CoCoRaHS Station WYS : CO-BO-159

2017 CoCoRaHS Water Year Summary for Station CO-BO-159 Report generated on October 3, 2019

Station Overview		Station Location
Station Number	CO-BO-159	Latitude	40.0395
Station Name	Boulder 3.6 WNW	Longitude	-105.3275
County	Boulder	Elevation (ft)	6906

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 16	1.46	0.52	15	0.52	15	0.00	0	5	0	0.0	0	0
Nov 16	1.39	0.12	10	0.12	10	0.00	0	3	0	2.1	1	1
Dec 16	0.93	0.88	10	0.88	10	0.00	0	4	1	10.8	4	5
Jan 17	0.79	0.92	14	0.92	14	0.00	0	3	6	16.0	3	3
Feb 17	0.91	0.80	6	0.80	6	0.00	0	4	0	9.2	4	4
March 17	2.06	0.00	1	0.00	1	0.00	0	0	0	0.0	0	0
April 17	2.78	3.12	13	3.12	13	0.00	0	9	0	23.2	6	7
May 17	3.08	6.98	19	6.98	19	0.00	0	17	1	20.1	3	6
June 17	2.72	0.31	13	0.31	13	0.00	0	5	1	0.0	0	0
July 17	1.92	0.98	6	0.98	6	0.00	0	3	0	0.0	0	0
Aug 17	1.93	2.08	26	2.08	26	0.00	0	12	0	0.0	0	0
Sept 17	1.74	2.24	28	2.24	28	0.00	0	10	1	0.0	0	0
Water Year Totals:	21.71"	18.95"	161 days	18.95"	161	0.00"	0 days	75 days	10 days	81.4"	21 days	26 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
10/1/2016
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016	0.13
10/7/2016	0.05
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016	0.17
10/13/2016	0.03
10/14/2016	0.00
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016	0.14
10/20/2016	0.00
10/21/2016	0.00
10/22/2016	0.00
10/23/2016
10/24/2016	0.00
10/25/2016
10/26/2016	0.00
10/27/2016	0.00
10/28/2016	0.00
10/29/2016	0.00
10/30/2016
10/31/2016	0.00
11/1/2016
11/2/2016	0.03
11/3/2016	0.00
11/4/2016
11/5/2016	0.00
11/6/2016	0.00
11/7/2016	0.00
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016	0.00
11/17/2016	0.03
11/18/2016	0.06
11/19/2016
11/20/2016	0.00
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016	0.00
12/1/2016	0.00
12/2/2016	0.00
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016	0.50
12/8/2016	0.02
12/9/2016
12/10/2016
12/11/2016	0.06
12/12/2016
12/13/2016
12/14/2016	T
12/15/2016	0.00
12/16/2016	0.00
12/17/2016	0.30
12/18/2016
12/19/2016
12/20/2016	0.00
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016

Day of Year	Daily Prcp	Multiday Prcp
1/1/2017
1/2/2017	0.00
1/3/2017	0.09
1/4/2017
1/5/2017	0.77
1/6/2017	T
1/7/2017
1/8/2017	T
1/9/2017	0.00
1/10/2017
1/11/2017	0.00
1/12/2017	T
1/13/2017	T
1/14/2017
1/15/2017	0.00
1/16/2017	0.06
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017	T
1/24/2017	T
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017	0.00
1/30/2017
1/31/2017
2/1/2017
2/2/2017	0.13
2/3/2017
2/4/2017
2/5/2017	0.00
2/6/2017	0.00
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017	0.26
2/24/2017	0.28
2/25/2017	0.13
2/26/2017
2/27/2017
2/28/2017
3/1/2017
3/2/2017
3/3/2017
3/4/2017
3/5/2017	0.00
3/6/2017
3/7/2017
3/8/2017
3/9/2017
3/10/2017
3/11/2017
3/12/2017
3/13/2017
3/14/2017
3/15/2017
3/16/2017
3/17/2017
3/18/2017
3/19/2017
3/20/2017
3/21/2017
3/22/2017
3/23/2017
3/24/2017
3/25/2017
3/26/2017
3/27/2017
3/28/2017
3/29/2017
3/30/2017
3/31/2017

Day of Year	Daily Prcp	Multiday Prcp
4/1/2017
4/2/2017
4/3/2017
4/4/2017	0.81
4/5/2017	0.45
4/6/2017	0.00
4/7/2017	0.00
4/8/2017	0.00
4/9/2017
4/10/2017
4/11/2017
4/12/2017
4/13/2017
4/14/2017
4/15/2017
4/16/2017
4/17/2017
4/18/2017
4/19/2017
4/20/2017
4/21/2017	0.31
4/22/2017	0.24
4/23/2017
4/24/2017
4/25/2017	0.03
4/26/2017	0.02
4/27/2017	0.00
4/28/2017	0.04
4/29/2017	0.89
4/30/2017	0.33
5/1/2017	0.00
5/2/2017
5/3/2017	0.06
5/4/2017	0.16
5/5/2017
5/6/2017
5/7/2017
5/8/2017	0.02
5/9/2017	0.62
5/10/2017	0.01
5/11/2017	1.56
5/12/2017
5/13/2017
5/14/2017
5/15/2017
5/16/2017
5/17/2017	0.03
5/18/2017	1.46
5/19/2017	2.10
5/20/2017	T
5/21/2017
5/22/2017	0.25
5/23/2017	0.16
5/24/2017
5/25/2017
5/26/2017	0.20
5/27/2017	0.04
5/28/2017	0.18
5/29/2017	0.05
5/30/2017	0.06
5/31/2017	0.02
6/1/2017	0.01
6/2/2017	0.01
6/3/2017	0.12
6/4/2017	0.00
6/5/2017	0.00
6/6/2017	T
6/7/2017	0.00
6/8/2017	0.10
6/9/2017	0.07
6/10/2017	0.00
6/11/2017	0.00
6/12/2017	0.00
6/13/2017	0.00
6/14/2017
6/15/2017
6/16/2017
6/17/2017
6/18/2017
6/19/2017
6/20/2017
6/21/2017
6/22/2017
6/23/2017
6/24/2017
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017
6/30/2017

Day of Year	Daily Prcp	Multiday Prcp
7/1/2017
7/2/2017
7/3/2017
7/4/2017
7/5/2017
7/6/2017
7/7/2017
7/8/2017
7/9/2017
7/10/2017
7/11/2017
7/12/2017
7/13/2017
7/14/2017
7/15/2017
7/16/2017
7/17/2017
7/18/2017
7/19/2017
7/20/2017
7/21/2017
7/22/2017
7/23/2017
7/24/2017
7/25/2017
7/26/2017	0.15
7/27/2017	0.77
7/28/2017	0.00
7/29/2017	0.06
7/30/2017	0.00
7/31/2017	0.00
8/1/2017	0.00
8/2/2017	0.00
8/3/2017	0.10
8/4/2017	0.04
8/5/2017
8/6/2017	0.23
8/7/2017	0.08
8/8/2017	0.87
8/9/2017	0.09
8/10/2017	0.05
8/11/2017	0.17
8/12/2017	0.02
8/13/2017	0.00
8/14/2017
8/15/2017
8/16/2017	0.09
8/17/2017	0.06
8/18/2017
8/19/2017	0.00
8/20/2017	0.00
8/21/2017	0.00
8/22/2017	0.00
8/23/2017	0.00
8/24/2017
8/25/2017	0.28
8/26/2017	0.00
8/27/2017	0.00
8/28/2017	0.00
8/29/2017	0.00
8/30/2017	0.00
8/31/2017	0.00
9/1/2017	0.00
9/2/2017	0.00
9/3/2017	0.00
9/4/2017	0.00
9/5/2017	0.00
9/6/2017	0.00
9/7/2017	0.00
9/8/2017	0.00
9/9/2017	0.00
9/10/2017	0.00
9/11/2017	0.00
9/12/2017	0.02
9/13/2017	0.00
9/14/2017	0.05
9/15/2017	T
9/16/2017
9/17/2017	0.01
9/18/2017	0.00
9/19/2017	0.00
9/20/2017	0.00
9/21/2017	0.00
9/22/2017
9/23/2017	0.00
9/24/2017	0.83
9/25/2017	0.52
9/26/2017	0.03
9/27/2017	0.03
9/28/2017	0.40
9/29/2017	0.32
9/30/2017	0.03

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
Top of Page

Observation Date	Observation Time	Precipitation	Snowfall	Snowfall SWE	Snow Depth	Snow SWE	Notes
10/6/2016	7:00 AM	0.13	M	M	M	M
10/7/2016	7:00 AM	0.05	M	M	M	M
10/12/2016	7:00 AM	0.17	M	M	M	M
10/13/2016	7:00 AM	0.03	M	M	M	M
10/14/2016	7:00 AM	0.00	0.0	M	M	M
10/19/2016	7:00 AM	0.14	M	M	M	M
10/20/2016	7:00 AM	0.00	0.0	M	M	M
10/21/2016	7:00 AM	0.00	0.0	M	M	M
10/22/2016	7:00 AM	0.00	0.0	M	M	M
10/24/2016	7:00 AM	0.00	0.0	M	M	M
10/26/2016	7:00 AM	0.00	0.0	M	M	M
10/27/2016	7:00 AM	0.00	0.0	M	M	M
10/28/2016	7:00 AM	0.00	0.0	M	M	M
10/29/2016	7:00 AM	0.00	0.0	M	M	M
10/31/2016	7:00 AM	0.00	0.0	M	M	M
11/2/2016	7:00 AM	0.03	M	M	M	M
11/3/2016	7:00 AM	0.00	0.0	M	M	M
11/5/2016	7:00 AM	0.00	0.0	M	M	M
11/6/2016	7:00 AM	0.00	0.0	M	M	M
11/7/2016	7:00 AM	0.00	0.0	M	M	M
11/16/2016	7:00 AM	0.00	0.0	M	M	M
11/17/2016	7:00 AM	0.03	M	M	M	M	Freezing rain changing to snow 11 AM
11/18/2016	7:00 AM	0.06	2.1	M	2.1	M
11/20/2016	7:00 AM	0.00	0.0	M	M	M
11/30/2016	7:00 AM	0.00	0.0	M	M	M
12/1/2016	7:00 AM	0.00	0.0	M	M	M
12/2/2016	7:00 AM	0.00	0.0	M	M	M
12/7/2016	7:00 AM	0.50	7.2	0.50	7.2	M
12/8/2016	7:00 AM	0.02	0.3	M	6.8	0.02
12/11/2016	9:00 AM	0.06	0.5	0.06	0.5	M
12/14/2016	7:00 AM	T	T	T	T	T	Light snow began around 6:30 am but there was no measureable depth by the time I checked it at 7 am.
12/15/2016	7:00 AM	0.00	0.0	M	M	M
12/16/2016	7:00 AM	0.00	0.0	M	M	M
12/17/2016	7:00 AM	0.30	2.8	M	2.8	M
12/20/2016	7:00 AM	0.00	0.0	M	0.5	T
1/2/2017	7:00 AM	0.00	0.0	M	M	M
1/3/2017	7:00 AM	0.09	1.0	M	M	M
1/5/2017	8:15 AM	0.77	12.1	M	M	M
1/6/2017	7:00 AM	T	M	M	11.1	M
1/8/2017	7:00 AM	T	M	M	6.5	M
1/9/2017	7:00 AM	0.00	0.0	M	M	M
1/11/2017	7:00 AM	0.00	0.0	M	M	M
1/12/2017	7:00 AM	T	T	M	M	M
1/13/2017	7:00 AM	T	T	M	M	M
1/15/2017	7:00 AM	0.00	0.0	M	M	M
1/16/2017	7:00 AM	0.06	2.9	M	2.9	M
1/23/2017	7:00 AM	T	M	M	M	M
1/24/2017	7:00 AM	T	M	M	M	M
1/29/2017	7:00 AM	0.00	0.0	M	M	M
2/2/2017	7:00 AM	0.13	0.5	M	0.5	M	Water from both snow and sleet
2/5/2017	7:00 AM	0.00	0.0	M	M	M
2/6/2017	7:00 AM	0.00	0.0	M	M	M
2/23/2017	1:00 PM	0.26	2.4	M	2.4	M
2/24/2017	7:00 AM	0.28	3.9	0.28	6.0	M	{EDIT: Observer reported 28.00 for new SWE. This appears to be a decimal error. Changed 28.00 to 0.28 until observer can be contacted to verify. Submission Time Before EDIT: 2/25/2017 9:15 AM CoCoSTAFF DNT}
2/25/2017	7:00 AM	0.13	2.4	0.13	7.2	M
3/5/2017	7:00 AM	0.00	0.0	M	M	M
4/4/2017	7:00 AM	0.81	9.1	0.81	9.1	M
4/5/2017	7:00 AM	0.45	5.0	M	11.4	M
4/6/2017	9:00 AM	0.00	0.0	0.00	7.9	M
4/7/2017	7:00 AM	0.00	0.0	M	0.0	M	Everything melted yesterday.
4/8/2017	7:00 AM	0.00	0.0	M	0.0	M
4/21/2017	7:00 AM	0.31	0.0	M	0.0	M	Snow level about 300 ft higher
4/22/2017	7:00 AM	0.24	1.0	M	1.0	M
4/25/2017	7:00 AM	0.03	0.0	M	0.0	M
4/26/2017	7:00 AM	0.02	0.1	M	0.1	M	Most snow melted as it hit the ground.
4/27/2017	7:00 AM	0.00	0.0	M	0.0	M
4/28/2017	7:00 AM	0.04	M	M	M	M	Heavy pea-size hail for 4 minutes turned everything white.
4/29/2017	7:00 AM	0.89	5.1	M	5.1	0.89	Early snow melted so more water than one would expect.
4/30/2017	7:00 AM	0.33	2.9	0.33	6.8	M	Drifted snow made it difficult to get a good measurement of snow depth. I took several measurements spaced several inches apart to get the best reading I could.
5/1/2017	7:00 AM	0.00	0.0	M	1.0	M	Remaining snow depth highly variable between 0" and 2.0"due to drifting and uneven melting.Value below is rough average.
5/3/2017	7:00 AM	0.06	0.5	M	0.5	M
5/4/2017	7:00 AM	0.16	0.0	0.00	0.0	0.00
5/8/2017	7:00 AM	0.02	0.0	M	0.0	M
5/9/2017	7:00 AM	0.62	0.0	M	0.0	M
5/10/2017	7:00 AM	0.01	0.0	M	0.0	M
5/11/2017	7:00 AM	1.56	0.0	M	0.0	M
5/17/2017	7:00 AM	0.03	0.0	M	0.0	M
5/18/2017	7:00 AM	1.46	5.1	M	5.1	M	Rain started about 6:45pm on 5/17 and changed to snow after midnight.
5/19/2017	7:00 AM	2.10	14.5	M	18.5	M	Snow gauge read and emptied 3 times in 24 hrs to prevent distortion due to overflowing the gauge.
5/20/2017	4:00 PM	T	T	M	9.5	M
5/22/2017	7:00 AM	0.25	0.0	M	1.0	M
5/23/2017	7:00 AM	0.16	0.0	M	0.0	M
5/26/2017	7:00 AM	0.20	0.0	M	0.0	M
5/27/2017	8:30 AM	0.04	0.0	M	0.0	M
5/28/2017	7:00 AM	0.18	0.0	M	0.0	M
5/29/2017	12:00 PM	0.05	0.0	M	0.0	M
5/30/2017	7:00 AM	0.06	0.0	M	0.0	M
5/31/2017	7:00 AM	0.02	0.0	M	0.0	M
6/1/2017	7:00 AM	0.01	0.0	M	0.0	M
6/2/2017	7:00 AM	0.01	M	M	M	M
6/3/2017	7:00 AM	0.12	0.0	M	0.0	M
6/4/2017	7:00 AM	0.00	0.0	M	M	M
6/5/2017	7:00 AM	0.00	0.0	M	M	M
6/6/2017	7:00 AM	T	0.0	M	0.0	M
6/7/2017	7:00 AM	0.00	0.0	M	M	M
6/8/2017	7:00 AM	0.10	M	M	M	M
6/9/2017	7:00 AM	0.07	0.0	M	0.0	M
6/10/2017	7:00 AM	0.00	0.0	M	M	M
6/11/2017	7:00 AM	0.00	0.0	M	M	M
6/12/2017	7:00 AM	0.00	0.0	M	M	M
6/13/2017	7:00 AM	0.00	0.0	M	M	M
7/26/2017	7:00 AM	0.15	M	M	M	M
7/27/2017	7:00 AM	0.77	M	M	M	M
7/28/2017	7:00 AM	0.00	0.0	M	M	M
7/29/2017	7:00 AM	0.06	M	M	M	M
7/30/2017	7:00 AM	0.00	0.0	M	M	M
7/31/2017	7:00 AM	0.00	0.0	M	M	M
8/1/2017	7:00 AM	0.00	0.0	M	M	M
8/2/2017	7:00 AM	0.00	0.0	M	M	M
8/3/2017	7:00 AM	0.10	M	M	M	M
8/4/2017	7:00 AM	0.04	M	M	M	M
8/6/2017	8:00 AM	0.23	M	M	M	M	No hail
8/7/2017	7:00 AM	0.08	M	M	M	M
8/8/2017	7:00 AM	0.87	M	M	M	M
8/9/2017	7:00 AM	0.09	M	M	M	M
8/10/2017	7:00 AM	0.05	M	M	M	M
8/11/2017	7:00 AM	0.17	M	M	M	M
8/12/2017	7:00 AM	0.02	M	M	M	M
8/13/2017	7:00 AM	0.00	0.0	M	M	M
8/16/2017	7:00 AM	0.09	M	M	M	M
8/17/2017	7:00 AM	0.06	M	M	M	M
8/19/2017	7:00 AM	0.00	0.0	M	M	M
8/20/2017	7:00 AM	0.00	0.0	M	M	M
8/21/2017	7:00 AM	0.00	0.0	M	M	M
8/22/2017	7:00 AM	0.00	0.0	M	M	M
8/23/2017	7:00 AM	0.00	0.0	M	M	M
8/25/2017	7:00 AM	0.28	M	M	M	M
8/26/2017	7:00 AM	0.00	0.0	M	M	M
8/27/2017	7:00 AM	0.00	0.0	M	M	M
8/28/2017	7:00 AM	0.00	0.0	M	M	M
8/29/2017	7:00 AM	0.00	0.0	M	M	M
8/30/2017	7:00 AM	0.00	0.0	M	M	M
8/31/2017	7:00 AM	0.00	0.0	M	M	M
9/1/2017	7:00 AM	0.00	0.0	M	M	M
9/2/2017	7:00 AM	0.00	0.0	M	M	M
9/3/2017	7:00 AM	0.00	0.0	M	M	M
9/4/2017	7:00 AM	0.00	0.0	M	M	M
9/5/2017	7:00 AM	0.00	0.0	M	M	M
9/6/2017	7:00 AM	0.00	0.0	M	M	M
9/7/2017	7:00 AM	0.00	0.0	M	M	M
9/8/2017	7:00 AM	0.00	0.0	M	M	M
9/9/2017	7:00 AM	0.00	0.0	M	M	M
9/10/2017	7:00 AM	0.00	0.0	M	M	M
9/11/2017	7:00 AM	0.00	0.0	M	M	M
9/12/2017	7:00 AM	0.02	M	M	M	M
9/13/2017	7:00 AM	0.00	0.0	M	M	M
9/14/2017	7:00 AM	0.05	M	M	M	M
9/15/2017	7:00 AM	T	M	M	M	M
9/17/2017	7:00 AM	0.01	M	M	M	M
9/18/2017	7:00 AM	0.00	0.0	M	M	M
9/19/2017	7:00 AM	0.00	0.0	M	M	M
9/20/2017	7:00 AM	0.00	0.0	M	M	M
9/21/2017	7:00 AM	0.00	0.0	M	M	M
9/23/2017	8:00 AM	0.00	0.0	M	M	M
9/24/2017	8:00 AM	0.83	M	M	M	M
9/25/2017	7:00 AM	0.52	M	M	M	M
9/26/2017	7:30 AM	0.03	M	M	M	M
9/27/2017	7:00 AM	0.03	M	M	M	M
9/28/2017	8:00 AM	0.40	M	M	M	M
9/29/2017	7:30 AM	0.32	M	M	M	M
9/30/2017	8:00 AM	0.03	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

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
Top of Page

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