Station Overview Station Location
Station Number CA-CC-19 Latitude 37.915959
Station Name Walnut Creek 1.4 NE Longitude -122.023194
County Contra Costa Elevation (ft) 156



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 11 1.08 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 11 2.51 0.37 6 0.37 6 0.00 0 0 5 0 0.0 0 0
Dec 11 3.83 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 12 4.06 2.77 7 2.76 5 0.01 2 1 5 0 0.0 0 0
Feb 12 4.03 1.07 5 1.07 5 0.00 0 0 3 0 0.0 0 0
March 12 2.90 4.40 13 2.76 9 1.64 4 2 8 0 0.0 0 0
April 12 1.20 4.04 8 4.03 6 0.01 2 1 6 0 0.0 0 0
May 12 0.76 0.08 1 0.08 1 0.00 0 0 1 0 0.0 0 0
June 12 0.13 0.05 1 0.05 1 0.00 0 0 1 0 0.0 0 0
July 12 0.02 0.02 1 0.02 1 0.00 0 0 1 0 0.0 0 0
Aug 12 0.06 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 12 0.15 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 20.73" 12.80" 42 days 11.14" 34 1.66" 8 days 4 30 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
10/1/2011
10/2/2011
10/3/2011
10/4/2011
10/5/2011
10/6/2011
10/7/2011
10/8/2011
10/9/2011
10/10/2011
10/11/2011
10/12/2011
10/13/2011
10/14/2011
10/15/2011
10/16/2011
10/17/2011
10/18/2011
10/19/2011
10/20/2011
10/21/2011
10/22/2011
10/23/2011
10/24/2011
10/25/2011
10/26/2011
10/27/2011
10/28/2011
10/29/2011
10/30/2011
10/31/2011
11/1/2011
11/2/2011
11/3/2011
11/4/2011 0.05
11/5/2011
11/6/2011
11/7/2011
11/8/2011
11/9/2011
11/10/2011
11/11/2011
11/12/2011 0.09
11/13/2011
11/14/2011
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011 0.10
11/20/2011
11/21/2011
11/22/2011
11/23/2011
11/24/2011 0.11
11/25/2011 0.02
11/26/2011 0.00
11/27/2011
11/28/2011
11/29/2011
11/30/2011
12/1/2011
12/2/2011
12/3/2011
12/4/2011
12/5/2011
12/6/2011
12/7/2011
12/8/2011
12/9/2011
12/10/2011
12/11/2011
12/12/2011
12/13/2011
12/14/2011
12/15/2011
12/16/2011
12/17/2011
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011
12/23/2011
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012
1/7/2012
1/8/2012
1/9/2012
1/10/2012
1/11/2012
1/12/2012
1/13/2012
1/14/2012
1/15/2012
1/16/2012
1/17/2012
1/18/2012
1/19/2012
1/20/2012 0.15
1/21/2012 1.75
1/22/2012 0.02
1/23/2012 0.81
1/24/2012 0.03
1/25/2012 **
1/26/2012 0.01
1/27/2012
1/28/2012
1/29/2012
1/30/2012
1/31/2012
2/1/2012 0.00
2/2/2012
2/3/2012
2/4/2012
2/5/2012
2/6/2012
2/7/2012 0.43
2/8/2012
2/9/2012
2/10/2012
2/11/2012 0.00
2/12/2012
2/13/2012 0.04
2/14/2012
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012
2/21/2012
2/22/2012
2/23/2012
2/24/2012
2/25/2012
2/26/2012
2/27/2012
2/28/2012
2/29/2012 0.60
3/1/2012 0.13
3/2/2012 0.29
3/3/2012 0.00
3/4/2012
3/5/2012
3/6/2012
3/7/2012
3/8/2012
3/9/2012
3/10/2012
3/11/2012
3/12/2012
3/13/2012 0.25
3/14/2012 0.68
3/15/2012 0.41
3/16/2012 0.04
3/17/2012 0.93
3/18/2012 0.03
3/19/2012
3/20/2012
3/21/2012
3/22/2012
3/23/2012
3/24/2012 **
3/25/2012 0.84
3/26/2012
3/27/2012 **
3/28/2012 0.80
3/29/2012
3/30/2012
3/31/2012
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.58
4/2/2012
4/3/2012
4/4/2012 0.02
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012
4/10/2012 0.33
4/11/2012 0.59
4/12/2012 0.78
4/13/2012 1.73
4/14/2012 **
4/15/2012 0.01
4/16/2012
4/17/2012
4/18/2012
4/19/2012
4/20/2012
4/21/2012
4/22/2012
4/23/2012
4/24/2012
4/25/2012
4/26/2012
4/27/2012
4/28/2012
4/29/2012
4/30/2012
5/1/2012
5/2/2012
5/3/2012
5/4/2012
5/5/2012
5/6/2012
5/7/2012
5/8/2012
5/9/2012
5/10/2012
5/11/2012
5/12/2012
5/13/2012
5/14/2012
5/15/2012
5/16/2012
5/17/2012
5/18/2012
5/19/2012
5/20/2012
5/21/2012
5/22/2012
5/23/2012
5/24/2012
5/25/2012
5/26/2012 0.08
5/27/2012
5/28/2012
5/29/2012
5/30/2012
5/31/2012
6/1/2012
6/2/2012
6/3/2012
6/4/2012
6/5/2012 0.05
6/6/2012
6/7/2012
6/8/2012
6/9/2012
6/10/2012
6/11/2012
6/12/2012
6/13/2012
6/14/2012
6/15/2012
6/16/2012
6/17/2012
6/18/2012
6/19/2012
6/20/2012
6/21/2012
6/22/2012
6/23/2012
6/24/2012
6/25/2012
6/26/2012
6/27/2012
6/28/2012
6/29/2012
6/30/2012
Day of YearDaily PrcpMultiday Prcp
7/1/2012
7/2/2012
7/3/2012
7/4/2012
7/5/2012
7/6/2012
7/7/2012
7/8/2012
7/9/2012
7/10/2012
7/11/2012
7/12/2012
7/13/2012
7/14/2012
7/15/2012
7/16/2012
7/17/2012 0.02
7/18/2012
7/19/2012
7/20/2012
7/21/2012
7/22/2012
7/23/2012
7/24/2012
7/25/2012
7/26/2012
7/27/2012
7/28/2012
7/29/2012
7/30/2012
7/31/2012
8/1/2012
8/2/2012
8/3/2012
8/4/2012
8/5/2012
8/6/2012
8/7/2012
8/8/2012
8/9/2012
8/10/2012
8/11/2012
8/12/2012
8/13/2012
8/14/2012
8/15/2012
8/16/2012
8/17/2012
8/18/2012
8/19/2012
8/20/2012
8/21/2012
8/22/2012
8/23/2012
8/24/2012
8/25/2012
8/26/2012
8/27/2012
8/28/2012
8/29/2012
8/30/2012
8/31/2012
9/1/2012
9/2/2012
9/3/2012
9/4/2012
9/5/2012
9/6/2012
9/7/2012
9/8/2012
9/9/2012
9/10/2012
9/11/2012
9/12/2012
9/13/2012
9/14/2012
9/15/2012
9/16/2012
9/17/2012
9/18/2012
9/19/2012
9/20/2012
9/21/2012
9/22/2012
9/23/2012
9/24/2012
9/25/2012
9/26/2012
9/27/2012
9/28/2012
9/29/2012
9/30/2012



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
11/4/2011 7:15 AM 0.05 M M M M
11/12/2011 7:15 AM 0.09 M M M M
11/19/2011 7:15 AM 0.10 M M M M
11/24/2011 7:15 AM 0.11 M M M M
11/25/2011 7:15 AM 0.02 M M M M
11/26/2011 7:15 AM 0.00 0.0 M M M
1/20/2012 8:15 AM 0.15 M M M M
1/21/2012 7:15 AM 1.75 M M M M
1/22/2012 7:15 AM 0.02 M M M M
1/23/2012 9:00 AM 0.81 M M M M
1/24/2012 8:00 AM 0.03 M M M M
2/1/2012 7:15 AM 0.00 0.0 M M M
2/7/2012 8:45 AM 0.43 M M M M
2/11/2012 8:15 AM 0.00 0.0 M M M
2/13/2012 8:00 AM 0.04 M M M M
2/29/2012 8:00 AM 0.60 M M M M
3/1/2012 8:00 AM 0.13 M M M M
3/2/2012 7:15 AM 0.29 M M M M
3/3/2012 7:15 AM 0.00 0.0 M M M
3/13/2012 7:15 AM 0.25 M M M M
3/14/2012 7:15 AM 0.68 M M M M
3/15/2012 7:30 AM 0.41 M M M M
3/16/2012 7:30 AM 0.04 M M M M
3/17/2012 8:00 AM 0.93 M M M M
3/18/2012 7:15 AM 0.03 M M M M
4/1/2012 7:15 AM 0.58 M M M M
4/4/2012 7:15 AM 0.02 M M M M
4/10/2012 9:55 AM 0.33 M M M M
4/11/2012 8:45 AM 0.59 M M M M
4/12/2012 8:30 AM 0.78 M M M M
4/13/2012 12:30 PM 1.73 M M M M Hail storm at 12:30PM Friday April 13, 2012 lasting several minutes - pea size hail. Remains on the roof 15 min later.
5/26/2012 7:15 AM 0.08 M M M M
6/5/2012 7:15 AM 0.05 M M M M Rain began at 10 AM
7/17/2012 8:15 AM 0.02 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
1/25/2012 1/26/2012 9:00 AM 2 0.01 M M
3/24/2012 3/25/2012 8:00 AM 2 0.84 M M
3/27/2012 3/28/2012 8:00 AM 2 0.80 M M
4/14/2012 4/15/2012 8:00 AM 2 0.01 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
4/13/2012 12:30 PM NA NA 1/4" Pea Size Hard|White Ice 5 3min no damage Intermittent False After rain After smaller hail 10-20