CoCoRaHS Station WYS : CA-SM-17

2019 CoCoRaHS Water Year Summary for Station CA-SM-17 Report generated on October 14, 2020

Station Overview		Station Location
Station Number	CA-SM-17	Latitude	37.550354
Station Name	San Mateo 1.2 SW	Longitude	-122.329503
County	San Mateo	Elevation (ft)	114

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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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 18	1.15	0.05	30	0.05	30	0.00	0	0	1	1	0.0	0	0
Nov 18	2.58	3.74	29	1.32	23	2.42	6	1	3	0	0.0	0	0
Dec 18	4.23	1.17	27	0.51	6	0.66	21	4	4	1	0.0	0	0
Jan 19	4.51	5.31	31	2.24	17	3.07	14	3	10	1	0.0	0	0
Feb 19	4.43	8.79	29	4.06	17	4.73	12	4	9	2	0.0	0	0
March 19	3.30	4.16	21	2.05	9	2.11	12	3	9	0	0.0	0	0
April 19	1.49	0.45	10	0.08	2	0.37	8	1	2	0	0.0	0	0
May 19	0.63	1.77	9	0.00	0	1.77	9	2	0	0	0.0	0	0
June 19	0.14	0.00	0	0.00	0	0.00	0	0	0	0	0.0	0	0
July 19	0.03	0.00	0	0.00	0	0.00	0	0	0	0	0.0	0	0
Aug 19	0.10	0.00	0	0.00	0	0.00	0	0	0	0	0.0	0	0
Sept 19	0.16	0.00	0	0.00	0	0.00	0	0	0	0	0.0	0	0
Water Year Totals:	22.75"	25.44"	186 days	10.31"	104	15.13"	82 days	18	38 days	5 days	0.0"	0 days	0 days

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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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
10/1/2018
10/2/2018	0.05
10/3/2018	T
10/4/2018	0.00
10/5/2018	0.00
10/6/2018	0.00
10/7/2018	0.00
10/8/2018	0.00
10/9/2018	0.00
10/10/2018	0.00
10/11/2018	0.00
10/12/2018	0.00
10/13/2018	0.00
10/14/2018	0.00
10/15/2018	0.00
10/16/2018	0.00
10/17/2018	0.00
10/18/2018	0.00
10/19/2018	0.00
10/20/2018	0.00
10/21/2018	0.00
10/22/2018	0.00
10/23/2018	0.00
10/24/2018	0.00
10/25/2018	0.00
10/26/2018	0.00
10/27/2018	0.00
10/28/2018	0.00
10/29/2018	0.00
10/30/2018	0.00
10/31/2018	0.00
11/1/2018	0.00
11/2/2018	0.00
11/3/2018	0.00
11/4/2018	0.00
11/5/2018	0.00
11/6/2018	0.00
11/7/2018	0.00
11/8/2018	0.00
11/9/2018	0.00
11/10/2018	0.00
11/11/2018	0.00
11/12/2018	0.00
11/13/2018	0.00
11/14/2018	0.00
11/15/2018	0.00
11/16/2018	0.00
11/17/2018	0.00
11/18/2018	0.00
11/19/2018	0.00
11/20/2018	0.00
11/21/2018		**
11/22/2018		**
11/23/2018		**
11/24/2018		**
11/25/2018		**
11/26/2018		2.42
11/27/2018
11/28/2018	0.15
11/29/2018	0.78
11/30/2018	0.39
12/1/2018		**
12/2/2018		**
12/3/2018		0.14
12/4/2018
12/5/2018	0.36
12/6/2018	0.13
12/7/2018
12/8/2018		**
12/9/2018		**
12/10/2018		0.03
12/11/2018		**
12/12/2018		T
12/13/2018	0.00
12/14/2018
12/15/2018		**
12/16/2018		**
12/17/2018		0.49
12/18/2018	0.01
12/19/2018
12/20/2018	T
12/21/2018	0.01
12/22/2018		**
12/23/2018		**
12/24/2018		**
12/25/2018		**
12/26/2018		**
12/27/2018		**
12/28/2018		**
12/29/2018		**
12/30/2018		**
12/31/2018		**

Day of Year	Daily Prcp	Multiday Prcp
1/1/2019		**
1/2/2019		**
1/3/2019		**
1/4/2019		**
1/5/2019		**
1/6/2019		**
1/7/2019		2.39
1/8/2019	0.01
1/9/2019	0.02
1/10/2019	0.01
1/11/2019	0.01
1/12/2019		**
1/13/2019		**
1/14/2019		0.16
1/15/2019	0.04
1/16/2019	0.52
1/17/2019	1.05
1/18/2019	0.09
1/19/2019		**
1/20/2019		**
1/21/2019		**
1/22/2019		0.52
1/23/2019	0.00
1/24/2019	0.00
1/25/2019	0.00
1/26/2019	0.00
1/27/2019	0.00
1/28/2019	0.00
1/29/2019	0.03
1/30/2019	T
1/31/2019	0.46
2/1/2019	0.01
2/2/2019		**
2/3/2019		**
2/4/2019		2.04
2/5/2019	0.61
2/6/2019	T
2/7/2019	T
2/8/2019	0.01
2/9/2019		**
2/10/2019		**
2/11/2019		1.35
2/12/2019		**
2/13/2019	0.60	0.60
2/14/2019	0.81
2/15/2019	0.92
2/16/2019		**
2/17/2019		**
2/18/2019		**
2/19/2019		0.74
2/20/2019	0.00
2/21/2019	0.00
2/22/2019	0.00
2/23/2019	0.00
2/24/2019	0.00
2/25/2019	0.00
2/26/2019	0.17
2/27/2019	0.72
2/28/2019	0.21
3/1/2019		**
3/2/2019		**
3/3/2019		**
3/4/2019		0.87
3/5/2019	0.10
3/6/2019	0.65
3/7/2019	0.25
3/8/2019	0.06
3/9/2019		**
3/10/2019		**
3/11/2019		0.70
3/12/2019
3/13/2019
3/14/2019
3/15/2019
3/16/2019
3/17/2019
3/18/2019
3/19/2019
3/20/2019
3/21/2019
3/22/2019	0.06
3/23/2019		**
3/24/2019		**
3/25/2019		0.54
3/26/2019	0.66
3/27/2019	0.04
3/28/2019	0.14
3/29/2019	0.09
3/30/2019		**
3/31/2019		**

Day of Year	Daily Prcp	Multiday Prcp
4/1/2019		**
4/2/2019		**
4/3/2019		**
4/4/2019		**
4/5/2019		**
4/6/2019		**
4/7/2019		**
4/8/2019		0.37
4/9/2019	0.03
4/10/2019
4/11/2019
4/12/2019
4/13/2019
4/14/2019
4/15/2019
4/16/2019	0.05
4/17/2019
4/18/2019
4/19/2019
4/20/2019
4/21/2019
4/22/2019
4/23/2019
4/24/2019
4/25/2019
4/26/2019
4/27/2019
4/28/2019
4/29/2019
4/30/2019
5/1/2019
5/2/2019
5/3/2019
5/4/2019
5/5/2019
5/6/2019
5/7/2019
5/8/2019
5/9/2019
5/10/2019
5/11/2019		**
5/12/2019		**
5/13/2019		**
5/14/2019		**
5/15/2019		**
5/16/2019		0.47
5/17/2019
5/18/2019		**
5/19/2019		**
5/20/2019		1.30
5/21/2019
5/22/2019
5/23/2019
5/24/2019
5/25/2019
5/26/2019
5/27/2019
5/28/2019
5/29/2019
5/30/2019
5/31/2019
6/1/2019
6/2/2019
6/3/2019
6/4/2019
6/5/2019
6/6/2019
6/7/2019
6/8/2019
6/9/2019
6/10/2019
6/11/2019
6/12/2019
6/13/2019
6/14/2019
6/15/2019
6/16/2019
6/17/2019
6/18/2019
6/19/2019
6/20/2019
6/21/2019
6/22/2019
6/23/2019
6/24/2019
6/25/2019
6/26/2019
6/27/2019
6/28/2019
6/29/2019
6/30/2019

Day of Year	Daily Prcp	Multiday Prcp
7/1/2019
7/2/2019
7/3/2019
7/4/2019
7/5/2019
7/6/2019
7/7/2019
7/8/2019
7/9/2019
7/10/2019
7/11/2019
7/12/2019
7/13/2019
7/14/2019
7/15/2019
7/16/2019
7/17/2019
7/18/2019
7/19/2019
7/20/2019
7/21/2019
7/22/2019
7/23/2019
7/24/2019
7/25/2019
7/26/2019
7/27/2019
7/28/2019
7/29/2019
7/30/2019
7/31/2019
8/1/2019
8/2/2019
8/3/2019
8/4/2019
8/5/2019
8/6/2019
8/7/2019
8/8/2019
8/9/2019
8/10/2019
8/11/2019
8/12/2019
8/13/2019
8/14/2019
8/15/2019
8/16/2019
8/17/2019
8/18/2019
8/19/2019
8/20/2019
8/21/2019
8/22/2019
8/23/2019
8/24/2019
8/25/2019
8/26/2019
8/27/2019
8/28/2019
8/29/2019
8/30/2019
8/31/2019
9/1/2019
9/2/2019
9/3/2019
9/4/2019
9/5/2019
9/6/2019
9/7/2019
9/8/2019
9/9/2019
9/10/2019
9/11/2019
9/12/2019
9/13/2019
9/14/2019
9/15/2019
9/16/2019
9/17/2019
9/18/2019
9/19/2019
9/20/2019
9/21/2019
9/22/2019
9/23/2019
9/24/2019
9/25/2019
9/26/2019
9/27/2019
9/28/2019
9/29/2019
9/30/2019

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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Observation Date	Observation Time	Precipitation	Snowfall	Snowfall SWE	Snow Depth	Snow SWE	Notes
10/2/2018	8:00 AM	0.05	M	M	M	M
10/3/2018	8:00 AM	T	M	M	M	M
10/4/2018	8:00 AM	0.00	0.0	M	M	M
10/5/2018	8:00 AM	0.00	0.0	M	M	M
10/6/2018	8:00 AM	0.00	0.0	M	M	M
10/7/2018	8:00 AM	0.00	0.0	M	M	M
10/8/2018	8:00 AM	0.00	0.0	M	M	M
10/9/2018	8:00 AM	0.00	0.0	M	M	M
10/10/2018	8:00 AM	0.00	0.0	M	M	M
10/11/2018	8:00 AM	0.00	0.0	M	M	M
10/12/2018	8:00 AM	0.00	0.0	M	M	M
10/13/2018	8:00 AM	0.00	0.0	M	M	M
10/14/2018	8:00 AM	0.00	0.0	M	M	M
10/15/2018	8:00 AM	0.00	0.0	M	M	M
10/16/2018	8:00 AM	0.00	0.0	M	M	M
10/17/2018	8:00 AM	0.00	0.0	M	M	M
10/18/2018	8:00 AM	0.00	0.0	M	M	M
10/19/2018	8:00 AM	0.00	0.0	M	M	M
10/20/2018	8:00 AM	0.00	0.0	M	M	M
10/21/2018	8:00 AM	0.00	0.0	M	M	M
10/22/2018	8:00 AM	0.00	0.0	M	M	M
10/23/2018	8:00 AM	0.00	0.0	M	M	M
10/24/2018	8:00 AM	0.00	0.0	M	M	M
10/25/2018	8:00 AM	0.00	0.0	M	M	M
10/26/2018	8:00 AM	0.00	0.0	M	M	M
10/27/2018	8:00 AM	0.00	0.0	M	M	M
10/28/2018	8:00 AM	0.00	0.0	M	M	M
10/29/2018	8:00 AM	0.00	0.0	M	M	M
10/30/2018	8:00 AM	0.00	0.0	M	M	M
10/31/2018	8:00 AM	0.00	0.0	M	M	M
11/1/2018	8:00 AM	0.00	0.0	M	M	M
11/2/2018	8:00 AM	0.00	0.0	M	M	M
11/3/2018	8:00 AM	0.00	0.0	M	M	M
11/4/2018	8:00 AM	0.00	0.0	M	M	M
11/5/2018	8:00 AM	0.00	0.0	M	M	M
11/6/2018	8:00 AM	0.00	0.0	M	M	M
11/7/2018	8:00 AM	0.00	0.0	M	M	M
11/8/2018	8:00 AM	0.00	0.0	M	M	M
11/9/2018	8:00 AM	0.00	0.0	M	M	M
11/10/2018	8:00 AM	0.00	0.0	M	M	M
11/11/2018	8:00 AM	0.00	0.0	M	M	M
11/12/2018	8:00 AM	0.00	0.0	M	M	M
11/13/2018	8:00 AM	0.00	0.0	M	M	M
11/14/2018	8:00 AM	0.00	0.0	M	M	M
11/15/2018	8:00 AM	0.00	0.0	M	M	M
11/16/2018	8:00 AM	0.00	0.0	M	M	M
11/17/2018	8:00 AM	0.00	0.0	M	M	M
11/18/2018	8:00 AM	0.00	0.0	M	M	M
11/19/2018	8:00 AM	0.00	0.0	M	M	M
11/20/2018	8:00 AM	0.00	0.0	M	M	M
11/28/2018	8:00 AM	0.15	M	M	M	M
11/29/2018	7:30 AM	0.78	M	M	M	M	includes showers from prev 30 minutes
11/30/2018	8:00 AM	0.39	M	M	M	M
12/5/2018	8:00 AM	0.36	M	M	M	M
12/6/2018	8:00 AM	0.13	M	M	M	M
12/13/2018	8:00 AM	0.00	0.0	M	M	M
12/18/2018	8:00 AM	0.01	M	M	M	M
12/20/2018	8:00 AM	T	M	M	M	M	heavy fog
12/21/2018	7:30 AM	0.01	M	M	M	M	sprinkles/light rain at obs. time
1/8/2019	7:30 AM	0.01	M	M	M	M	barely 0.01, with light rain/drizzle at obs time
1/9/2019	7:30 AM	0.02	M	M	M	M
1/10/2019	7:45 AM	0.01	M	M	M	M
1/11/2019	8:00 AM	0.01	M	M	M	M
1/15/2019	7:30 AM	0.04	M	M	M	M	v light rain at obs time... lots more on the way!!
1/16/2019	7:20 AM	0.52	M	M	M	M
1/17/2019	7:30 AM	1.05	M	M	M	M
1/18/2019	7:30 AM	0.09	M	M	M	M
1/23/2019	8:00 AM	0.00	0.0	M	M	M
1/24/2019	8:00 AM	0.00	0.0	M	M	M
1/25/2019	8:00 AM	0.00	0.0	M	M	M
1/26/2019	8:00 AM	0.00	0.0	M	M	M
1/27/2019	8:00 AM	0.00	0.0	M	M	M
1/28/2019	8:00 AM	0.00	0.0	M	M	M
1/29/2019	8:00 AM	0.03	M	M	M	M
1/30/2019	7:30 AM	T	M	M	M	M
1/31/2019	8:00 AM	0.46	M	M	M	M
2/1/2019	7:30 AM	0.01	M	M	M	M
2/5/2019	3:30 PM	0.61	M	M	M	M
2/6/2019	8:00 AM	T	0.0	M	M	M
2/7/2019	8:00 AM	T	0.0	M	M	M	Spots on the windshield about 2-3 pm as showers moved across areas farther south.
2/8/2019	7:45 AM	0.01	M	M	M	M
2/13/2019	7:30 AM	0.60	M	M	M	M
2/14/2019	8:00 AM	0.81	M	M	M	M
2/15/2019	7:45 AM	0.92	M	M	M	M
2/20/2019	8:00 AM	0.00	0.0	M	M	M
2/21/2019	8:00 AM	0.00	0.0	M	M	M
2/22/2019	8:00 AM	0.00	0.0	M	M	M
2/23/2019	8:00 AM	0.00	0.0	M	M	M
2/24/2019	8:00 AM	0.00	0.0	M	M	M
2/25/2019	8:00 AM	0.00	0.0	M	M	M
2/26/2019	7:45 AM	0.17	M	M	M	M	a little shy of the 1+ inches forecast...
2/27/2019	7:45 AM	0.72	M	M	M	M
2/28/2019	8:00 AM	0.21	M	M	M	M
3/5/2019	7:30 AM	0.10	M	M	M	M
3/6/2019	7:30 AM	0.65	M	M	M	M
3/7/2019	8:00 AM	0.25	M	M	M	M
3/8/2019	8:00 AM	0.06	M	M	M	M
3/22/2019	8:00 AM	0.06	M	M	M	M
3/26/2019	7:45 AM	0.66	M	M	M	M	auto gauge on site recorded 0.65 for the same period
3/27/2019	7:45 AM	0.04	M	M	M	M
3/28/2019	7:45 AM	0.14	M	M	M	M
3/29/2019	7:45 AM	0.09	M	M	M	M
4/9/2019	8:00 AM	0.03	M	M	M	M
4/16/2019	8:00 AM	0.05	M	M	M	M

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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Start Date	End Date & Time	Duration in Days	Precipitation	Snow Depth	Snow Depth SWE	Notes
11/21/2018	11/26/2018 8:00 AM	6	2.42	M	M	Auto gauge on site recorded 2.56 for the same period
12/1/2018	12/03/2018 7:45 AM	3	0.14	M	M
12/8/2018	12/10/2018 7:45 AM	3	0.03	M	M
12/11/2018	12/12/2018 8:00 AM	2	T	M	M	foggy mornings
12/15/2018	12/17/2018 7:45 AM	3	0.49	M	M
12/22/2018	1/07/2019 10:00 AM	17	2.39	M	M	School was out for the past 2 weeks; Auto gauge on site recorded 2.44 during same period
1/12/2019	1/14/2019 8:00 AM	3	0.16	M	M
1/19/2019	1/22/2019 7:30 AM	4	0.52	M	M
2/2/2019	2/04/2019 7:30 AM	3	2.04	M	M	0.87" since midnight... max. rain rate of 4 in/hr @2:36 AM this morning... https://twitter.com/AHSweather/status/1092377228996796416
2/9/2019	2/11/2019 7:30 AM	3	1.35	M	M
2/12/2019	2/13/2019 7:30 AM	2	0.60	M	M
2/16/2019	2/19/2019 8:00 AM	4	0.74	M	M
3/1/2019	3/04/2019 7:45 AM	4	0.87	M	M
3/9/2019	3/11/2019 8:00 AM	3	0.70	M	M	this data from auto gauge on site... cocorahs cylinder was removed during local construction... will reposition soon :-)
3/23/2019	3/25/2019 7:30 AM	3	0.54	M	M	inner cylinder out of seat; gremlins at the softball field? :-/ (auto gauge on site recorded 0.59 during same period)
3/30/2019	4/08/2019 8:00 AM	10	0.37	M	M
5/11/2019	5/16/2019 8:00 AM	6	0.47	M	M	most accumulated 5/15 pm
5/18/2019	5/20/2019 8:00 AM	3	1.30	M	M

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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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