Station Overview Station Location
Station Number CA-SM-18 Latitude 37.5085
Station Name El Granada 0.7 W Longitude -122.47895
County San Mateo Elevation (ft) 78



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 15 1.51 0.21 8 0.21 8 0.00 0 0 5 3 0.0 0 0
Nov 15 3.20 1.87 9 1.87 9 0.00 0 0 7 1 0.0 0 0
Dec 15 5.20 5.04 16 5.04 16 0.00 0 0 16 0 0.0 0 0
Jan 16 5.62 6.19 20 6.19 20 0.00 0 0 18 2 0.0 0 0
Feb 16 5.23 1.04 7 1.04 7 0.00 0 0 5 2 0.0 0 0
March 16 3.99 6.58 31 6.58 31 0.00 0 0 14 2 0.0 0 0
April 16 1.79 1.16 16 1.16 16 0.00 0 0 8 1 0.0 0 0
May 16 1.03 0.07 5 0.07 5 0.00 0 0 2 3 0.0 0 0
June 16 0.28 0.04 5 0.04 5 0.00 0 0 4 1 0.0 0 0
July 16 0.10 0.21 10 0.21 10 0.00 0 0 7 3 0.0 0 0
Aug 16 0.19 0.14 11 0.08 8 0.06 3 1 5 3 0.0 0 0
Sept 16 0.34 0.00 2 0.00 2 0.00 0 0 0 2 0.0 0 0
Water Year Totals: 28.48" 22.55" 140 days 22.49" 137 0.06" 3 days 1 91 days 23 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
10/1/2015 0.03
10/2/2015 0.01
10/3/2015
10/4/2015
10/5/2015
10/6/2015
10/7/2015
10/8/2015
10/9/2015
10/10/2015 T
10/11/2015 T
10/12/2015
10/13/2015
10/14/2015
10/15/2015
10/16/2015
10/17/2015
10/18/2015 0.01
10/19/2015 0.15
10/20/2015
10/21/2015
10/22/2015
10/23/2015
10/24/2015
10/25/2015
10/26/2015 T
10/27/2015
10/28/2015 0.01
10/29/2015
10/30/2015
10/31/2015
11/1/2015 0.02
11/2/2015 0.35
11/3/2015 0.30
11/4/2015
11/5/2015
11/6/2015
11/7/2015
11/8/2015 0.00
11/9/2015 0.03
11/10/2015 0.51
11/11/2015
11/12/2015
11/13/2015
11/14/2015
11/15/2015 0.54
11/16/2015
11/17/2015
11/18/2015
11/19/2015
11/20/2015
11/21/2015
11/22/2015
11/23/2015 T
11/24/2015
11/25/2015 0.12
11/26/2015
11/27/2015
11/28/2015
11/29/2015
11/30/2015
12/1/2015 0.01
12/2/2015
12/3/2015
12/4/2015 0.39
12/5/2015
12/6/2015
12/7/2015 0.21
12/8/2015
12/9/2015
12/10/2015 0.32
12/11/2015 0.23
12/12/2015 0.03
12/13/2015 0.20
12/14/2015 0.22
12/15/2015
12/16/2015
12/17/2015
12/18/2015
12/19/2015 0.61
12/20/2015
12/21/2015 1.48
12/22/2015 0.83
12/23/2015 0.15
12/24/2015 0.13
12/25/2015 0.16
12/26/2015
12/27/2015
12/28/2015 0.06
12/29/2015
12/30/2015
12/31/2015 0.01
Day of YearDaily PrcpMultiday Prcp
1/1/2016
1/2/2016
1/3/2016
1/4/2016 0.12
1/5/2016 0.81
1/6/2016 0.99
1/7/2016 0.34
1/8/2016 T
1/9/2016 0.03
1/10/2016
1/11/2016 T
1/12/2016
1/13/2016 0.27
1/14/2016 0.01
1/15/2016 0.17
1/16/2016 0.25
1/17/2016 0.05
1/18/2016 1.23
1/19/2016 0.58
1/20/2016 0.57
1/21/2016
1/22/2016 0.17
1/23/2016 0.11
1/24/2016 0.15
1/25/2016
1/26/2016
1/27/2016
1/28/2016
1/29/2016 0.06
1/30/2016 0.28
1/31/2016
2/1/2016
2/2/2016 0.18
2/3/2016 0.16
2/4/2016
2/5/2016
2/6/2016
2/7/2016
2/8/2016
2/9/2016
2/10/2016
2/11/2016
2/12/2016
2/13/2016
2/14/2016
2/15/2016
2/16/2016
2/17/2016
2/18/2016 0.58
2/19/2016
2/20/2016 0.09
2/21/2016
2/22/2016
2/23/2016
2/24/2016
2/25/2016
2/26/2016 T
2/27/2016 0.03
2/28/2016
2/29/2016 T
3/1/2016 0.00
3/2/2016 0.00
3/3/2016 0.02
3/4/2016 0.21
3/5/2016 0.29
3/6/2016 1.56
3/7/2016 0.98
3/8/2016 0.12
3/9/2016 0.14
3/10/2016 0.13
3/11/2016 1.14
3/12/2016 0.34
3/13/2016 0.68
3/14/2016 0.56
3/15/2016 0.00
3/16/2016 0.00
3/17/2016 0.00
3/18/2016 T
3/19/2016 T
3/20/2016 0.00
3/21/2016 0.34
3/22/2016 0.07
3/23/2016 0.00
3/24/2016 0.00
3/25/2016 0.00
3/26/2016 0.00
3/27/2016 0.00
3/28/2016 0.00
3/29/2016 0.00
3/30/2016 0.00
3/31/2016 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2016 0.00
4/2/2016 0.00
4/3/2016 0.00
4/4/2016 0.01
4/5/2016 0.00
4/6/2016 0.00
4/7/2016 0.00
4/8/2016 0.00
4/9/2016 0.43
4/10/2016 0.23
4/11/2016 0.01
4/12/2016
4/13/2016
4/14/2016 0.19
4/15/2016
4/16/2016
4/17/2016
4/18/2016
4/19/2016
4/20/2016
4/21/2016 T
4/22/2016 0.10
4/23/2016 0.07
4/24/2016
4/25/2016
4/26/2016
4/27/2016
4/28/2016 0.12
4/29/2016
4/30/2016
5/1/2016
5/2/2016
5/3/2016
5/4/2016
5/5/2016
5/6/2016
5/7/2016 0.05
5/8/2016 0.02
5/9/2016
5/10/2016
5/11/2016
5/12/2016
5/13/2016
5/14/2016
5/15/2016
5/16/2016
5/17/2016
5/18/2016
5/19/2016
5/20/2016
5/21/2016
5/22/2016
5/23/2016
5/24/2016 T
5/25/2016 T
5/26/2016
5/27/2016
5/28/2016
5/29/2016
5/30/2016
5/31/2016 T
6/1/2016
6/2/2016 0.01
6/3/2016
6/4/2016
6/5/2016
6/6/2016 0.01
6/7/2016 0.01
6/8/2016 T
6/9/2016 0.01
6/10/2016
6/11/2016
6/12/2016
6/13/2016
6/14/2016
6/15/2016
6/16/2016
6/17/2016
6/18/2016
6/19/2016
6/20/2016
6/21/2016
6/22/2016
6/23/2016
6/24/2016
6/25/2016
6/26/2016
6/27/2016
6/28/2016
6/29/2016
6/30/2016
Day of YearDaily PrcpMultiday Prcp
7/1/2016
7/2/2016
7/3/2016 0.01
7/4/2016 0.01
7/5/2016 0.04
7/6/2016
7/7/2016 0.02
7/8/2016 0.07
7/9/2016 0.04
7/10/2016 T
7/11/2016
7/12/2016
7/13/2016
7/14/2016 T
7/15/2016
7/16/2016
7/17/2016 T
7/18/2016 0.02
7/19/2016
7/20/2016
7/21/2016
7/22/2016
7/23/2016
7/24/2016
7/25/2016
7/26/2016
7/27/2016
7/28/2016
7/29/2016
7/30/2016
7/31/2016
8/1/2016
8/2/2016
8/3/2016
8/4/2016
8/5/2016 **
8/6/2016 **
8/7/2016 0.06
8/8/2016
8/9/2016
8/10/2016
8/11/2016 0.02
8/12/2016 0.01
8/13/2016
8/14/2016 T
8/15/2016 0.01
8/16/2016 0.02
8/17/2016 T
8/18/2016 0.02
8/19/2016
8/20/2016
8/21/2016
8/22/2016
8/23/2016
8/24/2016
8/25/2016 T
8/26/2016
8/27/2016
8/28/2016
8/29/2016
8/30/2016
8/31/2016
9/1/2016
9/2/2016
9/3/2016
9/4/2016
9/5/2016
9/6/2016
9/7/2016
9/8/2016
9/9/2016
9/10/2016
9/11/2016
9/12/2016
9/13/2016
9/14/2016
9/15/2016
9/16/2016 T
9/17/2016
9/18/2016
9/19/2016
9/20/2016 T
9/21/2016
9/22/2016
9/23/2016
9/24/2016
9/25/2016
9/26/2016
9/27/2016
9/28/2016
9/29/2016
9/30/2016



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2015 7:00 AM 0.03 M M M M
10/2/2015 7:00 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
10/10/2015 7:00 AM T M M M M fog drizzle overnight
10/11/2015 7:00 AM T M M M M fog drizzle through mid/late morning 10/10
10/18/2015 7:00 AM 0.01 M M M M fog drizzle during afternoon of 10/17
10/19/2015 6:30 AM 0.15 M M M M 12 hrs of fog drizzle, cont at obs time
10/26/2015 6:30 AM T M M M M v light mist drifting though porch lights at obs time
10/28/2015 6:15 AM 0.01 M M M M most occurred late pm yesterday
11/1/2015 9:00 AM 0.02 M M M M almost 0.03.?
11/2/2015 6:30 AM 0.35 M M M M
11/3/2015 6:23 AM 0.30 M M M M tail end of yesterday's event
11/8/2015 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
11/9/2015 7:00 AM 0.03 M M M M
11/10/2015 7:00 AM 0.51 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
11/15/2015 8:25 AM 0.54 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
11/23/2015 6:56 AM T M M M M fog drizzle
11/25/2015 7:00 AM 0.12 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/1/2015 6:45 AM 0.01 M M M M almost 0.02, but not quite...
12/4/2015 6:45 AM 0.39 M M M M
12/7/2015 6:45 AM 0.21 M M M M
12/10/2015 6:30 AM 0.32 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/11/2015 6:45 AM 0.23 M M M M
12/12/2015 8:00 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/13/2015 8:30 AM 0.20 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/14/2015 6:30 AM 0.22 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/19/2015 8:40 AM 0.61 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/21/2015 8:15 AM 1.48 M M M M light rain really added up
12/22/2015 7:00 AM 0.83 M M M M breezy w drizzle cont at obs time
12/23/2015 8:30 AM 0.15 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/24/2015 8:00 AM 0.13 M M M M passing showers this AM, sprinkles cont
12/25/2015 8:00 AM 0.16 M M M M last of passing showers yesterday
12/28/2015 7:00 AM 0.06 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
12/31/2015 7:00 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/4/2016 7:30 AM 0.12 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/5/2016 6:34 AM 0.81 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/6/2016 6:45 AM 0.99 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/7/2016 6:45 AM 0.34 M M M M
1/8/2016 7:00 AM T M M M M
1/9/2016 8:00 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/11/2016 6:45 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/13/2016 6:28 AM 0.27 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/14/2016 6:45 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/15/2016 7:00 AM 0.17 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/16/2016 7:39 AM 0.25 M M M M most accumulated 1/15 pm, sprinkles cont at obs time
1/17/2016 7:00 AM 0.05 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/18/2016 7:00 AM 1.23 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/19/2016 6:30 AM 0.58 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/20/2016 6:45 AM 0.57 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/22/2016 6:40 AM 0.17 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/23/2016 7:30 AM 0.11 M M M M
1/24/2016 8:00 AM 0.15 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/29/2016 6:50 AM 0.06 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
1/30/2016 8:15 AM 0.28 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
2/2/2016 6:45 AM 0.18 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
2/3/2016 6:45 AM 0.16 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
2/18/2016 7:00 AM 0.58 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
2/20/2016 8:24 AM 0.09 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
2/26/2016 7:00 AM T M M M M fog drizzle
2/27/2016 7:26 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
2/29/2016 6:30 AM T M M M M foggy last evening...
3/1/2016 7:00 AM 0.00 0.0 M M M
3/2/2016 7:00 AM 0.00 0.0 M M M
3/3/2016 6:30 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/4/2016 6:39 AM 0.21 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/5/2016 7:00 AM 0.29 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/6/2016 7:15 AM 1.56 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/7/2016 6:19 AM 0.98 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/8/2016 6:49 AM 0.12 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/9/2016 6:30 AM 0.14 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/10/2016 6:43 AM 0.13 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/11/2016 6:39 AM 1.14 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/12/2016 6:42 AM 0.34 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/13/2016 7:35 AM 0.68 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/14/2016 6:47 AM 0.56 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/15/2016 7:00 AM 0.00 0.0 M M M
3/16/2016 7:00 AM 0.00 0.0 M M M
3/17/2016 7:00 AM 0.00 0.0 M M M
3/18/2016 7:00 AM T M M M M fog drizzle
3/19/2016 7:00 AM T M M M M fog drizzle
3/20/2016 7:00 AM 0.00 0.0 M M M
3/21/2016 6:54 AM 0.34 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/22/2016 6:52 AM 0.07 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
3/23/2016 7:00 AM 0.00 0.0 M M M
3/24/2016 7:00 AM 0.00 0.0 M M M
3/25/2016 7:00 AM 0.00 0.0 M M M
3/26/2016 7:00 AM 0.00 0.0 M M M
3/27/2016 7:00 AM 0.00 0.0 M M M
3/28/2016 7:00 AM 0.00 0.0 M M M
3/29/2016 7:00 AM 0.00 0.0 M M M
3/30/2016 7:00 AM 0.00 0.0 M M M
3/31/2016 7:00 AM 0.00 0.0 M M M
4/1/2016 7:00 AM 0.00 0.0 M M M
4/2/2016 7:00 AM 0.00 0.0 M M M
4/3/2016 7:00 AM 0.00 0.0 M M M
4/4/2016 6:43 AM 0.01 M M M M fog drizzle overnight
4/5/2016 7:00 AM 0.00 0.0 M M M
4/6/2016 7:00 AM 0.00 0.0 M M M
4/7/2016 7:00 AM 0.00 0.0 M M M
4/8/2016 7:00 AM 0.00 0.0 M M M
4/9/2016 7:00 AM 0.43 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
4/10/2016 6:51 AM 0.23 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
4/11/2016 7:00 AM 0.01 M M M M
4/14/2016 6:36 AM 0.19 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
4/21/2016 6:45 AM T M M M M drizzle overnight... wipers in the morning
4/22/2016 6:34 AM 0.10 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
4/23/2016 7:00 AM 0.07 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
4/28/2016 6:37 AM 0.12 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
5/7/2016 7:00 AM 0.05 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
5/8/2016 7:00 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
5/24/2016 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
5/25/2016 6:12 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
5/31/2016 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
6/2/2016 8:05 AM 0.01 M M M M fog drizzle
6/6/2016 7:00 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
6/7/2016 7:00 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
6/8/2016 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
6/9/2016 7:00 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.13
7/3/2016 7:00 AM 0.01 M M M M fog drizzle
7/4/2016 7:00 AM 0.01 M M M M fog drizzle
7/5/2016 7:00 AM 0.04 M M M M fog drizzle
7/7/2016 7:00 AM 0.02 M M M M fog drizzle
7/8/2016 7:00 AM 0.07 M M M M fog drizzle
7/9/2016 7:00 AM 0.04 M M M M fog drizzle
7/10/2016 7:00 AM T M M M M fog drizzle
7/14/2016 7:00 AM T M M M M foggy mist, but not heavy
7/17/2016 7:00 AM T M M M M fog drizzle
7/18/2016 8:30 AM 0.02 M M M M fog drizzle... some heavy
8/11/2016 7:00 AM 0.02 M M M M fog drizzle
8/12/2016 7:00 AM 0.01 M M M M fog drizzle
8/14/2016 7:00 AM T M M M M fog drizzle
8/15/2016 7:00 AM 0.01 M M M M fog drizzle
8/16/2016 6:57 AM 0.02 M M M M fog drizzle
8/17/2016 6:13 AM T M M M M fog drizzle
8/18/2016 6:36 AM 0.02 M M M M fog drizzle
8/25/2016 6:46 AM T M M M M fog drizzle
9/16/2016 6:49 AM T M M M M fog drizzle
9/20/2016 6:47 AM T M M M M fog drizzle



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
8/5/2016 8/07/2016 4:00 PM 3 0.06 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
3/6/2016 5:00 AM Reported via Facebook comments and photos from community 2 miles north of CA-SM-18; larger hail had white core with clear rim NA 3/8" NA Clear Ice|White Ice no damage False