/26/2009
12/27/2009 0.16
12/28/2009
12/29/2009
12/30/2009 0.28
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010 0.16
1/3/2010 0.02
1/4/2010
1/5/2010
1/6/2010
1/7/2010
1/8/2010
1/9/2010 0.03
1/10/2010 0.02
1/11/2010
1/12/2010 0.36
1/13/2010 0.45
1/14/2010 0.02
1/15/2010
1/16/2010
1/17/2010
1/18/2010
1/19/2010 2.91
1/20/2010 1.82
1/21/2010 1.21
1/22/2010 0.99
1/23/2010 0.38
1/24/2010 0.11
1/25/2010 0.52
1/26/2010 0.53
1/27/2010 0.07
1/28/2010 0.00
1/29/2010
1/30/2010 0.31
1/31/2010 0.00
2/1/2010 0.03
2/2/2010
2/3/2010 0.05
2/4/2010
2/5/2010 0.95
2/6/2010 0.43
2/7/2010 0.36
2/8/2010
2/9/2010 0.47
2/10/2010 0.02
2/11/2010 0.00
2/12/2010 0.08
2/13/2010 0.07
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010 T
2/22/2010 0.09
2/23/2010
2/24/2010 1.31
2/25/2010 0.03
2/26/2010
2/27/2010 1.01
2/28/2010 0.03
3/1/2010
3/2/2010 0.45
3/3/2010 0.71
3/4/2010 0.55
3/5/2010
3/6/2010
3/7/2010
3/8/2010
3/9/2010 0.03
3/10/2010 0.21
3/11/2010
3/12/2010
3/13/2010 0.48
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010
3/24/2010
3/25/2010 0.65
3/26/2010
3/27/2010
3/28/2010
3/29/2010
3/30/2010 0.17
3/31/2010 0.26
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.22
4/2/2010
4/3/2010 0.62
4/4/2010
4/5/2010 0.77
4/6/2010
4/7/2010
4/8/2010
4/9/2010
4/10/2010
4/11/2010 0.07
4/12/2010 2.07
4/13/2010 0.36
4/14/2010
4/15/2010
4/16/2010
4/17/2010
4/18/2010
4/19/2010
4/20/2010 0.25
4/21/2010 0.05
4/22/2010 0.05
4/23/2010
4/24/2010
4/25/2010
4/26/2010
4/27/2010 0.09
4/28/2010 0.11
4/29/2010 0.09
4/30/2010 0.00
5/1/2010
5/2/2010
5/3/2010
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010
5/10/2010 0.24
5/11/2010 0.19
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010 0.00
5/18/2010 0.35
5/19/2010
5/20/2010 0.05
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010 0.02
5/26/2010 0.23
5/27/2010 0.11
5/28/2010 1.09
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010
6/5/2010
6/6/2010
6/7/2010
6/8/2010
6/9/2010
6/10/2010
6/11/2010
6/12/2010
6/13/2010
6/14/2010
6/15/2010
6/16/2010
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010
6/23/2010
6/24/2010
6/25/2010
6/26/2010
6/27/2010
6/28/2010
6/29/2010
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010
7/11/2010
7/12/2010
7/13/2010
7/14/2010
7/15/2010
7/16/2010
7/17/2010
7/18/2010
7/19/2010
7/20/2010
7/21/2010
7/22/2010
7/23/2010
7/24/2010
7/25/2010
7/26/2010
7/27/2010
7/28/2010
7/29/2010
7/30/2010
7/31/2010
8/1/2010
8/2/2010
8/3/2010
8/4/2010
8/5/2010
8/6/2010
8/7/2010
8/8/2010
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010
9/5/2010
9/6/2010
9/7/2010
9/8/2010
9/9/2010
9/10/2010
9/11/2010
9/12/2010
9/13/2010
9/14/2010
9/15/2010
9/16/2010
9/17/2010
9/18/2010
9/19/2010
9/20/2010
9/21/2010
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010
9/28/2010
9/29/2010
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/13/2009 8:00 AM 1.02 M M M M WOW....it is pouring.......will check my guage again in a few hours....reports had called for winds up to 60 miles but so far there is very little wind...rain should soak in as ground is pretty dry
10/14/2009 8:00 AM 2.68 M M M M rain finally started trapering down about 4 PM yesterday......high clouds/fog this am but not sure if that means more rain.....
10/15/2009 8:00 AM 0.06 M M M M weather forcasts call for clearing today & bit warmer
10/16/2009 8:00 AM 0.03 M M M M just a bit of a drizzle yesterday, sun came out & it has been quite humid.....no rain forcast for at least a week.....I'm leaving for vacation 10/19 & will return 10/29 sooo will report any precipitation then.
11/6/2009 8:00 AM 0.10 M M M M
11/7/2009 8:00 AM 0.18 M M M M sun is out but it is cool....had a power outage from yesterday till about 8:30 this AM but it was not weather related......
11/18/2009 8:00 AM 0.09 M M M M rain over.......bright, sunny, cold.....38 degrees this am at 7:30.......
11/21/2009 8:00 AM 0.37 M M M M cold with light frost this am.......more rain forcast for tomorrow am.......
11/22/2009 8:00 AM 0.07 M M M M was out of town for a couple of days so this is actually for 11/21 & ll/22
11/28/2009 8:00 AM 0.13 M M M M I'm late reporting....was out of town for the holiday
12/7/2009 8:00 AM 0.13 M M M M foggy & cold...more rain forcasted for the rest of the week.......
12/11/2009 8:00 AM 0.05 M M M M
12/12/2009 8:00 AM 0.37 M M M M
12/13/2009 8:00 AM 0.78 M M M M lots of rain although ground was dry enough that it absorbed most of it.....very little standing water...forecast calls for more today
12/14/2009 8:00 AM 0.05 M M M M
12/16/2009 8:00 AM 0.42 M M M M
12/17/2009 8:00 AM 0.03 M M M M
12/21/2009 8:00 AM 0.12 M M M M
12/22/2009 8:00 AM 0.12 M M M M sorry I'm a bit late this am.......beautiful frosty & sunny.....
12/27/2009 8:00 AM 0.16 M M M M
12/30/2009 8:00 AM 0.28 M M M M cool, foggy.....more rain in the forcast....
1/2/2010 8:00 AM 0.16 M M M M not much rain but better than nothing....quite foggy this am......forcast calls for dry weather the next few days.......
1/3/2010 8:00 AM 0.02 M M M M sorry I'm late, could not get on line this am.....sunny but cool, 46 degrees at this time (1:30) no rain in forcast
1/9/2010 8:00 AM 0.03 M M M M
1/10/2010 8:00 AM 0.02 M M M M
1/12/2010 8:00 AM 0.36 M M M M
1/13/2010 8:00 AM 0.45 M M M M
1/14/2010 8:00 AM 0.02 M M M M cold early this am (32 at 7 am) bright & sunny though, the fog is a bit tiresome....
1/19/2010 8:00 AM 2.91 M M M M been out of town a few days.......this report covers Jan. 17, 18 & 19th...good to see rain again...drove home from Pismo Beach yesterday & we had lots of weather till Salinas, strong winds & heavy rain
1/20/2010 8:00 AM 1.82 M M M M starting to get some runoff, ditches are full & creeping into the street, it looks like steady rain will continue for several hours..
1/21/2010 8:00 AM 1.21 M M M M more rain forcast for today but not the strong winds we've had...trees down, flooding, power outages, roads closed....this will certainly help our drought but we still have a way to go.....
1/22/2010 8:00 AM 0.99 M M M M no rain this morning...forcast calls for showers today & clearing Sat. & Sun. with rain returning on Mon...
1/23/2010 8:00 AM 0.38 M M M M raining right now, but is supposed to clear & be dry & then more again tomorrow
1/24/2010 8:00 AM 0.11 M M M M
1/25/2010 8:00 AM 0.52 M M M M
1/26/2010 8:00 AM 0.53 M M M M high fog this am...forcast calls for more rain today, clearing Wed., Thurs., Fri. & then maybe rain returning Saturday.....our resivours are filling!
1/27/2010 8:00 AM 0.07 M M M M
1/28/2010 8:00 AM 0.00 0.0 M M M high fog this am.....we had sun yesterday afternoon so I expect we will see it later today
1/30/2010 8:00 AM 0.31 M M M M rain started yesterday about 4 PM...patchy high fog this morning with sunshine......possible showers today...
1/31/2010 8:00 AM 0.00 0.0 M M M lots of heavy, low fog this...no rain forcast for today but maybe late tomorrow...at this point sunshine would be a welcome break......
2/1/2010 8:00 AM 0.03 M M M M looks like a pleasant day...high fog with sun trying to peak....should have rain this PM.....
2/3/2010 9:00 AM 0.05 M M M M I'm a bit late this morning.....some rain during the night & this am...forecast calls for heavy Thursday & Friday.......
2/5/2010 8:00 AM 0.95 M M M M sorry I'm soo late......computer has been down
2/6/2010 8:00 AM 0.43 M M M M computer has been down but I'm up & running again...it has rained off & on all day so should have a sugnificate amount to report tomorrow morning......
2/7/2010 8:00 AM 0.36 M M M M beautiful morning....sun shining & not a cloud in sight.......
2/9/2010 8:00 AM 0.47 M M M M
2/10/2010 8:00 AM 0.02 M M M M frosty morning! bright sunshine, no clouds, beautiful day.......
2/11/2010 8:00 AM 0.00 0.0 M M M storm forcast for tonight.....
2/12/2010 8:00 AM 0.08 M M M M
2/13/2010 8:00 AM 0.07 M M M M
2/21/2010 8:00 AM T M M M M just a trace this morning, but hope more is on the way...
2/22/2010 8:00 AM 0.09 M M M M
2/24/2010 8:00 AM 1.31 M M M M supposed to have more rain today...right now it is foggy & some very light mist......
2/25/2010 8:00 AM 0.03 M M M M
2/27/2010 8:00 AM 1.01 M M M M just a trace yesterday AM......then just a bit before 2 PM it poured & wind blew till about 3 PM...we got most of rain during that period.....
2/28/2010 8:00 AM 0.03 M M M M
3/2/2010 8:00 AM 0.45 M M M M it is POURING!!!!
3/3/2010 8:00 AM 0.71 M M M M a glimmer of sun....forcast calls for more rain today with a possibility of hail & thunder.......
3/4/2010 8:00 AM 0.55 M M M M we had a pretty good hail storm yesterday about 2 PM, no thunder but some strong wind......frosty this AM
3/9/2010 8:00 AM 0.03 M M M M frost this AM......vinyards had their wind machines running early today
3/10/2010 8:00 AM 0.21 M M M M frost again this am....supposed to have warming trend the next few days.....
3/13/2010 8:00 AM 0.48 M M M M Burrr....it was quite frosty this AM...wind machines were running in the vineyards....supposed to have a warming trend next week...it is wonderful to see sunshine!
3/25/2010 8:00 AM 0.65 M M M M
3/30/2010 8:00 AM 0.17 M M M M
3/31/2010 8:00 AM 0.26 M M M M
4/1/2010 8:00 AM 0.22 M M M M
4/3/2010 8:00 AM 0.62 M M M M quite cool this morning......forcast calls for cool temps, wind & more rain tomorrow
4/5/2010 8:00 AM 0.77 M M M M WOW! April is sure water logged....beautiful day, cool temps, lots of sun & not a cloud in sight......
4/11/2010 8:00 AM 0.07 M M M M read my guage at 8 AM, rain was coming down lightly, no sooner got inside & it poured & has been steady since....should have a goodly amount tomorrow
4/12/2010 8:00 AM 2.07 M M M M WOW! lots of rain yesterday & some wind.....had a little respite about 4 PM & then more showers on & off during the evening....forcast calls for more rain on & off through today.
4/13/2010 8:00 AM 0.36 M M M M light frost this morning but sun is bright & not a cloud in sight, a welcome respit from the past 3 days...
4/20/2010 8:00 AM 0.25 M M M M gray day with more rain forecast for today...worked in my garden Sat & Sun & can't believe the change in temps....Sun it was 81 degrees & yesterday had dropped about 15 degrees.....
4/21/2010 8:00 AM 0.05 M M M M quite cold & windy this morning....forecast calls for more rain today & then clearing the rest of the week..
4/22/2010 8:00 AM 0.05 M M M M beautiful day, no wind & looks like we are heading for a warming trend......
4/27/2010 8:00 AM 0.09 M M M M drizzly morning....rain forecast for much of the day...weather news reported last evening that all North Bay Counties have above average rainfall & the year doesn't end till June 30th, good news on that front.......
4/28/2010 8:00 AM 0.11 M M M M
4/29/2010 8:00 AM 0.09 M M M M
4/30/2010 8:00 AM 0.00 0.0 M M M sorry I'm reporting so late but was out very early...had just a trace to report...about 5:45 PM yesterday the heavens opened & rain come down heavy for about 20 seconds......interesting....lot of wind today....
5/10/2010 8:00 AM 0.24 M M M M more rain forecast for today......
5/11/2010 8:00 AM 0.19 M M M M beautiful morning, sun shining & not a cloud in sight..had a bit of frost, wind machines are running keeping the vineyard safe from damage to the grapes.....
5/17/2010 8:00 AM 0.00 0.0 M M M forecast had called for a wet comute this AM but it is dry......cold & cloudy so maybe some rain later...
5/18/2010 8:00 AM 0.35 M M M M rain started about 10 AM yesterday & was fairly steady all day, a few breaks now & then....it was bright & sunny this morning but is gradually clouding up, maybe more to come.....
5/20/2010 8:00 AM 0.05 M M M M looks like we are going to have more rain periodicall for the next..cool & brezzy today.....seems like spring has passed us by......
5/25/2010 8:00 AM 0.02 M M M M more like heavy mist than rain....been unseasonably cold & windy the past 3 days....forecast calls for rain through Friday......
5/26/2010 8:00 AM 0.23 M M M M steady rain yesterday starting about noon till evening...more forecast for today although it is sunny now.......
5/27/2010 8:00 AM 0.11 M M M M wet & cool.....forecast calls for more rain today & clearing tomorrow with warmer temps....
5/28/2010 7:00 AM 1.09 M M M M wow! what & wild day......recorded .68 rain between 8 & 10 AM....beautiful sunny morning......



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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