CoCoRaHS Station WYS : CO-BO-489

2018 CoCoRaHS Water Year Summary for Station CO-BO-489 Report generated on October 3, 2019

Station Overview		Station Location
Station Number	CO-BO-489	Latitude	40.02247
Station Name	Boulder 2.1 W	Longitude	-105.28986
County	Boulder	Elevation (ft)	5474

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	Days With Prcp	Days With Trace	Total Snowfall	Days With Snowfall	Days With Snow On Ground
Oct 17	1.38	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Nov 17	1.18	0.08	19	0.08	19	0.00	0	2	1	0.0	0	0
Dec 17	0.86	0.44	21	0.44	21	0.00	0	2	1	3.3	2	3
Jan 18	0.69	0.00	15	0.00	15	0.00	0	0	1	0.0	0	0
Feb 18	0.76	0.91	24	0.91	24	0.00	0	8	4	14.6	7	12
March 18	1.92	2.06	29	2.06	29	0.00	0	6	0	4.9	3	4
April 18	2.43	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
May 18	2.97	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
June 18	2.54	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
July 18	1.71	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Aug 18	1.78	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Sept 18	1.44	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Water Year Totals:	19.66"	3.49"	108 days	3.49"	108	0.00"	0 days	18 days	7 days	22.8"	12 days	19 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
10/1/2017
10/2/2017
10/3/2017
10/4/2017
10/5/2017
10/6/2017
10/7/2017
10/8/2017
10/9/2017
10/10/2017
10/11/2017
10/12/2017
10/13/2017
10/14/2017
10/15/2017
10/16/2017
10/17/2017
10/18/2017
10/19/2017
10/20/2017
10/21/2017
10/22/2017
10/23/2017
10/24/2017
10/25/2017
10/26/2017
10/27/2017
10/28/2017
10/29/2017
10/30/2017
10/31/2017
11/1/2017
11/2/2017
11/3/2017
11/4/2017
11/5/2017
11/6/2017
11/7/2017
11/8/2017
11/9/2017
11/10/2017
11/11/2017
11/12/2017	0.00
11/13/2017	0.00
11/14/2017	0.00
11/15/2017	0.00
11/16/2017	0.00
11/17/2017	0.00
11/18/2017	0.05
11/19/2017	0.00
11/20/2017	0.00
11/21/2017	0.00
11/22/2017	0.03
11/23/2017	0.00
11/24/2017	0.00
11/25/2017	0.00
11/26/2017	0.00
11/27/2017	0.00
11/28/2017	T
11/29/2017	0.00
11/30/2017	0.00
12/1/2017	0.00
12/2/2017	0.00
12/3/2017	0.00
12/4/2017	0.00
12/5/2017	0.00
12/6/2017	0.00
12/7/2017	0.00
12/8/2017	0.00
12/9/2017	0.00
12/10/2017	0.00
12/11/2017	0.00
12/12/2017	0.00
12/13/2017	0.00
12/14/2017	0.27
12/15/2017	0.00
12/16/2017	T
12/17/2017	0.00
12/18/2017	0.00
12/19/2017	0.00
12/20/2017	0.00
12/21/2017	0.17
12/22/2017
12/23/2017
12/24/2017
12/25/2017
12/26/2017
12/27/2017
12/28/2017
12/29/2017
12/30/2017
12/31/2017

Day of Year	Daily Prcp	Multiday Prcp
1/1/2018	0.00
1/2/2018	0.00
1/3/2018	0.00
1/4/2018	0.00
1/5/2018	0.00
1/6/2018	0.00
1/7/2018	0.00
1/8/2018	0.00
1/9/2018	0.00
1/10/2018	0.00
1/11/2018	T
1/12/2018	0.00
1/13/2018	0.00
1/14/2018	0.00
1/15/2018	M
1/16/2018
1/17/2018
1/18/2018
1/19/2018
1/20/2018
1/21/2018
1/22/2018
1/23/2018
1/24/2018
1/25/2018
1/26/2018
1/27/2018
1/28/2018
1/29/2018
1/30/2018
1/31/2018	0.00
2/1/2018	0.02
2/2/2018	T
2/3/2018	0.00
2/4/2018	0.01
2/5/2018	0.01
2/6/2018	T
2/7/2018	0.00
2/8/2018	0.00
2/9/2018	T
2/10/2018	0.11
2/11/2018	0.10
2/12/2018	T
2/13/2018
2/14/2018
2/15/2018
2/16/2018
2/17/2018	0.00
2/18/2018	0.00
2/19/2018	0.03
2/20/2018	0.45
2/21/2018	0.00
2/22/2018	0.00
2/23/2018	0.00
2/24/2018	0.18
2/25/2018	0.00
2/26/2018	0.00
2/27/2018	0.00
2/28/2018	0.00
3/1/2018	0.00
3/2/2018	0.00
3/3/2018	0.00
3/4/2018	0.00
3/5/2018	0.00
3/6/2018	0.00
3/7/2018	0.00
3/8/2018	0.00
3/9/2018	0.00
3/10/2018	0.00
3/11/2018
3/12/2018	0.00
3/13/2018	0.00
3/14/2018	0.00
3/15/2018	0.00
3/16/2018	0.11
3/17/2018	0.00
3/18/2018	0.00
3/19/2018	0.68
3/20/2018	0.00
3/21/2018	0.00
3/22/2018	0.00
3/23/2018	0.00
3/24/2018	0.00
3/25/2018	0.00
3/26/2018	0.07
3/27/2018	0.58
3/28/2018	0.00
3/29/2018	0.47
3/30/2018	0.15
3/31/2018

Day of Year	Daily Prcp	Multiday Prcp
4/1/2018
4/2/2018
4/3/2018
4/4/2018
4/5/2018
4/6/2018
4/7/2018
4/8/2018
4/9/2018
4/10/2018
4/11/2018
4/12/2018
4/13/2018
4/14/2018
4/15/2018
4/16/2018
4/17/2018
4/18/2018
4/19/2018
4/20/2018
4/21/2018
4/22/2018
4/23/2018
4/24/2018
4/25/2018
4/26/2018
4/27/2018
4/28/2018
4/29/2018
4/30/2018
5/1/2018
5/2/2018
5/3/2018
5/4/2018
5/5/2018
5/6/2018
5/7/2018
5/8/2018
5/9/2018
5/10/2018
5/11/2018
5/12/2018
5/13/2018
5/14/2018
5/15/2018
5/16/2018
5/17/2018
5/18/2018
5/19/2018
5/20/2018
5/21/2018
5/22/2018
5/23/2018
5/24/2018
5/25/2018
5/26/2018
5/27/2018
5/28/2018
5/29/2018
5/30/2018
5/31/2018
6/1/2018
6/2/2018
6/3/2018
6/4/2018
6/5/2018
6/6/2018
6/7/2018
6/8/2018
6/9/2018
6/10/2018
6/11/2018
6/12/2018
6/13/2018
6/14/2018
6/15/2018
6/16/2018
6/17/2018
6/18/2018
6/19/2018
6/20/2018
6/21/2018
6/22/2018
6/23/2018
6/24/2018
6/25/2018
6/26/2018
6/27/2018
6/28/2018
6/29/2018
6/30/2018

Day of Year	Daily Prcp	Multiday Prcp
7/1/2018
7/2/2018
7/3/2018
7/4/2018
7/5/2018
7/6/2018
7/7/2018
7/8/2018
7/9/2018
7/10/2018
7/11/2018
7/12/2018
7/13/2018
7/14/2018
7/15/2018
7/16/2018
7/17/2018
7/18/2018
7/19/2018
7/20/2018
7/21/2018
7/22/2018
7/23/2018
7/24/2018
7/25/2018
7/26/2018
7/27/2018
7/28/2018
7/29/2018
7/30/2018
7/31/2018
8/1/2018
8/2/2018
8/3/2018
8/4/2018
8/5/2018
8/6/2018
8/7/2018
8/8/2018
8/9/2018
8/10/2018
8/11/2018
8/12/2018
8/13/2018
8/14/2018
8/15/2018
8/16/2018
8/17/2018
8/18/2018
8/19/2018
8/20/2018
8/21/2018
8/22/2018
8/23/2018
8/24/2018
8/25/2018
8/26/2018
8/27/2018
8/28/2018
8/29/2018
8/30/2018
8/31/2018
9/1/2018
9/2/2018
9/3/2018
9/4/2018
9/5/2018
9/6/2018
9/7/2018
9/8/2018
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018
9/21/2018
9/22/2018
9/23/2018
9/24/2018
9/25/2018
9/26/2018
9/27/2018
9/28/2018
9/29/2018
9/30/2018

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
11/12/2017	7:08 AM	0.00	0.0	M	M	M
11/13/2017	7:00 AM	0.00	0.0	M	M	M
11/14/2017	7:00 AM	0.00	0.0	M	M	M
11/15/2017	7:00 AM	0.00	0.0	M	M	M
11/16/2017	7:00 AM	0.00	0.0	M	M	M
11/17/2017	7:00 AM	0.00	0.0	M	M	M
11/18/2017	7:00 AM	0.05	M	M	M	M
11/19/2017	7:00 AM	0.00	0.0	M	M	M
11/20/2017	7:00 AM	0.00	0.0	M	M	M
11/21/2017	7:00 AM	0.00	0.0	M	M	M
11/22/2017	7:00 AM	0.03	M	M	M	M	Measured at 6:00pm 11/21/2017
11/23/2017	7:00 AM	0.00	0.0	M	M	M
11/24/2017	7:00 AM	0.00	0.0	M	M	M
11/25/2017	7:00 AM	0.00	0.0	M	M	M	There was a brief bit of rain yesterday afternoon. I didn’t measure this thinking it might rain some more. It had evaporated by this morning.
11/26/2017	7:00 AM	0.00	0.0	M	M	M
11/27/2017	7:00 AM	0.00	0.0	M	M	M
11/28/2017	7:00 AM	T	M	M	M	M	There was moisture on the ground, vehicle, lawn furniture and some on the outside of the tube, but not a drop on the inside of the tube.
11/29/2017	7:00 AM	0.00	0.0	M	M	M
11/30/2017	7:00 AM	0.00	0.0	M	M	M
12/1/2017	7:00 AM	0.00	0.0	M	M	M
12/2/2017	7:00 AM	0.00	0.0	M	M	M
12/3/2017	7:00 AM	0.00	0.0	M	M	M
12/4/2017	7:00 AM	0.00	0.0	M	M	M
12/5/2017	7:00 AM	0.00	0.0	M	M	M
12/6/2017	7:00 AM	0.00	0.0	M	M	M
12/7/2017	7:00 AM	0.00	0.0	M	M	M
12/8/2017	7:00 AM	0.00	0.0	M	M	M
12/9/2017	7:00 AM	0.00	0.0	M	M	M
12/10/2017	7:00 AM	0.00	0.0	M	M	M
12/11/2017	7:00 AM	0.00	0.0	M	M	M
12/12/2017	7:00 AM	0.00	0.0	M	M	M
12/13/2017	7:00 AM	0.00	0.0	M	M	M
12/14/2017	7:00 AM	0.27	1.3	0.27	1.5	0.18	New snowfall measured on the board was 1.3 inches and on a nearby table was 1.8 inches. 1.5 inches depth of total snow measured on the ground was likely due to additional depth of grass.
12/15/2017	7:00 AM	0.00	0.0	M	1.0	0.17
12/16/2017	7:00 AM	T	M	M	M	M	There were 7-12 specks of snow in the cylinder.
12/17/2017	7:00 AM	0.00	0.0	M	M	M
12/18/2017	7:00 AM	0.00	0.0	M	M	M
12/19/2017	7:00 AM	0.00	0.0	M	M	M
12/20/2017	7:00 AM	0.00	0.0	M	M	M
12/21/2017	7:31 AM	0.17	2.0	0.19	2.0	0.13
1/1/2018	7:00 AM	0.00	0.0	M	T	M
1/2/2018	7:00 AM	0.00	0.0	M	T	M
1/3/2018	7:00 AM	0.00	0.0	M	T	M
1/4/2018	7:00 AM	0.00	0.0	M	T	M
1/5/2018	7:00 AM	0.00	0.0	M	T	M
1/6/2018	7:00 AM	0.00	0.0	M	T	M
1/7/2018	7:00 AM	0.00	0.0	M	T	M
1/8/2018	7:00 AM	0.00	0.0	M	M	M
1/9/2018	7:00 AM	0.00	0.0	M	M	M
1/10/2018	7:00 AM	0.00	0.0	M	M	M
1/11/2018	7:00 AM	T	M	M	M	M
1/12/2018	7:00 AM	0.00	0.0	M	M	M
1/13/2018	7:00 AM	0.00	0.0	M	M	M
1/14/2018	7:00 AM	0.00	0.0	M	M	M
1/15/2018	7:00 AM	M	M	M	M	M	Oops, there’re was a coat of ice in the bottom of the cylinder. I missed some of the tube when I was pouring the liquid back into it for the measure...hopefully I’ll do better tomorrow!
1/31/2018	7:00 AM	0.00	0.0	M	T	M
2/1/2018	7:00 AM	0.02	0.2	0.05	T	M
2/2/2018	7:00 AM	T	0.1	T	T	0.05
2/3/2018	7:00 AM	0.00	0.0	M	T	M
2/4/2018	7:00 AM	0.01	M	M	M	M	Freezing rain
2/5/2018	7:20 AM	0.01	M	M	M	M
2/6/2018	7:15 AM	T	T	M	T	M
2/7/2018	7:00 AM	0.00	0.0	M	M	M
2/8/2018	7:00 AM	0.00	0.0	M	M	M
2/9/2018	7:20 AM	T	M	M	M	M	A few flakes
2/10/2018	7:45 AM	0.11	1.5	0.12	1.5	0.08
2/11/2018	7:37 AM	0.10	1.8	0.10	3.0	0.18
2/12/2018	7:18 AM	T	T	M	1.0	0.12
2/17/2018	7:00 AM	0.00	0.0	M	M	M
2/18/2018	7:00 AM	0.00	0.0	M	M	M
2/19/2018	7:00 AM	0.03	1.5	0.02	1.5	0.01
2/20/2018	7:15 AM	0.45	6.0	0.48	7.5	0.48	Measured 8.5 inches of snow accumulation on the glass table
2/21/2018	7:25 AM	0.00	0.0	M	5.0	0.49
2/22/2018	7:00 AM	0.00	0.0	M	4.0	0.48
2/23/2018	8:45 AM	0.00	0.0	M	4.0	0.47
2/24/2018	7:04 AM	0.18	3.5	0.18	7.0	0.96
2/25/2018	7:15 AM	0.00	0.0	M	5.0	0.72
2/26/2018	7:10 AM	0.00	0.0	M	4.0	0.64
2/27/2018	7:00 AM	0.00	0.0	M	M	M
2/28/2018	7:15 AM	0.00	0.0	M	3.0	0.69
3/1/2018	7:21 AM	0.00	0.0	M	2.0	0.45	Snow pack on the ground 0”-2”+ with about 3/4 yard still covered.
3/2/2018	7:30 AM	0.00	0.0	M	M	M	Traces of snow remain in the yard.
3/3/2018	7:00 AM	0.00	0.0	M	M	M
3/4/2018	7:00 AM	0.00	0.0	M	M	M
3/5/2018	7:00 AM	0.00	0.0	M	M	M
3/6/2018	7:00 AM	0.00	0.0	M	M	M
3/7/2018	7:00 AM	0.00	0.0	M	M	M
3/8/2018	7:00 AM	0.00	0.0	M	M	M
3/9/2018	7:00 AM	0.00	0.0	M	M	M
3/10/2018	7:00 AM	0.00	0.0	M	M	M
3/12/2018	7:00 AM	0.00	0.0	M	M	M
3/13/2018	7:00 AM	0.00	0.0	M	M	M
3/14/2018	7:00 AM	0.00	0.0	M	M	M
3/15/2018	7:00 AM	0.00	0.0	M	M	M
3/16/2018	7:40 AM	0.11	M	M	M	M
3/17/2018	7:00 AM	0.00	0.0	M	M	M
3/18/2018	7:00 AM	0.00	0.0	M	M	M
3/19/2018	7:20 AM	0.68	0.4	M	0.5	0.67	Precipitation was hail, snow and rain mix. I wasn’t able to take a core sample from the board since it was frozen hard this AM.
3/20/2018	7:00 AM	0.00	0.0	M	M	M
3/21/2018	7:00 AM	0.00	0.0	M	M	M
3/22/2018	7:00 AM	0.00	0.0	M	M	M
3/23/2018	7:00 AM	0.00	0.0	M	M	M
3/24/2018	7:00 AM	0.00	0.0	M	M	M
3/25/2018	7:00 AM	0.00	0.0	M	M	M
3/26/2018	7:00 AM	0.07	M	M	M	M
3/27/2018	7:31 AM	0.58	3.1	0.41	3.5	0.39	There was a thin layer of ice on the board and a snow crown on the tube rim. The snow crown was addressed with a swack, some landing in and some landing outside the tube.
3/28/2018	7:00 AM	0.00	0.0	M	M	M
3/29/2018	7:00 AM	0.47	1.4	0.20	1.0	0.16	Ice and snow on board
3/30/2018	7:00 AM	0.15	T	M	T	M	Mostly crusted ice on board. Scattered snow and ice on ground.

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

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