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 14 1.51 0.40 23 0.40 23 0.00 0 0 5 6 0.0 0 0
Nov 14 3.20 2.43 25 2.43 25 0.00 0 0 11 4 0.0 0 0
Dec 14 5.20 11.17 36 10.32 26 0.85 10 1 16 3 0.0 0 0
Jan 15 5.62 0.07 8 0.00 6 0.07 2 1 0 0 0.0 0 0
Feb 15 5.23 2.12 6 2.12 4 0.00 2 0 3 1 0.0 0 0
March 15 3.99 0.27 5 0.22 4 0.05 1 1 3 1 0.0 0 0
April 15 1.79 1.08 10 1.08 10 0.00 0 0 5 4 0.0 0 0
May 15 1.03 0.14 15 0.14 15 0.00 0 0 6 8 0.0 0 0
June 15 0.28 0.14 56 0.14 12 0.00 44 0 5 7 0.0 0 0
July 15 0.10 0.46 21 0.04 5 0.42 16 2 3 2 0.0 0 0
Aug 15 0.19 0.08 6 0.08 6 0.00 0 0 4 1 0.0 0 0
Sept 15 0.34 0.03 2 0.03 2 0.00 0 0 2 0 0.0 0 0
Water Year Totals: 28.48" 18.39" 213 days 17.00" 138 1.39" 75 days 5 63 days 37 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 T
10/2/2014
10/3/2014
10/4/2014
10/5/2014
10/6/2014
10/7/2014
10/8/2014
10/9/2014 T
10/10/2014 T
10/11/2014 0.00
10/12/2014 0.00
10/13/2014
10/14/2014 0.00
10/15/2014 0.06
10/16/2014 0.01
10/17/2014 0.00
10/18/2014 0.00
10/19/2014 T
10/20/2014 0.00
10/21/2014 0.09
10/22/2014 0.00
10/23/2014 0.00
10/24/2014 T
10/25/2014 0.23
10/26/2014 0.01
10/27/2014 0.00
10/28/2014 0.00
10/29/2014 0.00
10/30/2014 0.00
10/31/2014 T
11/1/2014 0.50
11/2/2014 0.08
11/3/2014 0.00
11/4/2014 0.00
11/5/2014 0.00
11/6/2014 0.00
11/7/2014 T
11/8/2014 0.00
11/9/2014 T
11/10/2014 T
11/11/2014 T
11/12/2014 0.00
11/13/2014 0.47
11/14/2014 0.03
11/15/2014 0.00
11/16/2014
11/17/2014
11/18/2014
11/19/2014 0.07
11/20/2014 0.43
11/21/2014 0.34
11/22/2014 0.26
11/23/2014 0.08
11/24/2014 0.00
11/25/2014 0.00
11/26/2014 0.00
11/27/2014
11/28/2014
11/29/2014 0.02
11/30/2014 0.15
12/1/2014 0.38
12/2/2014 1.25
12/3/2014 0.90
12/4/2014 0.58
12/5/2014 0.12
12/6/2014 0.13
12/7/2014 T
12/8/2014 0.00
12/9/2014 T
12/10/2014 0.00
12/11/2014 0.25
12/12/2014 3.42
12/13/2014 0.37
12/14/2014 0.00
12/15/2014 0.93
12/16/2014 0.66
12/17/2014 0.88
12/18/2014 0.26
12/19/2014 0.13
12/20/2014 **
12/21/2014 0.85
12/22/2014 0.02
12/23/2014 0.00
12/24/2014 T **
12/25/2014 0.04 **
12/26/2014 0.00 **
12/27/2014 0.00 **
12/28/2014 0.00 **
12/29/2014 **
12/30/2014 **
12/31/2014 **
Day of YearDaily PrcpMultiday Prcp
1/1/2015 **
1/2/2015 0.07
1/3/2015 0.00
1/4/2015 0.00
1/5/2015 0.00
1/6/2015 0.00
1/7/2015 0.00
1/8/2015 0.00
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
1/22/2015
1/23/2015
1/24/2015
1/25/2015
1/26/2015
1/27/2015
1/28/2015
1/29/2015
1/30/2015
1/31/2015
2/1/2015
2/2/2015
2/3/2015
2/4/2015
2/5/2015
2/6/2015
2/7/2015 0.91
2/8/2015 0.83
2/9/2015 0.38
2/10/2015
2/11/2015
2/12/2015
2/13/2015
2/14/2015
2/15/2015
2/16/2015
2/17/2015 T
2/18/2015
2/19/2015
2/20/2015
2/21/2015
2/22/2015
2/23/2015
2/24/2015
2/25/2015
2/26/2015
2/27/2015 **
2/28/2015 **
3/1/2015 0.05
3/2/2015
3/3/2015
3/4/2015
3/5/2015
3/6/2015
3/7/2015
3/8/2015
3/9/2015
3/10/2015
3/11/2015 0.02
3/12/2015
3/13/2015
3/14/2015
3/15/2015
3/16/2015
3/17/2015
3/18/2015
3/19/2015
3/20/2015
3/21/2015 T
3/22/2015 0.02
3/23/2015 0.18
3/24/2015
3/25/2015
3/26/2015
3/27/2015
3/28/2015
3/29/2015
3/30/2015
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015
4/2/2015
4/3/2015
4/4/2015
4/5/2015
4/6/2015 0.04
4/7/2015 0.59
4/8/2015 0.03
4/9/2015
4/10/2015
4/11/2015
4/12/2015
4/13/2015
4/14/2015
4/15/2015
4/16/2015
4/17/2015
4/18/2015
4/19/2015 T
4/20/2015 T
4/21/2015 T
4/22/2015
4/23/2015
4/24/2015
4/25/2015 0.41
4/26/2015 T
4/27/2015 0.00
4/28/2015 0.01
4/29/2015
4/30/2015
5/1/2015
5/2/2015
5/3/2015
5/4/2015 T
5/5/2015
5/6/2015
5/7/2015
5/8/2015
5/9/2015 T
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
5/19/2015 T
5/20/2015 T
5/21/2015 0.01
5/22/2015 T
5/23/2015 T
5/24/2015 T
5/25/2015 0.04
5/26/2015 0.05
5/27/2015 0.01
5/28/2015 0.01
5/29/2015 0.02
5/30/2015 T
5/31/2015 0.00
6/1/2015 0.04
6/2/2015 0.02 **
6/3/2015 T **
6/4/2015 T **
6/5/2015 **
6/6/2015 T **
6/7/2015 **
6/8/2015 **
6/9/2015 T **
6/10/2015 0.03 **
6/11/2015 0.04 **
6/12/2015 T **
6/13/2015 0.01 **
6/14/2015 T **
6/15/2015 T **
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 0.07
7/7/2015 **
7/8/2015 **
7/9/2015 0.02 **
7/10/2015 T 0.35
7/11/2015
7/12/2015
7/13/2015
7/14/2015 0.01
7/15/2015 0.01
7/16/2015
7/17/2015
7/18/2015
7/19/2015
7/20/2015
7/21/2015
7/22/2015 T
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 0.01
8/10/2015 T
8/11/2015 0.02
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 0.02
8/30/2015 0.03
8/31/2015 0.00
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 0.01
9/15/2015
9/16/2015
9/17/2015 0.02
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
10/1/2014 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.6
10/9/2014 7:00 AM T M M M M slight accumulation in gauge
10/10/2014 7:00 AM T M M M M v.light mist in AM
10/11/2014 7:00 AM 0.00 0.0 M M M
10/12/2014 7:00 AM 0.00 0.0 M M M
10/14/2014 7:00 AM 0.00 0.0 M M M
10/15/2014 6:45 AM 0.06 M M M M almost 0.07, but not quite... v.light spinkles cont at obs time
10/16/2014 6:45 AM 0.01 M M M M last bit from yesterday's precip...makes the event total 0.07 for this station
10/17/2014 7:00 AM 0.00 0.0 M M M
10/18/2014 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.6
10/19/2014 7:00 AM T M M M M fog drizzle
10/20/2014 6:45 AM 0.00 0.0 M M M
10/21/2014 6:09 AM 0.09 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.6
10/22/2014 7:00 AM 0.00 0.0 M M M
10/23/2014 7:00 AM 0.00 0.0 M M M
10/24/2014 7:00 AM T M M M M clear skies at obs time
10/25/2014 7:00 AM 0.23 M M M M rain cont at obs time
10/26/2014 7:00 AM 0.01 M M M M last bit from yesterday's morning rain (total=0.24)
10/27/2014 7:00 AM 0.00 0.0 M M M
10/28/2014 7:00 AM 0.00 0.0 M M M
10/29/2014 7:00 AM 0.00 0.0 M M M
10/30/2014 7:00 AM 0.00 0.0 M M M
10/31/2014 7:00 AM T M M M M few faint drops hitting the windshield this morning...
11/1/2014 6:53 AM 0.50 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.6
11/2/2014 7:00 AM 0.08 M M M M last bit after the main front 10/31
11/3/2014 6:45 AM 0.00 0.0 M M M
11/4/2014 7:00 AM 0.00 0.0 M M M
11/5/2014 7:00 AM 0.00 0.0 M M M
11/6/2014 7:00 AM 0.00 0.0 M M M
11/7/2014 7:00 AM T M M M M
11/8/2014 7:00 AM 0.00 0.0 M M M
11/9/2014 8:45 AM T M M M M fog drizzle
11/10/2014 7:00 AM T M M M M fog drizzle
11/11/2014 7:00 AM T M M M M
11/12/2014 7:00 AM 0.00 0.0 M M M
11/13/2014 6:45 AM 0.47 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.6
11/14/2014 7:00 AM 0.03 M M M M the last bit from yesterday's event; total=0.50
11/15/2014 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.6
11/19/2014 6:45 AM 0.07 M M M M light rain cont at obs time
11/20/2014 6:45 AM 0.43 M M M M
11/21/2014 6:45 AM 0.34 M M M M
11/22/2014 8:20 AM 0.26 M M M M light rain cont at obs time
11/23/2014 7:00 AM 0.08 M M M M tail end of last rain... clear skies today
11/24/2014 7:00 AM 0.00 0.0 M M M
11/25/2014 7:00 AM 0.00 0.0 M M M
11/26/2014 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.8
11/29/2014 7:00 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.8
11/30/2014 8:00 AM 0.15 M M M M light rain cont at obs time
12/1/2014 7:00 AM 0.38 M M M M event total=0.53
12/2/2014 6:30 AM 1.25 M M M M light rain cont at obs time
12/3/2014 6:00 AM 0.90 M M M M ...in between showers
12/4/2014 6:15 AM 0.58 M M M M
12/5/2014 6:30 AM 0.12 M M M M
12/6/2014 7:00 AM 0.13 M M M M
12/7/2014 7:00 AM T M M M M
12/8/2014 7:00 AM 0.00 0.0 M M M
12/9/2014 7:00 AM T M M M M drizzle at obs time
12/10/2014 7:00 AM 0.00 0.0 M M M
12/11/2014 6:45 AM 0.25 M M M M rain cont at obs time
12/12/2014 6:20 AM 3.42 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.9
12/13/2014 7:00 AM 0.37 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.9
12/14/2014 7:00 AM 0.00 0.0 M M M
12/15/2014 6:45 AM 0.93 M M M M
12/16/2014 7:00 AM 0.66 M M M M
12/17/2014 6:45 AM 0.88 M M M M
12/18/2014 7:00 AM 0.26 M M M M
12/19/2014 7:30 AM 0.13 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.9
12/22/2014 9:15 AM 0.02 M M M M
12/23/2014 7:00 AM 0.00 0.0 M M M
12/24/2014 7:30 AM T M M M M fog/drizzle; almost 0.01, but not quite :)
12/25/2014 9:00 AM 0.04 M M M M
12/26/2014 7:00 AM 0.00 0.0 M M M
12/27/2014 8:00 AM 0.00 0.0 M M M
12/28/2014 8:00 AM 0.00 0.0 M M M
1/3/2015 7:00 AM 0.00 0.0 M M M
1/4/2015 7:00 AM 0.00 0.0 M M M
1/5/2015 7:00 AM 0.00 0.0 M M M
1/6/2015 7:00 AM 0.00 0.0 M M M
1/7/2015 7:00 AM 0.00 0.0 M M M
1/8/2015 7:00 AM 0.00 0.0 M M M
2/7/2015 7:30 AM 0.91 M M M M
2/8/2015 9:00 AM 0.83 M M M M
2/9/2015 7:00 AM 0.38 M M M M
2/17/2015 7:00 AM T M M M M fog drizzle at obs. time
3/11/2015 7:00 AM 0.02 M M M M
3/21/2015 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.9
3/22/2015 7:00 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.9
3/23/2015 6:37 AM 0.18 M M M M light rain at obs time
4/6/2015 6:45 AM 0.04 M M M M from brief/light showers about noon +/-
4/7/2015 6:42 AM 0.59 M M M M Lt rain cont at obs time
4/8/2015 7:00 AM 0.03 M M M M from tail end of frontal passage
4/19/2015 7:00 AM T M M M M fog drizzle
4/20/2015 7:00 AM T M M M M fog drizzle
4/21/2015 7:00 AM T M M M M fog drizzle
4/25/2015 7:00 AM 0.41 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
4/26/2015 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
4/27/2015 7:00 AM 0.00 0.0 M M M
4/28/2015 6:45 AM 0.01 M M M M fog/drizzle overnight
5/4/2015 7:00 AM T M M M M fog drizzle
5/9/2015 7:00 AM T M M M M fog drizzle
5/19/2015 7:00 AM T M M M M overcast/fog/drizzle
5/20/2015 7:00 AM T M M M M
5/21/2015 7:00 AM 0.01 M M M M overcast/fog/drizzle, almost 0.02, but not quite; cont at obs time
5/22/2015 7:00 AM T M M M M
5/23/2015 7:00 AM T M M M M
5/24/2015 7:00 AM T M M M M
5/25/2015 7:00 AM 0.04 M M M M fog/drizzle
5/26/2015 6:42 AM 0.05 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
5/27/2015 7:00 AM 0.01 M M M M overcast/fog/drizzle
5/28/2015 7:00 AM 0.01 M M M M overcast/fog/drizzle
5/29/2015 6:45 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
5/30/2015 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
5/31/2015 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
6/1/2015 7:00 AM 0.04 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
6/2/2015 7:00 AM 0.02 M M M M tail end of yesterday's AM drizzle
6/3/2015 7:00 AM T M M M M overcast/fog/drizzle for most of the day 6/2
6/4/2015 7:00 AM T M M M M occasional v light mist
6/6/2015 7:00 AM T M M M M overcast/fog/mist
6/9/2015 7:30 AM T M M M M passing fog/drizzle, almost 0.01
6/10/2015 7:45 AM 0.03 M M M M light rain cont at obs time
6/11/2015 8:00 AM 0.04 M M M M 0.07 total from the remains of Huricane (TS) Blanca
6/12/2015 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
6/13/2015 7:30 AM 0.01 M M M M v light mist cont at obs time
6/14/2015 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
6/15/2015 7:00 AM T M M M M overcast fog drizzle
7/9/2015 7:00 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.10
7/10/2015 7:00 AM T M M M M sporadic mist and drops observed during afternoon and evening
7/14/2015 7:00 AM 0.01 M M M M fog drizzle
7/15/2015 7:00 AM 0.01 M M M M more fog... more drizzle...
7/22/2015 7:00 AM T M M M M fog drizzle
8/9/2015 7:00 AM 0.01 M M M M fog drizzle
8/10/2015 7:00 AM T M M M M fog drizzle off/on during the day
8/11/2015 7:00 AM 0.02 M M M M fog drizzle overnight... almost 0.03, but not quite :-)
8/29/2015 7:00 AM 0.02 M M M M drizzle overnight
8/30/2015 7:00 AM 0.03 M M M M tail end of previous event, plus fog drizzle overnight... cont at obs time
8/31/2015 6:45 AM 0.00 0.0 M M M
9/14/2015 6:45 AM 0.01 M M M M fog drizzle overnight
9/17/2015 6:45 AM 0.02 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
12/20/2014 12/21/2014 7:45 AM 2 0.85 M M
12/24/2014 1/02/2015 2:30 PM 10 0.07 M M probably was slightly more due to evaporation over the past 8+ days
2/27/2015 3/01/2015 8:00 AM 3 0.05 M M passing showers didn't leave much behind...
6/2/2015 7/10/2015 12:18 PM 39 0.35 M M reported by public; not emptied... 0.05 reported but not emptied on 6/1 may well have evaporated during the interim, so am keeping the full 0.35 reported today
6/16/2015 7/06/2015 7:00 AM 21 0.07 M M some evaporation/loss possible during this period...



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