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 12 1.59 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 12 3.79 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 12 7.22 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 13 6.97 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 13 7.48 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 13 4.90 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 13 2.36 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 13 1.33 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 13 0.28 0.68 4 0.00 0 0.68 4 1 0 0 0.0 0 0
July 13 0.09 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 13 0.19 0.02 16 0.00 1 0.02 15 3 0 0 0.0 0 0
Sept 13 0.35 0.61 32 0.00 2 0.61 30 3 0 0 0.0 0 0
Water Year Totals: 36.55" 1.31" 52 days 0.00" 3 1.31" 49 days 7 0 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
10/1/2012
10/2/2012
10/3/2012
10/4/2012
10/5/2012
10/6/2012
10/7/2012
10/8/2012
10/9/2012
10/10/2012
10/11/2012
10/12/2012
10/13/2012
10/14/2012
10/15/2012
10/16/2012
10/17/2012
10/18/2012
10/19/2012
10/20/2012
10/21/2012
10/22/2012
10/23/2012
10/24/2012
10/25/2012
10/26/2012
10/27/2012
10/28/2012
10/29/2012
10/30/2012
10/31/2012
11/1/2012
11/2/2012
11/3/2012
11/4/2012
11/5/2012
11/6/2012
11/7/2012
11/8/2012
11/9/2012
11/10/2012
11/11/2012
11/12/2012
11/13/2012
11/14/2012
11/15/2012
11/16/2012
11/17/2012
11/18/2012
11/19/2012
11/20/2012
11/21/2012
11/22/2012
11/23/2012
11/24/2012
11/25/2012
11/26/2012
11/27/2012
11/28/2012
11/29/2012
11/30/2012
12/1/2012
12/2/2012
12/3/2012
12/4/2012
12/5/2012
12/6/2012
12/7/2012
12/8/2012
12/9/2012
12/10/2012
12/11/2012
12/12/2012
12/13/2012
12/14/2012
12/15/2012
12/16/2012
12/17/2012
12/18/2012
12/19/2012
12/20/2012
12/21/2012
12/22/2012
12/23/2012
12/24/2012
12/25/2012
12/26/2012
12/27/2012
12/28/2012
12/29/2012
12/30/2012
12/31/2012
Day of YearDaily PrcpMultiday Prcp
1/1/2013
1/2/2013
1/3/2013
1/4/2013
1/5/2013
1/6/2013
1/7/2013
1/8/2013
1/9/2013
1/10/2013
1/11/2013
1/12/2013
1/13/2013
1/14/2013
1/15/2013
1/16/2013
1/17/2013
1/18/2013
1/19/2013
1/20/2013
1/21/2013
1/22/2013
1/23/2013
1/24/2013
1/25/2013
1/26/2013
1/27/2013
1/28/2013
1/29/2013
1/30/2013
1/31/2013
2/1/2013
2/2/2013
2/3/2013
2/4/2013
2/5/2013
2/6/2013
2/7/2013
2/8/2013
2/9/2013
2/10/2013
2/11/2013
2/12/2013
2/13/2013
2/14/2013
2/15/2013
2/16/2013
2/17/2013
2/18/2013
2/19/2013
2/20/2013
2/21/2013
2/22/2013
2/23/2013
2/24/2013
2/25/2013
2/26/2013
2/27/2013
2/28/2013
3/1/2013
3/2/2013
3/3/2013
3/4/2013
3/5/2013
3/6/2013
3/7/2013
3/8/2013
3/9/2013
3/10/2013
3/11/2013
3/12/2013
3/13/2013
3/14/2013
3/15/2013
3/16/2013
3/17/2013
3/18/2013
3/19/2013
3/20/2013
3/21/2013
3/22/2013
3/23/2013
3/24/2013
3/25/2013
3/26/2013
3/27/2013
3/28/2013
3/29/2013
3/30/2013
3/31/2013
Day of YearDaily PrcpMultiday Prcp
4/1/2013
4/2/2013
4/3/2013
4/4/2013
4/5/2013
4/6/2013
4/7/2013
4/8/2013
4/9/2013
4/10/2013
4/11/2013
4/12/2013
4/13/2013
4/14/2013
4/15/2013
4/16/2013
4/17/2013
4/18/2013
4/19/2013
4/20/2013
4/21/2013
4/22/2013
4/23/2013
4/24/2013
4/25/2013
4/26/2013
4/27/2013
4/28/2013
4/29/2013
4/30/2013
5/1/2013
5/2/2013
5/3/2013
5/4/2013
5/5/2013
5/6/2013
5/7/2013
5/8/2013
5/9/2013
5/10/2013
5/11/2013
5/12/2013
5/13/2013
5/14/2013
5/15/2013
5/16/2013
5/17/2013
5/18/2013
5/19/2013
5/20/2013
5/21/2013
5/22/2013
5/23/2013
5/24/2013
5/25/2013
5/26/2013
5/27/2013
5/28/2013
5/29/2013
5/30/2013
5/31/2013
6/1/2013
6/2/2013
6/3/2013
6/4/2013
6/5/2013
6/6/2013
6/7/2013
6/8/2013
6/9/2013
6/10/2013
6/11/2013
6/12/2013
6/13/2013
6/14/2013
6/15/2013
6/16/2013
6/17/2013
6/18/2013
6/19/2013
6/20/2013
6/21/2013
6/22/2013
6/23/2013 **
6/24/2013 **
6/25/2013 **
6/26/2013 0.68
6/27/2013
6/28/2013
6/29/2013
6/30/2013
Day of YearDaily PrcpMultiday Prcp
7/1/2013
7/2/2013
7/3/2013
7/4/2013
7/5/2013
7/6/2013
7/7/2013
7/8/2013
7/9/2013
7/10/2013
7/11/2013
7/12/2013
7/13/2013
7/14/2013
7/15/2013
7/16/2013
7/17/2013
7/18/2013
7/19/2013
7/20/2013
7/21/2013
7/22/2013
7/23/2013
7/24/2013
7/25/2013
7/26/2013
7/27/2013
7/28/2013
7/29/2013
7/30/2013
7/31/2013
8/1/2013
8/2/2013
8/3/2013
8/4/2013
8/5/2013
8/6/2013
8/7/2013
8/8/2013
8/9/2013
8/10/2013
8/11/2013
8/12/2013
8/13/2013
8/14/2013
8/15/2013
8/16/2013
8/17/2013 M **
8/18/2013 0.00 0.00
8/19/2013 **
8/20/2013 **
8/21/2013 **
8/22/2013 **
8/23/2013 0.00
8/24/2013 **
8/25/2013 **
8/26/2013 **
8/27/2013 **
8/28/2013 **
8/29/2013 **
8/30/2013 **
8/31/2013 0.02
9/1/2013 **
9/2/2013 **
9/3/2013 **
9/4/2013 **
9/5/2013 0.00 **
9/6/2013 **
9/7/2013 **
9/8/2013 0.00 0.00
9/9/2013 **
9/10/2013 **
9/11/2013 **
9/12/2013 **
9/13/2013 **
9/14/2013 **
9/15/2013 **
9/16/2013 **
9/17/2013 0.02
9/18/2013 **
9/19/2013 **
9/20/2013 **
9/21/2013 **
9/22/2013 M **
9/23/2013 **
9/24/2013 **
9/25/2013 **
9/26/2013 0.59
9/27/2013 **
9/28/2013 **
9/29/2013 **
9/30/2013 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
8/17/2013 11:00 AM M M M M M gauge installed in accord with NPS permit #GOGA-2013-SCI-0012; more info at http://halfmoonbay.patch.com/groups/how-much-rain/p/rain-gauge-on-montara-mountain
8/18/2013 12:00 PM 0.00 0.0 M M M reported by MLS; first visitor report at this remote station :-)
9/5/2013 1:30 PM 0.00 0.0 M M M reported by public (FD)
9/8/2013 8:00 AM 0.00 0.0 M M M clear skies above; fog below about 1000 feet
9/22/2013 7:30 AM M M M M M ** see multi-day report for 9/26



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
6/23/2013 6/26/2013 10:30 AM 4 0.68 M M late June event; mostly coastal; rain barely made it over the ridge
8/17/2013 8/18/2013 12:09 PM 2 0.00 M M reported by meeralee; thanks :-)
8/19/2013 8/23/2013 4:30 PM 5 0.00 M M dry gauge, few drops under lip of funnel
8/24/2013 8/31/2013 12:00 PM 8 0.02 M M
9/1/2013 9/08/2013 8:00 AM 8 0.00 M M
9/9/2013 9/17/2013 2:00 PM 9 0.02 M M not sure of evap. loss; automated stations nearby although lower by 1200 and 800 feet recorded 0.16 and 0.11, respectively, during the same period; winds at nearby station have averaged 10-15 mph; diff. in accum. possibly due to elevation within fog/drizzle stratus; not sure
9/18/2013 9/26/2013 1:11 PM 9 0.59 M M 0.58 reported by public; I was up there on 9/22 and measured 0.59 but did not empty the gauge; this gives an indication of the minor loss due to evaporation at this site over 4+ days since a system passed on 9/21
9/27/2013 10/14/2013 10:30 AM 18 0.04 M M reported by public; accumulated/remaining over 2 weeks; may represent some dew, possibly local drizzle events about 9/30-10/1 + more recently; hopefully not from someone's water bottle...difficult to QC this report. If evap is 0.01 over 2 days, then there may have been as much as 0.11 during the 9/30-10/1 event (?)



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