Station Overview Station Location
Station Number CA-SN-107 Latitude 38.244042
Station Name Petaluma 0.5 WNW Longitude -122.633287
County Sonoma Elevation (ft) 19



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 14 1.30 0.05 7 0.03 4 0.02 3 1 1 0 0.0 0 0
Nov 14 3.50 1.10 22 1.07 7 0.03 15 2 7 0 0.0 0 0
Dec 14 5.47 13.35 15 7.31 6 6.04 9 3 6 0 0.0 0 0
Jan 15 5.30 0.07 7 0.04 5 0.03 2 1 3 0 0.0 0 0
Feb 15 5.55 2.77 12 0.16 9 2.61 3 1 7 0 0.0 0 0
March 15 3.79 0.10 13 0.10 13 0.00 0 0 6 0 0.0 0 0
April 15 1.65 0.80 7 0.80 7 0.00 0 0 5 0 0.0 0 0
May 15 0.88 0.62 16 0.01 1 0.61 15 1 1 0 0.0 0 0
June 15 0.16 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 15 0.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 15 0.06 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 15 0.22 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 27.89" 18.86" 99 days 9.52" 52 9.34" 47 days 9 36 days 0 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
10/1/2014
10/2/2014
10/3/2014
10/4/2014
10/5/2014
10/6/2014
10/7/2014
10/8/2014
10/9/2014 0.00
10/10/2014
10/11/2014
10/12/2014
10/13/2014 0.00
10/14/2014
10/15/2014 **
10/16/2014 0.02
10/17/2014
10/18/2014
10/19/2014
10/20/2014 0.03
10/21/2014
10/22/2014
10/23/2014 0.00
10/24/2014
10/25/2014
10/26/2014
10/27/2014
10/28/2014
10/29/2014
10/30/2014
10/31/2014 **
11/1/2014 **
11/2/2014 **
11/3/2014 0.01
11/4/2014
11/5/2014
11/6/2014
11/7/2014 0.02
11/8/2014 **
11/9/2014 **
11/10/2014 0.02
11/11/2014
11/12/2014
11/13/2014 0.20
11/14/2014 0.02
11/15/2014
11/16/2014
11/17/2014 0.01
11/18/2014
11/19/2014 0.15
11/20/2014 0.26
11/21/2014 0.41
11/22/2014 **
11/23/2014 **
11/24/2014 **
11/25/2014 **
11/26/2014 **
11/27/2014 **
11/28/2014 **
11/29/2014 **
11/30/2014 **
12/1/2014 M 2.11
12/2/2014
12/3/2014 3.52
12/4/2014 0.18
12/5/2014 **
12/6/2014 **
12/7/2014 **
12/8/2014 M 0.73
12/9/2014 0.06
12/10/2014 0.02
12/11/2014 3.31
12/12/2014 **
12/13/2014 **
12/14/2014 **
12/15/2014 3.20
12/16/2014
12/17/2014
12/18/2014 0.22
12/19/2014
12/20/2014
12/21/2014
12/22/2014
12/23/2014
12/24/2014
12/25/2014
12/26/2014
12/27/2014
12/28/2014
12/29/2014
12/30/2014
12/31/2014
Day of YearDaily PrcpMultiday Prcp
1/1/2015
1/2/2015
1/3/2015
1/4/2015
1/5/2015
1/6/2015
1/7/2015 0.00
1/8/2015
1/9/2015
1/10/2015
1/11/2015
1/12/2015
1/13/2015
1/14/2015
1/15/2015
1/16/2015
1/17/2015
1/18/2015
1/19/2015
1/20/2015 **
1/21/2015 0.01 0.03
1/22/2015
1/23/2015
1/24/2015
1/25/2015
1/26/2015 0.02
1/27/2015 0.00
1/28/2015
1/29/2015 0.01
1/30/2015
1/31/2015
2/1/2015 0.01
2/2/2015 0.01
2/3/2015
2/4/2015
2/5/2015 0.00
2/6/2015
2/7/2015 **
2/8/2015 **
2/9/2015 2.61
2/10/2015
2/11/2015
2/12/2015 0.01
2/13/2015
2/14/2015
2/15/2015
2/16/2015
2/17/2015
2/18/2015 0.00
2/19/2015 0.01
2/20/2015 0.10
2/21/2015
2/22/2015
2/23/2015 0.01
2/24/2015
2/25/2015
2/26/2015
2/27/2015 0.01
2/28/2015
3/1/2015
3/2/2015 0.00
3/3/2015 0.00
3/4/2015
3/5/2015
3/6/2015
3/7/2015
3/8/2015
3/9/2015 0.00
3/10/2015 0.01
3/11/2015 0.03
3/12/2015 0.00
3/13/2015 0.00
3/14/2015
3/15/2015
3/16/2015 0.00
3/17/2015 0.02
3/18/2015 0.00
3/19/2015 0.01
3/20/2015 0.01
3/21/2015
3/22/2015
3/23/2015
3/24/2015
3/25/2015
3/26/2015
3/27/2015
3/28/2015
3/29/2015
3/30/2015
3/31/2015 0.02
Day of YearDaily PrcpMultiday Prcp
4/1/2015
4/2/2015 0.00
4/3/2015 0.00
4/4/2015
4/5/2015
4/6/2015 0.02
4/7/2015 0.62
4/8/2015 0.14
4/9/2015
4/10/2015 0.01
4/11/2015
4/12/2015
4/13/2015 0.01
4/14/2015
4/15/2015
4/16/2015
4/17/2015
4/18/2015
4/19/2015
4/20/2015
4/21/2015
4/22/2015
4/23/2015
4/24/2015
4/25/2015
4/26/2015
4/27/2015
4/28/2015
4/29/2015
4/30/2015
5/1/2015
5/2/2015
5/3/2015
5/4/2015 **
5/5/2015 **
5/6/2015 **
5/7/2015 **
5/8/2015 **
5/9/2015 **
5/10/2015 **
5/11/2015 **
5/12/2015 **
5/13/2015 **
5/14/2015 **
5/15/2015 **
5/16/2015 **
5/17/2015 **
5/18/2015 M 0.61
5/19/2015 0.01
5/20/2015
5/21/2015
5/22/2015
5/23/2015
5/24/2015
5/25/2015
5/26/2015
5/27/2015
5/28/2015
5/29/2015
5/30/2015
5/31/2015
6/1/2015 M
6/2/2015
6/3/2015
6/4/2015
6/5/2015
6/6/2015
6/7/2015
6/8/2015
6/9/2015
6/10/2015
6/11/2015
6/12/2015
6/13/2015
6/14/2015
6/15/2015
6/16/2015
6/17/2015
6/18/2015
6/19/2015
6/20/2015
6/21/2015
6/22/2015
6/23/2015
6/24/2015
6/25/2015
6/26/2015
6/27/2015
6/28/2015
6/29/2015
6/30/2015
Day of YearDaily PrcpMultiday Prcp
7/1/2015
7/2/2015
7/3/2015
7/4/2015
7/5/2015
7/6/2015
7/7/2015
7/8/2015
7/9/2015
7/10/2015
7/11/2015
7/12/2015
7/13/2015
7/14/2015
7/15/2015
7/16/2015
7/17/2015
7/18/2015
7/19/2015
7/20/2015
7/21/2015
7/22/2015
7/23/2015
7/24/2015
7/25/2015
7/26/2015
7/27/2015
7/28/2015
7/29/2015
7/30/2015
7/31/2015
8/1/2015
8/2/2015
8/3/2015
8/4/2015
8/5/2015
8/6/2015
8/7/2015
8/8/2015
8/9/2015
8/10/2015
8/11/2015
8/12/2015
8/13/2015
8/14/2015
8/15/2015
8/16/2015
8/17/2015
8/18/2015
8/19/2015
8/20/2015
8/21/2015
8/22/2015
8/23/2015
8/24/2015
8/25/2015
8/26/2015
8/27/2015
8/28/2015
8/29/2015
8/30/2015
8/31/2015
9/1/2015
9/2/2015
9/3/2015
9/4/2015
9/5/2015
9/6/2015
9/7/2015
9/8/2015
9/9/2015
9/10/2015
9/11/2015
9/12/2015
9/13/2015
9/14/2015
9/15/2015
9/16/2015
9/17/2015
9/18/2015
9/19/2015
9/20/2015
9/21/2015
9/22/2015
9/23/2015
9/24/2015
9/25/2015
9/26/2015
9/27/2015
9/28/2015
9/29/2015
9/30/2015



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/9/2014 8:00 AM 0.00 0.0 M M M
10/13/2014 8:00 AM 0.00 0.0 M M M
10/20/2014 9:00 AM 0.03 M M M M sprinkling
10/23/2014 8:00 AM 0.00 0.0 M M M
11/7/2014 8:00 AM 0.02 M M M M
11/13/2014 8:00 AM 0.20 M M M M
11/14/2014 8:00 AM 0.02 M M M M
11/17/2014 8:00 AM 0.01 M M M M
11/19/2014 8:00 AM 0.15 M M M M
11/20/2014 8:00 AM 0.26 M M M M
11/21/2014 8:00 AM 0.41 M M M M
12/1/2014 8:10 AM M M M M M Edit: Changed to multi-day
12/3/2014 8:00 AM 3.52 M M M M
12/4/2014 8:10 AM 0.18 M M M M
12/8/2014 8:15 AM M M M M M Edit: Changed to multi-day
12/9/2014 9:43 AM 0.06 M M M M
12/10/2014 8:00 AM 0.02 M M M M
12/11/2014 10:25 AM 3.31 M M M M Heavy Rain, some flooded areas on campus
12/18/2014 8:00 AM 0.22 M M M M
1/7/2015 8:00 AM 0.00 0.0 M M M
1/21/2015 8:00 AM 0.01 M M M M
1/26/2015 8:00 AM 0.02 M M M M
1/27/2015 8:00 AM 0.00 0.0 M M M
1/29/2015 8:00 AM 0.01 M M M M
2/1/2015 1:50 PM 0.01 M M M M
2/2/2015 8:00 AM 0.01 M M M M
2/5/2015 8:00 AM 0.00 0.0 M M M
2/12/2015 8:00 AM 0.01 M M M M
2/18/2015 8:00 AM 0.00 0.0 M M M
2/19/2015 8:00 AM 0.01 M M M M
2/20/2015 8:00 AM 0.10 M M M M
2/23/2015 8:00 AM 0.01 M M M M
2/27/2015 8:00 AM 0.01 M M M M
3/2/2015 8:00 AM 0.00 0.0 M M M
3/3/2015 8:00 AM 0.00 0.0 M M M
3/9/2015 8:00 AM 0.00 0.0 M M M
3/10/2015 8:00 AM 0.01 M M M M
3/11/2015 8:00 AM 0.03 M M M M
3/12/2015 8:00 AM 0.00 0.0 M M M
3/13/2015 8:00 AM 0.00 0.0 M M M
3/16/2015 8:00 AM 0.00 0.0 M M M
3/17/2015 8:00 AM 0.02 M M M M
3/18/2015 8:00 AM 0.00 0.0 M M M
3/19/2015 8:00 AM 0.01 M M M M
3/20/2015 8:00 AM 0.01 M M M M
3/31/2015 8:00 AM 0.02 M M M M
4/2/2015 8:00 AM 0.00 0.0 M M M
4/3/2015 8:00 AM 0.00 0.0 M M M
4/6/2015 8:00 AM 0.02 M M M M
4/7/2015 8:00 AM 0.62 M M M M
4/8/2015 8:00 AM 0.14 M M M M
4/10/2015 8:00 AM 0.01 M M M M
4/13/2015 8:00 AM 0.01 M M M M
5/18/2015 8:00 AM M M M M M (Edit: Observer initially recorded 0.61" of precipitation. This is anomalously high for the region. Possible multi-day report. Changed precip to NA. Observer will be contacted. M.W.)
5/19/2015 8:00 AM 0.01 M M M M
6/1/2015 8:00 AM M M M M M //edit: precip reported was 12.68. Changed to NA pending followup with observer. -SDH-



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/15/2014 10/16/2014 8:47 AM 2 0.02 M M Student noted sprinkling on Oct 15 at 10:10 am and 2:50 pm. Possible sprinkling before school; students noticed wet surfaces and "big puddles" in the morning when they arrived at school.
10/31/2014 11/03/2014 12:00 AM 4 0.01 M M
11/8/2014 11/10/2014 12:00 AM 3 0.02 M M
11/22/2014 12/01/2014 8:10 AM 10 2.11 M M
12/5/2014 12/08/2014 8:15 AM 4 0.73 M M
12/12/2014 12/15/2014 8:10 AM 4 3.20 M M
1/20/2015 1/21/2015 8:10 AM 2 0.03 M M
2/7/2015 2/09/2015 1:30 PM 3 2.61 M M
5/4/2015 5/18/2015 8:00 AM 15 0.61 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