Station Overview Station Location
Station Number CA-SA-21 Latitude 38.050067
Station Name Rio Vista 8.5 S Longitude -121.703074
County Sacramento Elevation (ft) 5



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 0.83 3.04 2 3.04 2 0.00 0 0 2 0 0.0 0 0
Nov 09 1.76 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 09 2.62 1.94 15 1.35 4 0.59 11 2 4 0 0.0 0 0
Jan 10 2.98 4.24 12 2.49 5 1.75 7 2 5 0 0.0 0 0
Feb 10 3.02 1.92 13 1.68 10 0.24 3 1 8 0 0.0 0 0
March 10 2.21 1.32 30 1.32 8 0.00 22 3 7 0 0.0 0 0
April 10 0.97 1.98 27 1.60 8 0.38 19 5 7 1 0.0 0 0
May 10 0.55 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 10 0.15 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 0.04 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 0.18 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 15.32" 14.44" 99 days 11.48" 37 2.96" 62 days 13 33 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 1.77
10/14/2009 1.27
10/15/2009
10/16/2009
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
11/7/2009
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
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009
11/24/2009
11/25/2009
11/26/2009
11/27/2009
11/28/2009
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 0.54
12/8/2009
12/9/2009
12/10/2009
12/11/2009 0.15
12/12/2009 0.50
12/13/2009
12/14/2009
12/15/2009
12/16/2009 0.16
12/17/2009
12/18/2009
12/19/2009
12/20/2009
12/21/2009 **
12/22/2009 0.08
12/23/2009 **
12/24/2009 **
12/25/2009 **
12/26/2009 **
12/27/2009 **
12/28/2009 **
12/29/2009 **
12/30/2009 **
12/31/2009 0.51
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010
1/3/2010
1/4/2010
1/5/2010
1/6/2010
1/7/2010
1/8/2010
1/9/2010
1/10/2010
1/11/2010
1/12/2010 0.10
1/13/2010
1/14/2010
1/15/2010
1/16/2010 **
1/17/2010 **
1/18/2010 0.64
1/19/2010 0.81
1/20/2010 1.16
1/21/2010 0.37
1/22/2010 **
1/23/2010 **
1/24/2010 **
1/25/2010 1.11
1/26/2010 0.05
1/27/2010
1/28/2010
1/29/2010
1/30/2010
1/31/2010
2/1/2010
2/2/2010
2/3/2010
2/4/2010
2/5/2010 0.33
2/6/2010 0.14
2/7/2010 0.13
2/8/2010 0.00
2/9/2010 0.24
2/10/2010
2/11/2010
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010 **
2/21/2010 **
2/22/2010 0.24
2/23/2010 0.11
2/24/2010 0.48
2/25/2010 0.00
2/26/2010
2/27/2010 0.21
2/28/2010 0.04
3/1/2010
3/2/2010 0.26
3/3/2010 0.31
3/4/2010 0.18
3/5/2010 0.00
3/6/2010 **
3/7/2010 **
3/8/2010 **
3/9/2010 **
3/10/2010 **
3/11/2010 0.00
3/12/2010 0.14
3/13/2010 0.29
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 0.00
3/25/2010 0.02
3/26/2010 **
3/27/2010 **
3/28/2010 **
3/29/2010 0.00
3/30/2010 0.12
3/31/2010 **
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.38
4/2/2010 **
4/3/2010 **
4/4/2010 0.00
4/5/2010 0.52
4/6/2010 **
4/7/2010 **
4/8/2010 **
4/9/2010 **
4/10/2010 0.00
4/11/2010 0.01
4/12/2010 0.64
4/13/2010 0.05
4/14/2010 **
4/15/2010 **
4/16/2010 **
4/17/2010 **
4/18/2010 **
4/19/2010 0.00
4/20/2010 0.21
4/21/2010 0.09
4/22/2010 0.08
4/23/2010 **
4/24/2010 **
4/25/2010 **
4/26/2010 0.00
4/27/2010 T
4/28/2010
4/29/2010
4/30/2010
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
5/11/2010
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010
5/18/2010
5/19/2010
5/20/2010
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010
5/27/2010
5/28/2010
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 12:00 PM 1.77 M M M M The wind has been just howling since about 6am. Currently 30+ with gusts to 40 I'm told. No major damage, just lots of small branches and leaves.
10/14/2009 12:00 PM 1.27 M M M M Rain and wind finally taped off about 5:00pm last night. No additional rain has fallen so my storm total is 3.04 inches. Still no electric yet. sigh.
12/7/2009 12:00 PM 0.54 M M M M No snow here but we can see Mt. Diablo and the surrounding hills are covered and it still has not melted as of noon!
12/11/2009 12:00 PM 0.15 M M M M Very gray and cold with a temp of 40 right now. brrr! Waiting for the next storm tomorrow.
12/12/2009 12:00 PM 0.50 M M M M intermittent rain today. breeze picked up for awhile but has settled back down again. 50 degrees. Much better than earlier in the week!
12/16/2009 12:00 PM 0.16 M M M M
1/12/2010 12:00 PM 0.10 M M M M Actually saw the sun today for the first time in a couple of weeks!! wooohoo!! So tired of the fog.
1/19/2010 12:00 PM 0.81 M M M M
1/20/2010 12:00 PM 1.16 M M M M sun finally popping through. very ugly most of the morning. power has been off and son.
1/21/2010 12:00 PM 0.37 M M M M steady rain since around 9am this morning. becoming more intense. very little wind. yeah! Many power outages here yesterday.
1/26/2010 12:00 PM 0.05 M M M M
2/5/2010 12:00 PM 0.33 M M M M beautiful sunny and breezy day until about 3:30 clouded up and had some sprinkles that turned into a decent shower about 5:00pm
2/6/2010 12:00 PM 0.14 M M M M Mostly cloudy and getting thicker looking. Very little breeze It's been in the low 50's most of the day.
2/7/2010 12:00 PM 0.13 M M M M
2/8/2010 12:00 PM 0.00 0.0 M M M Sunny and almost warm 57 degrees. Clouds are starting to thicken however.
2/9/2010 12:00 PM 0.24 M M M M It rained very hard between about 4:30-6:30 this morning. Enough to wake me up! Partly cloudy at noon. 50 degrees. No rain since about 8am.
2/23/2010 12:00 PM 0.11 M M M M Steady rain since about 10am. Just a slight breeze. Forecasted to get windy 20-30mph tonight after 10pm.
2/24/2010 12:00 PM 0.48 M M M M
2/25/2010 12:00 PM 0.00 0.0 M M M light fog and low clouds this morning. burned off to a beautiful afternoon - almost no wind whatsoever. Sounds like we need to batten the hatches again tomorrow.
2/27/2010 12:00 PM 0.21 M M M M
2/28/2010 12:00 PM 0.04 M M M M
3/2/2010 12:00 PM 0.26 M M M M rain recently stopped. Chilly (52) and breezy. Mostly cloudy.
3/3/2010 12:00 PM 0.31 M M M M The rain ended around 10am. Now a mix of clouds and sun. Looks rather ominous to the south. Wonder if we'll get the t-strms that were previously advertised?
3/4/2010 12:00 PM 0.18 M M M M This includes the .11 i reported in the significant weather event.
3/5/2010 12:00 PM 0.00 0.0 M M M Nice day today. Chilly but we did have SUN, SUN, SUN! Hopefully we'll have a few dry days. The ground is absoutely saturated at this point.
3/12/2010 12:00 PM 0.14 M M M M
3/13/2010 12:00 PM 0.29 M M M M
3/25/2010 12:00 PM 0.02 M M M M
3/30/2010 12:00 PM 0.12 M M M M Certainly was not as strong as advertised. Partly Cloudy and breezy today. We'll see if we get any t-strms.
4/5/2010 12:00 PM 0.52 M M M M rain did not start in earnest until about 4pm. Then is was steady until about 10pm.
4/11/2010 12:00 PM 0.01 M M M M Rain started shortly after 11am. Fairly light so far. Quite breezy and overcast.
4/12/2010 12:00 PM 0.64 M M M M Picked up .56 when the rain stopped yesterday afternoon about 5pm. Got the balance last night and this morning. Currently raining steady.
4/13/2010 12:00 PM 0.05 M M M M
4/20/2010 12:00 PM 0.21 M M M M Partly cloudy and breezy. About 54 degrees. Hoping to get a t-boomer later today!
4/21/2010 12:00 PM 0.09 M M M M
4/22/2010 12:00 PM 0.08 M M M M Had .09 in the gauge at noon yesterday. Got the balance yesterday afternoon between noon and 5pm. By 6pm is was nice and sunny again. Today is sunny but a little chilly - currently 58.
4/27/2010 12:00 PM T M M M M Windy and threatening skies. not much yet in the rain dept. just a trace at noon. did get a breaf shower about 12:30pm.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
12/21/2009 12/22/2009 11:55 AM 2 0.08 M M The gray has gone away. Bright sunshine and breezy. 50 at noon but it feels colder.
12/23/2009 12/31/2009 12:00 PM 9 0.51 M M
1/16/2010 1/18/2010 12:00 PM 3 0.64 M M Nasty day today. Rain has slowed down some. So has the wind. Hope we're past the worst of it.
1/22/2010 1/25/2010 12:00 PM 4 1.11 M M
2/20/2010 2/22/2010 12:00 PM 3 0.24 M M
3/6/2010 3/11/2010 12:00 PM 6 0.00 M M
3/14/2010 3/24/2010 12:00 PM 11 0.00 M M
3/26/2010 3/29/2010 12:00 PM 4 0.00 M M
3/31/2010 4/01/2010 12:00 PM 2 0.38 M M
4/2/2010 4/04/2010 12:00 PM 3 0.00 M M
4/6/2010 4/10/2010 12:00 AM 5 0.00 M M Waiting on the next storm. Very breezy morning through afternoon. Very cloudy and dark skies until about 4pm where it did break up and we got some sunshine. It's been about 60 degrees all day (9am-7pm). Wind advisory is back up. We shall wait and see!
4/14/2010 4/19/2010 12:00 PM 6 0.00 M M Getting ready for the next little storm. It was a fairly pleasant morning. Partly Cloudy. At noon the wind picked up noticebly and it's become mostly overcast.
4/23/2010 4/26/2010 12:00 AM 4 0.00 M M



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 3:15 PM I don't have a hail pad. We do not get hail very often. 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Hard|Clear Ice 10 3min no damage Continuous True After rain Same time as smaller hail