Station Overview Station Location
Station Number CA-SM-20 Latitude 37.56055
Station Name Moss Beach 3.1 NNE Longitude -122.47803
County San Mateo Elevation (ft) 1828



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 1.59 0.19 31 0.00 0 0.19 31 2 0 0 0.0 0 0
Nov 15 3.79 2.80 30 0.60 1 2.20 29 4 1 0 0.0 0 0
Dec 15 7.22 5.35 31 0.00 0 5.35 31 3 0 0 0.0 0 0
Jan 16 6.97 6.09 31 0.00 0 6.09 31 7 0 0 0.0 0 0
Feb 16 7.48 1.07 29 0.00 3 1.07 26 3 0 0 0.0 0 0
March 16 4.90 5.91 31 0.00 0 5.91 31 5 0 0 0.0 0 0
April 16 2.36 1.20 30 0.00 0 1.20 30 3 0 0 0.0 0 0
May 16 1.33 0.19 31 0.00 0 0.19 31 5 0 0 0.0 0 0
June 16 0.28 0.08 30 0.00 0 0.08 30 3 0 0 0.0 0 0
July 16 0.09 0.16 22 0.00 0 0.16 22 2 0 0 0.0 0 0
Aug 16 0.19 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 16 0.35 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 36.55" 23.04" 296 days 0.60" 4 22.44" 292 days 37 1 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
10/1/2015 **
10/2/2015 **
10/3/2015 0.18
10/4/2015 **
10/5/2015 **
10/6/2015 **
10/7/2015 **
10/8/2015 **
10/9/2015 **
10/10/2015 **
10/11/2015 0.01
10/12/2015 **
10/13/2015 **
10/14/2015 **
10/15/2015 **
10/16/2015 **
10/17/2015 **
10/18/2015 **
10/19/2015 **
10/20/2015 **
10/21/2015 **
10/22/2015 **
10/23/2015 **
10/24/2015 **
10/25/2015 **
10/26/2015 **
10/27/2015 **
10/28/2015 **
10/29/2015 **
10/30/2015 **
10/31/2015 **
11/1/2015 0.34
11/2/2015 **
11/3/2015 **
11/4/2015 **
11/5/2015 **
11/6/2015 **
11/7/2015 0.83
11/8/2015 **
11/9/2015 **
11/10/2015 **
11/11/2015 **
11/12/2015 **
11/13/2015 **
11/14/2015 0.66
11/15/2015 0.60
11/16/2015 **
11/17/2015 **
11/18/2015 **
11/19/2015 **
11/20/2015 **
11/21/2015 **
11/22/2015 **
11/23/2015 **
11/24/2015 **
11/25/2015 **
11/26/2015 0.37
11/27/2015 **
11/28/2015 **
11/29/2015 **
11/30/2015 **
12/1/2015 **
12/2/2015 **
12/3/2015 **
12/4/2015 **
12/5/2015 **
12/6/2015 0.43
12/7/2015 **
12/8/2015 **
12/9/2015 **
12/10/2015 **
12/11/2015 **
12/12/2015 0.81
12/13/2015 **
12/14/2015 **
12/15/2015 **
12/16/2015 **
12/17/2015 **
12/18/2015 **
12/19/2015 **
12/20/2015 **
12/21/2015 **
12/22/2015 4.11
12/23/2015 **
12/24/2015 **
12/25/2015 **
12/26/2015 **
12/27/2015 **
12/28/2015 **
12/29/2015 **
12/30/2015 **
12/31/2015 **
Day of YearDaily PrcpMultiday Prcp
1/1/2016 **
1/2/2016 **
1/3/2016 0.42
1/4/2016 **
1/5/2016 **
1/6/2016 **
1/7/2016 1.98
1/8/2016 **
1/9/2016 **
1/10/2016 0.05
1/11/2016 **
1/12/2016 **
1/13/2016 **
1/14/2016 **
1/15/2016 **
1/16/2016 0.53
1/17/2016 **
1/18/2016 **
1/19/2016 **
1/20/2016 **
1/21/2016 **
1/22/2016 **
1/23/2016 **
1/24/2016 2.57
1/25/2016 **
1/26/2016 **
1/27/2016 **
1/28/2016 0.03
1/29/2016 **
1/30/2016 0.51
1/31/2016 **
2/1/2016 **
2/2/2016 **
2/3/2016 0.30
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 0.01
2/15/2016 0.00
2/16/2016 **
2/17/2016 **
2/18/2016 **
2/19/2016 **
2/20/2016 **
2/21/2016 0.76
2/22/2016 0.00
2/23/2016 0.00
2/24/2016 **
2/25/2016 **
2/26/2016 **
2/27/2016 **
2/28/2016 **
2/29/2016 **
3/1/2016 **
3/2/2016 **
3/3/2016 **
3/4/2016 **
3/5/2016 **
3/6/2016 **
3/7/2016 **
3/8/2016 **
3/9/2016 **
3/10/2016 **
3/11/2016 3.75
3/12/2016 **
3/13/2016 **
3/14/2016 **
3/15/2016 1.50
3/16/2016 **
3/17/2016 **
3/18/2016 **
3/19/2016 **
3/20/2016 0.03
3/21/2016 **
3/22/2016 **
3/23/2016 0.62
3/24/2016 **
3/25/2016 **
3/26/2016 **
3/27/2016 **
3/28/2016 **
3/29/2016 **
3/30/2016 **
3/31/2016 0.01
Day of YearDaily PrcpMultiday Prcp
4/1/2016 **
4/2/2016 **
4/3/2016 **
4/4/2016 **
4/5/2016 **
4/6/2016 **
4/7/2016 **
4/8/2016 0.01
4/9/2016 **
4/10/2016 **
4/11/2016 **
4/12/2016 **
4/13/2016 **
4/14/2016 **
4/15/2016 1.06
4/16/2016 **
4/17/2016 **
4/18/2016 **
4/19/2016 **
4/20/2016 **
4/21/2016 **
4/22/2016 **
4/23/2016 0.13
4/24/2016 **
4/25/2016 **
4/26/2016 **
4/27/2016 **
4/28/2016 **
4/29/2016 **
4/30/2016 **
5/1/2016 0.08
5/2/2016 **
5/3/2016 **
5/4/2016 **
5/5/2016 **
5/6/2016 0.03
5/7/2016 **
5/8/2016 0.04
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 0.03
5/19/2016 **
5/20/2016 **
5/21/2016 **
5/22/2016 0.01
5/23/2016 **
5/24/2016 **
5/25/2016 **
5/26/2016 **
5/27/2016 **
5/28/2016 **
5/29/2016 **
5/30/2016 **
5/31/2016 **
6/1/2016 0.06
6/2/2016 **
6/3/2016 **
6/4/2016 **
6/5/2016 T
6/6/2016 **
6/7/2016 **
6/8/2016 **
6/9/2016 **
6/10/2016 **
6/11/2016 **
6/12/2016 **
6/13/2016 **
6/14/2016 **
6/15/2016 **
6/16/2016 0.02
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 **
7/4/2016 **
7/5/2016 **
7/6/2016 **
7/7/2016 **
7/8/2016 **
7/9/2016 **
7/10/2016 **
7/11/2016 **
7/12/2016 **
7/13/2016 **
7/14/2016 **
7/15/2016 0.11
7/16/2016 **
7/17/2016 **
7/18/2016 **
7/19/2016 **
7/20/2016 **
7/21/2016 **
7/22/2016 0.05
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
8/8/2016
8/9/2016
8/10/2016
8/11/2016
8/12/2016
8/13/2016
8/14/2016
8/15/2016
8/16/2016
8/17/2016
8/18/2016
8/19/2016
8/20/2016
8/21/2016
8/22/2016
8/23/2016
8/24/2016
8/25/2016
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
9/17/2016
9/18/2016
9/19/2016
9/20/2016
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
11/15/2015 11:00 AM 0.60 M M M M reported by public via photo
2/15/2016 3:00 PM 0.00 0.0 M M M reported by public, including photo
2/22/2016 9:30 PM 0.00 0.0 M M M reported by public via email; confirmed previous report of 0.76, then emptied for 0.00
2/23/2016 1:30 PM 0.00 M M M M reported by public via email



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/2/2015 10/03/2015 4:30 PM 32 0.18 M M 0.18 reported via google form. previous running total of about 0.10 had not been emptied since 9/1, and likely lost to evaporation
10/4/2015 10/11/2015 8:30 AM 8 0.01 M M 0.19 observed after 0.18 reported on 10/3, so 0.01 is a minimum accumulation not accounting for any evaporative loss; now empty! and ready for true rain this week?
10/12/2015 11/01/2015 9:23 AM 21 0.34 M M reported by public; mostly from drizzle event 10/18-19; unknown evap loss... not emptied...
11/2/2015 11/07/2015 7:45 AM 6 0.83 M M from event on 11/1-2; ... 1.17 actually observed which included 0.34 reported previously; now empty
11/8/2015 11/14/2015 2:04 PM 7 0.66 M M
11/16/2015 11/26/2015 12:22 PM 11 0.37 M M reported by public via email/photo
11/27/2015 12/06/2015 2:50 PM 10 0.43 M M reported by public via email/photo
12/7/2015 12/12/2015 11:01 AM 6 0.81 M M reported by public via email/photo
12/13/2015 12/22/2015 12:00 PM 10 4.11 M M
12/23/2015 1/03/2016 12:00 PM 12 0.42 M M
1/4/2016 1/07/2016 12:00 PM 4 1.98 M M
1/8/2016 1/10/2016 12:00 PM 3 0.05 M M
1/11/2016 1/16/2016 4:00 PM 6 0.53 M M
1/17/2016 1/24/2016 12:47 PM 8 2.57 M M
1/25/2016 1/28/2016 7:00 AM 4 0.03 M M reported twice, observed at 1230 and 2:10 pm... one report via email and the other a QR code scan and google form; neither emptied...
1/29/2016 1/30/2016 2:00 PM 2 0.51 M M
1/31/2016 2/03/2016 3:08 AM 4 0.30 M M reported by public via Goggle Form; emptied
2/4/2016 2/14/2016 12:00 PM 11 0.01 M M probably accumulated fog drizzle...
2/16/2016 2/21/2016 1:40 PM 6 0.76 M M reported by public via Google Form; not emptied...
2/24/2016 3/11/2016 1:03 PM 17 3.75 M M reported by public via email with photo; user reported that water in the OUTER cylinder had reached up to 0.31 (~3.75")... not emptied...
3/12/2016 3/15/2016 3:00 PM 4 1.50 M M reported by public via Google Form; user reported that water in the OUTER cylinder had reached up to 0.48 on the inner cylinder, previously noted at 0.31 (on 3/11)... A total of 5.25" was since confirmed (and emptied) by another user on 3/16 :-)
3/16/2016 3/20/2016 12:23 PM 5 0.03 M M reported by public before the day's rain really started; also emptied :-)
3/21/2016 3/23/2016 9:46 AM 3 0.62 M M reported by public; and emptied :-)
3/24/2016 3/31/2016 10:50 AM 8 0.01 M M reported by public via Google Form; not emptied...
4/1/2016 4/08/2016 3:37 AM 8 0.01 M M reported by public via Google Form; not emptied... (report was 0.02, but minus the previous 0.01 that was not emptied on 3/31, unknown evap loss)
4/9/2016 4/15/2016 4:57 PM 7 1.06 M M reported by public via e-mail; 1.08 total, but less the 0.01 x2 reported previously and not emptied = 1.06 from the past week. Great efforts by the community :-)
4/16/2016 4/23/2016 10:00 AM 8 0.13 M M reported by public, but not emptied...
4/24/2016 5/01/2016 4:30 PM 8 0.08 M M 0.21 reported by public; not emptied; 0.08 probably a minimum due to evap loss
5/2/2016 5/06/2016 12:00 PM 5 0.03 M M 0.24 observed and reported by public, but previous total of 0.21 observed on 5/1 subtracted; probably a minimum given potential evap losses, not emptied...
5/7/2016 5/08/2016 7:10 PM 2 0.04 M M 0.28 observed and reported by public, but previous 0.24 on 5/6 subtracted... emptied :-)
5/9/2016 5/18/2016 10:51 AM 10 0.03 M M reported by public via Google Form, and emptied
5/19/2016 5/22/2016 2:33 PM 4 0.01 M M reported by public, and emptied :-)
5/23/2016 6/01/2016 12:24 PM 10 0.06 M M reported by public, but not emptied...
6/2/2016 6/05/2016 1:51 PM 4 T M M 0.04 reported, but may be remaining from previous 0.06 reported on 6/1
6/6/2016 6/16/2016 11:55 AM 11 0.02 M M probably a minimum given prior evap loss; not emptied...
6/17/2016 7/15/2016 12:38 PM 29 0.11 M M reported by public, and emptied :-)
7/16/2016 7/22/2016 7:00 AM 7 0.05 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