Station Overview Station Location
Station Number CO-BO-220 Latitude 40.0591
Station Name Boulder 4.7 ENE Longitude -105.1717
County Boulder Elevation (ft) 5272



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 16 1.08 0.33 31 0.33 22 0.00 9 1 4 0 0.0 0 0
Nov 16 0.83 0.29 30 0.29 30 0.00 0 0 2 1 2.7 1 2
Dec 16 0.67 0.57 29 0.57 29 0.00 0 0 5 2 7.6 4 8
Jan 17 0.47 1.03 28 0.29 26 0.74 2 1 5 3 2.5 2 9
Feb 17 0.53 0.39 28 0.39 28 0.00 0 0 3 3 3.9 2 4
March 17 1.63 0.65 31 0.65 31 0.00 0 0 6 2 0.0 0 0
April 17 1.97 2.44 29 2.44 29 0.00 0 0 10 1 8.0 3 4
May 17 2.23 6.91 31 0.91 12 6.00 19 1 8 0 0.0 0 0
June 17 1.80 0.52 29 0.52 29 0.00 0 0 5 4 0.0 0 0
July 17 1.51 0.92 29 0.83 27 0.09 2 1 7 9 0.0 0 0
Aug 17 1.49 1.38 29 1.38 29 0.00 0 0 12 6 0.0 0 0
Sept 17 1.46 1.68 29 1.68 29 0.00 0 0 9 4 0.0 0 0
Water Year Totals: 15.67" 17.11" 353 days 10.28" 321 6.83" 32 days 4 76 days 35 days 24.7" 12 days 27 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
10/1/2016 0.01
10/2/2016 0.00
10/3/2016 0.00
10/4/2016 0.00
10/5/2016 0.00
10/6/2016 0.13
10/7/2016 0.02
10/8/2016 0.00
10/9/2016 0.00
10/10/2016 0.00
10/11/2016 0.00
10/12/2016 0.17
10/13/2016 **
10/14/2016 **
10/15/2016 **
10/16/2016 **
10/17/2016 **
10/18/2016 **
10/19/2016 **
10/20/2016 **
10/21/2016 0.00
10/22/2016 0.00
10/23/2016 0.00
10/24/2016 0.00
10/25/2016 0.00
10/26/2016 0.00
10/27/2016 0.00
10/28/2016 0.00
10/29/2016 0.00
10/30/2016 0.00
10/31/2016 0.00
11/1/2016 0.00
11/2/2016 0.00
11/3/2016 0.00
11/4/2016 0.00
11/5/2016 0.00
11/6/2016 0.00
11/7/2016 0.00
11/8/2016 0.00
11/9/2016 0.00
11/10/2016 0.00
11/11/2016 0.00
11/12/2016 0.00
11/13/2016 0.00
11/14/2016 0.00
11/15/2016 0.00
11/16/2016 0.00
11/17/2016 0.00
11/18/2016 0.28
11/19/2016 0.00
11/20/2016 0.00
11/21/2016 0.00
11/22/2016 0.01
11/23/2016 T
11/24/2016 0.00
11/25/2016 0.00
11/26/2016 0.00
11/27/2016 0.00
11/28/2016 0.00
11/29/2016 0.00
11/30/2016 0.00
12/1/2016 0.00
12/2/2016 0.00
12/3/2016 T
12/4/2016 0.00
12/5/2016 0.00
12/6/2016 0.00
12/7/2016 0.24
12/8/2016 0.01
12/9/2016 0.00
12/10/2016 0.00
12/11/2016 0.06
12/12/2016 0.01
12/13/2016 0.00
12/14/2016 0.00
12/15/2016 T
12/16/2016
12/17/2016 0.25
12/18/2016 0.00
12/19/2016 0.00
12/20/2016 0.00
12/21/2016 0.00
12/22/2016 0.00
12/23/2016 0.00
12/24/2016 0.00
12/25/2016 0.00
12/26/2016
12/27/2016 0.00
12/28/2016 0.00
12/29/2016 0.00
12/30/2016 0.00
12/31/2016 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2017 0.00
1/2/2017 0.00
1/3/2017 0.03
1/4/2017 0.01
1/5/2017 **
1/6/2017 0.74
1/7/2017 0.00
1/8/2017 0.00
1/9/2017 0.00
1/10/2017 0.00
1/11/2017 0.00
1/12/2017 0.01
1/13/2017 0.01
1/14/2017 0.00
1/15/2017 T
1/16/2017 0.23
1/17/2017
1/18/2017 0.00
1/19/2017 0.00
1/20/2017 0.00
1/21/2017 0.00
1/22/2017 0.00
1/23/2017 0.00
1/24/2017 T
1/25/2017 T
1/26/2017
1/27/2017
1/28/2017 0.00
1/29/2017 0.00
1/30/2017 0.00
1/31/2017 0.00
2/1/2017 0.00
2/2/2017 0.05
2/3/2017 T
2/4/2017 0.00
2/5/2017 0.00
2/6/2017 0.00
2/7/2017 0.00
2/8/2017 T
2/9/2017 0.00
2/10/2017 0.00
2/11/2017 0.00
2/12/2017 0.00
2/13/2017 0.00
2/14/2017 0.00
2/15/2017 0.00
2/16/2017 0.00
2/17/2017 0.00
2/18/2017 0.00
2/19/2017 0.00
2/20/2017 0.00
2/21/2017 0.00
2/22/2017 0.00
2/23/2017 T
2/24/2017 0.32
2/25/2017 0.02
2/26/2017 0.00
2/27/2017 0.00
2/28/2017 0.00
3/1/2017 T
3/2/2017 0.00
3/3/2017 0.00
3/4/2017 0.00
3/5/2017 0.00
3/6/2017 0.00
3/7/2017 0.00
3/8/2017 0.00
3/9/2017 0.00
3/10/2017 0.00
3/11/2017 0.02
3/12/2017 T
3/13/2017 0.00
3/14/2017 0.00
3/15/2017 0.00
3/16/2017 0.00
3/17/2017 0.00
3/18/2017 0.00
3/19/2017 0.00
3/20/2017 0.00
3/21/2017 0.00
3/22/2017 0.00
3/23/2017 0.00
3/24/2017 0.19
3/25/2017 0.00
3/26/2017 0.00
3/27/2017 0.11
3/28/2017 0.13
3/29/2017 0.18
3/30/2017 0.00
3/31/2017 0.02
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.38
4/2/2017 T
4/3/2017 0.03
4/4/2017 0.56
4/5/2017 0.48
4/6/2017 0.00
4/7/2017 0.00
4/8/2017 0.00
4/9/2017 0.00
4/10/2017 0.00
4/11/2017 0.00
4/12/2017 0.00
4/13/2017 0.00
4/14/2017 0.00
4/15/2017 0.00
4/16/2017 0.00
4/17/2017 0.00
4/18/2017 0.00
4/19/2017 0.00
4/20/2017 0.00
4/21/2017 0.24
4/22/2017 0.11
4/23/2017 0.00
4/24/2017 0.00
4/25/2017 0.12
4/26/2017 0.05
4/27/2017 0.00
4/28/2017
4/29/2017 0.36
4/30/2017 0.11
5/1/2017 0.00
5/2/2017 0.00
5/3/2017 **
5/4/2017 **
5/5/2017 **
5/6/2017 **
5/7/2017 **
5/8/2017 **
5/9/2017 **
5/10/2017 **
5/11/2017 **
5/12/2017 **
5/13/2017 **
5/14/2017 **
5/15/2017 **
5/16/2017 **
5/17/2017 **
5/18/2017 **
5/19/2017 **
5/20/2017 **
5/21/2017 6.00
5/22/2017 0.19
5/23/2017 0.23
5/24/2017 0.00
5/25/2017 0.00
5/26/2017 0.24
5/27/2017 0.05
5/28/2017 0.11
5/29/2017 0.07
5/30/2017 0.01
5/31/2017 0.01
6/1/2017 0.00
6/2/2017 0.21
6/3/2017 0.03
6/4/2017 0.00
6/5/2017 0.00
6/6/2017 0.02
6/7/2017 0.00
6/8/2017 T
6/9/2017 0.00
6/10/2017 0.00
6/11/2017 0.00
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 0.00
6/15/2017 0.00
6/16/2017 0.00
6/17/2017 0.00
6/18/2017 0.00
6/19/2017 0.00
6/20/2017 0.00
6/21/2017 T
6/22/2017 0.00
6/23/2017 0.15
6/24/2017 0.00
6/25/2017
6/26/2017 0.00
6/27/2017 0.00
6/28/2017 T
6/29/2017 T
6/30/2017 0.11
Day of YearDaily PrcpMultiday Prcp
7/1/2017 0.00
7/2/2017 0.00
7/3/2017 T
7/4/2017 T
7/5/2017 0.00
7/6/2017 0.00
7/7/2017 0.00
7/8/2017 0.02
7/9/2017 T
7/10/2017
7/11/2017 T
7/12/2017 0.01
7/13/2017 0.04
7/14/2017 T
7/15/2017 0.00
7/16/2017 T
7/17/2017 0.00
7/18/2017 0.00
7/19/2017 T
7/20/2017 T
7/21/2017 T
7/22/2017
7/23/2017 **
7/24/2017 0.09
7/25/2017 0.00
7/26/2017 0.02
7/27/2017 0.71
7/28/2017 0.00
7/29/2017 0.01
7/30/2017 0.02
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 0.08
8/4/2017 0.08
8/5/2017 T
8/6/2017 0.20
8/7/2017 0.18
8/8/2017 0.61
8/9/2017 0.01
8/10/2017 0.03
8/11/2017 0.09
8/12/2017 T
8/13/2017 T
8/14/2017 0.01
8/15/2017 T
8/16/2017 0.04
8/17/2017 T
8/18/2017 0.01
8/19/2017 0.00
8/20/2017
8/21/2017 0.00
8/22/2017 0.00
8/23/2017 0.00
8/24/2017 0.04
8/25/2017
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 T
9/1/2017 T
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 T
9/10/2017 0.00
9/11/2017 0.00
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.02
9/15/2017 0.00
9/16/2017 0.14
9/17/2017 0.03
9/18/2017 T
9/19/2017 0.00
9/20/2017 0.00
9/21/2017 0.00
9/22/2017 0.00
9/23/2017 T
9/24/2017 1.00
9/25/2017 0.08
9/26/2017
9/27/2017 0.01
9/28/2017 0.31
9/29/2017 0.04
9/30/2017 0.05



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 7:00 AM 0.01 M M M M A trace about 8:00 and another in early afternoon added up to a scant .o1
10/2/2016 7:00 AM 0.00 0.0 M M M
10/3/2016 7:00 AM 0.00 0.0 M 0.0 M
10/4/2016 7:00 AM 0.00 0.0 M M M
10/5/2016 7:00 AM 0.00 0.0 M M M
10/6/2016 7:00 AM 0.13 0.0 0.00 0.0 0.00 Measurable rain appears to have come after 4:30 a.m.; not actually raining at observation time, but rain appears not to be over.
10/7/2016 7:00 AM 0.02 0.0 0.00 0.0 0.00 White frost on surfaces in the south-facing, open front of the house; clear ice on damp surfaces in the north-facing, mmore sheltered northern side, except on concrete and rock surfaces.Most of rain between 11:20 and 11:40 a.m.
10/8/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00 Yesterday's frost continued to form until sometime afte 8:30 a.m.
10/9/2016 7:00 AM 0.00 0.0 M M M
10/10/2016 7:00 AM 0.00 0.0 M M M
10/11/2016 7:00 AM 0.00 0.0 M M M
10/12/2016 7:00 AM 0.17 M M M M
10/22/2016 7:00 AM 0.00 0.0 M M M
10/23/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/24/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/25/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/26/2016 7:00 AM 0.00 0.0 M M M
10/27/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
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
10/30/2016 7:00 AM 0.00 0.0 M M M Fog in the valley with visibility about 1 mile
10/31/2016 7:00 AM 0.00 0.0 M M M
11/1/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/2/2016 7:00 AM 0.00 0.0 M M M
11/3/2016 7:00 AM 0.00 0.0 M M M
11/4/2016 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
11/8/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/9/2016 7:00 AM 0.00 0.0 M M M
11/10/2016 7:00 AM 0.00 0.0 M M M
11/11/2016 7:00 AM 0.00 0.0 M M M
11/12/2016 7:00 AM 0.00 0.0 M M M
11/13/2016 7:00 AM 0.00 0.0 M M M
11/14/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/15/2016 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 0.00 0.0 M M M
11/18/2016 7:00 AM 0.28 2.7 0.28 2.5 0.25 Light precipitation noted at 9:05 a.m.; snow flakes at 10:00 a.m., heavy, large flakes with at least .1 inch at 11 a.m., approx. 3 inches on snowboard about 4:45, too dark to get exact measurement
11/19/2016 7:00 AM 0.00 0.0 0.00 0.5 M Icy crust on the bottom of the snow. range 0 to 2 inches.
11/20/2016 7:00 AM 0.00 0.0 0.00 T M Snow left in shaded/sheltered areas
11/21/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/22/2016 7:00 AM 0.01 0.0 0.00 0.0 0.00 Drizzle at time of observation. No snowflakes observed. First rain was only a trace; measurable sometime since midnight
11/23/2016 7:00 AM T 0.0 0.00 0.0 0.00 Frost forming this morning
11/24/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00 Gusts over 20 mph since about 2 a.m.
11/25/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/26/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/27/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/28/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/29/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/30/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/1/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/2/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/3/2016 7:00 AM T T M 0.0 0.00 Light flakes for many hours; very few landed
12/4/2016 7:00 AM 0.00 0.0 M M M
12/5/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/6/2016 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
12/7/2016 7:00 AM 0.24 3.8 0.26 4.0 M About .5 inches of accumulation noted about 8 pm. Still snowing lightly at 7 am.
12/8/2016 7:00 AM 0.01 0.3 M 3.5 M Mostly in the morning; some additional flakes in the afternoon.
12/9/2016 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/10/2016 7:00 AM 0.00 0.0 0.00 1.5 M
12/11/2016 7:00 AM 0.06 0.4 M 0.5 M Snow had melted to a trace (patchy coverage even in lightly shaded areas) by evening.
12/12/2016 7:00 AM 0.01 T M T M Snow melting on contact
12/13/2016 7:00 AM 0.00 0.0 0.00 T T
12/14/2016 7:00 AM 0.00 0.0 M M M
12/15/2016 7:00 AM T T T T T Light flurries in the morning. Snow on the ground is in areas sheltered from wind, with some shading from sunlight
12/17/2016 7:00 AM 0.25 3.1 0.27 3.0 M Some drifting.
12/18/2016 7:00 AM 0.00 0.0 0.00 3.0 M Between -6 and -9 F through the night, with rises and falls
12/19/2016 7:00 AM 0.00 0.0 0.00 3.0 0.24
12/20/2016 7:00 AM 0.00 0.0 0.00 2.5 M
12/21/2016 7:00 AM 0.00 0.0 0.00 T M Warm and blowing yesterday. Snow coverage less than 50%, and patchy.
12/22/2016 7:00 AM 0.00 0.0 0.00 T T small patches covering maybe 10-15 percent of the area
12/23/2016 7:00 AM 0.00 0.0 0.00 T T
12/24/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/25/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/27/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/28/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00 Gusty winds out of the west all night long; temperature did not drop below 40 F.
12/29/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/30/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/31/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/1/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/2/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/3/2017 7:00 AM 0.03 M M 0.5 M
1/4/2017 7:00 AM 0.01 T M T M
1/7/2017 7:00 AM 0.00 0.0 0.00 6.0 M
1/8/2017 7:00 AM 0.00 0.0 0.00 5.0 M
1/9/2017 7:00 AM 0.00 0.0 0.00 1.0 M Winds all night, gusts measured to 58 mph.
1/10/2017 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 0.01 0.2 M T M
1/13/2017 7:00 AM 0.01 T T 0.1 T
1/14/2017 7:00 AM 0.00 0.0 M M M
1/15/2017 7:00 AM T T T 0.0 0.00 A few flurries.
1/16/2017 7:00 AM 0.23 2.3 M 2.5 M Still snowing at 7 am
1/18/2017 7:00 AM 0.00 0.0 0.00 0.5 M
1/19/2017 7:00 AM 0.00 0.0 0.00 0.5 M
1/20/2017 7:00 AM 0.00 0.0 0.00 0.5 M
1/21/2017 7:00 AM 0.00 0.0 0.00 T M Still snow in shaded, protected areas. Fields in the neighborhood are mostly dry.
1/22/2017 7:00 AM 0.00 0.0 0.00 T M
1/23/2017 7:00 AM 0.00 0.0 0.00 T T Thin snow, only in shaded areas.
1/24/2017 7:00 AM T M M T T Probably rain.
1/25/2017 7:00 AM T T T T T A skiff of corn snow. Still a little old snow in protected, shaded areas.
1/28/2017 7:00 AM 0.00 0.0 0.00 T M
1/29/2017 7:00 AM 0.00 0.0 0.00 T M Last patches of snow are slowly going away
1/30/2017 7:00 AM 0.00 0.0 0.00 T T Temperature did not go below 45 deg. last night Still a little snow left on the ground in most protected areas.
1/31/2017 7:00 AM 0.00 0.0 0.00 T M
2/1/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Finally snow free, even in shaded, protected areas.
2/2/2017 7:00 AM 0.05 T T T M Freezing mist, some snow flakes. More moisture (ice) on the outside of the cylinder than the inside.
2/3/2017 7:00 AM T T T T M Flurries observed through yesterday morning. There is approximately 1 mm of ice still on the ground and other surfaces where I could measure.
2/4/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Wind gusts to 35 mph measured, highest about 3:30 a.m.. The ice on the electronic rain gauge finally melted, showing .02 in.
2/5/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/6/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/7/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/8/2017 7:00 AM T 0.0 0.00 0.0 0.00 possibly as snow melting on contact
2/9/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Breezy, Gusts through the day yesterday mostly measured in the 10-20 mph range, mostly less during the night.
2/10/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Gust measured to about 30 mph. overnight; frequent gusts in the 20's
2/11/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Windy all day and through the night, gusts measured to about 25 mph. in our sheltered location.
2/12/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/13/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/14/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/15/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/16/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/17/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/18/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/19/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/20/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/21/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Winds increasing starting just after 2 a.m.; maximum measured gusts 41 mph about 4:25 a.m. with many gusts measured over 30 mph.
2/22/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Gusts 30-40 until noon, then gradually decreasing
2/23/2017 7:00 AM T 0.0 0.00 0.0 0.00 Ground moist at observation time
2/24/2017 7:00 AM 0.32 3.8 M 4.0 M Still snowing lightly
2/25/2017 7:00 AM 0.02 0.1 M 2.0 M On and off light snow through late afternoon
2/26/2017 7:00 AM 0.00 0.0 0.00 1.0 M Snow patchy (50%) in sunny areas, still about 3 inches in shaded areas.
2/27/2017 7:00 AM 0.00 0.0 0.00 0.5 M is gone from all areas that get sun all day, patchy where part day sunlight, still about 2 inches in shaded areas.
2/28/2017 7:00 AM 0.00 0.0 0.00 T M
3/1/2017 7:00 AM T T T T M Corn snow not covering the board solidly
3/2/2017 7:00 AM 0.00 0.0 0.00 T T Snow only on the ground in the most protected areas
3/3/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/4/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/5/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/6/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/7/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/8/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/9/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/10/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/11/2017 7:00 AM 0.02 0.0 0.00 0.0 0.00 Still raining very lightly at observation time.
3/12/2017 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/13/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/14/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/15/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/16/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/17/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/18/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/19/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/20/2017 7:00 AM 0.00 0.0 0.00 0.0 M
3/21/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/22/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/23/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/24/2017 7:00 AM 0.19 0.0 0.00 0.0 0.00
3/25/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/26/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/27/2017 7:00 AM 0.11 0.0 0.00 0.0 0.00
3/28/2017 7:00 AM 0.13 0.0 0.00 0.0 0.00 First .01 measured at 10:10 PM in Vanguard VUE
3/29/2017 7:00 AM 0.18 0.0 0.00 0.0 0.00
3/30/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/31/2017 7:00 AM 0.02 0.0 0.00 0.0 0.00
4/1/2017 7:00 AM 0.38 0.0 0.00 0.0 0.00 Still dark and wet at observation time, but no measurable rain since about 1 AM. Light rain almost all day yesterday.
4/2/2017 7:00 AM T 0.0 0.00 0.0 0.00
4/3/2017 7:00 AM 0.03 0.0 0.00 0.0 0.00 rained in the night
4/4/2017 7:00 AM 0.56 3.4 0.37 3.5 M
4/5/2017 7:00 AM 0.48 2.5 M 3.5 M All new moisture came in the form of snow. Significant melting through the day.
4/6/2017 7:00 AM 0.00 0.0 0.00 T M Most areas are clear of snow.
4/7/2017 7:00 AM 0.00 0.0 0.00 T M
4/8/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/9/2017 7:00 AM 0.00 0.0 M M M
4/10/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 Windy all day; measured around 10 mph out of the NW with gusts into the 30's.
4/11/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/12/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/13/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/14/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/15/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/16/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/17/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/18/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/19/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/20/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00 And windy again.
4/21/2017 7:00 AM 0.24 0.0 0.00 0.0 0.00
4/22/2017 7:00 AM 0.11 0.0 0.00 0.0 0.00
4/23/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/24/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/25/2017 7:00 AM 0.12 0.0 0.00 0.0 0.00 On and off sprinkles starting about 1 PM finally made .01 about 7:30 PM; almost all the rain fell between midnight and 12:30 AM
4/26/2017 7:00 AM 0.05 0.0 0.00 0.0 0.00 Assorted trace amounts through the day, measurable rain 6:30 PM
4/27/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/29/2017 7:00 AM 0.36 2.1 0.32 3.0 M Shower of round, soft snow pellets at 1:45 PM, followed by sunshine; a second shower about 4:00, started more continuously 7 PM. Snowing lightly at observation time.
4/30/2017 7:00 AM 0.11 M M 15.0 M Snow amounts range from none to about 2.5 inches.
5/1/2017 7:00 AM 0.00 0.0 0.00 T T
5/2/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/22/2017 7:00 AM 0.19 M M M M
5/23/2017 7:00 AM 0.23 0.0 0.00 0.0 0.00
5/24/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/25/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/26/2017 7:00 AM 0.24 0.0 0.00 0.0 0.00
5/27/2017 7:00 AM 0.05 0.0 0.00 0.0 0.00 Short period of soft hail, which broke up on hitting the ground. Report submitted. Repeated short periods of showers
5/28/2017 7:00 AM 0.11 0.0 0.00 0.0 0.00
5/29/2017 7:00 AM 0.07 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
5/30/2017 7:00 AM 0.01 M M M M Multiple showers finally added up to the .01
5/31/2017 7:00 AM 0.01 0.0 0.00 0.0 0.00 a scant .01
6/1/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/2/2017 7:00 AM 0.21 0.0 0.00 0.0 0.00 Some hail reported in hail report
6/3/2017 7:00 AM 0.03 0.0 0.00 0.0 0.00
6/4/2017 7:00 AM 0.00 0.0 M M M
6/5/2017 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.9 (build 20011)
6/6/2017 7:00 AM 0.02 M M M M Two short showers, one at 12:30 pm, one at 4:00.
6/7/2017 7:00 AM 0.00 0.0 0.00 M M
6/8/2017 7:00 AM T M M M M Almost a drop in the gauge, after various dark clouds through the afternoon and evening. Spectacular lightning to the south and southwest.
6/9/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/10/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/11/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/12/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/13/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/14/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/15/2017 7:00 AM 0.00 0.0 M M M
6/16/2017 7:00 AM 0.00 0.0 M M M
6/17/2017 7:00 AM 0.00 0.0 M M M
6/18/2017 7:00 AM 0.00 0.0 M M M
6/19/2017 7:00 AM 0.00 0.0 M M M
6/20/2017 7:00 AM 0.00 0.0 M M M
6/21/2017 7:00 AM T M M M M A few drops made it to the ground, most evaporated up high. Thunder/lightning about 10:30 PM
6/22/2017 7:00 AM 0.00 0.0 M M M
6/23/2017 7:00 AM 0.15 M M M M A few stray drops in the afternoon/early evening as showers passed north and south, in addition to the early morning rain.
6/24/2017 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.9 (build 20011)
6/26/2017 7:00 AM 0.00 0.0 M M M
6/27/2017 7:00 AM 0.00 0.0 M M M
6/28/2017 7:00 AM T M M M M Just enough precip. to interrupt what we were doing outside. Windy enough to blow down a hanging branch, measured at under 20 mph on partially sheltered anemometer. Sunlight colored from smoke in the atmosphere.
6/29/2017 7:00 AM T M M M M
6/30/2017 7:00 AM 0.11 M M M M Various short showers starting late afternoon; first measurable rain between 8 and 8:05 PM; longest shower in the night between 12:25 and 12:45 AM
7/1/2017 7:00 AM 0.00 0.0 M M M
7/2/2017 7:00 AM 0.00 0.0 M M M
7/3/2017 7:00 AM T M M M M
7/4/2017 7:00 AM T M M M M A few drops intermittently through the afternoon. Almost measurable large drops about 1 pm.
7/5/2017 7:00 AM 0.00 0.0 M M M
7/6/2017 7:00 AM 0.00 0.0 M M M
7/7/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/8/2017 7:00 AM 0.02 M M M M a couple short showers, one with the measurable precipitation.
7/9/2017 7:00 AM T M M M M Accompanied by significant cooling
7/11/2017 7:00 AM T M M M M
7/12/2017 7:00 AM 0.01 M M M M Heavy trace with strong wind blowing rain in the north facing windows about 8:30 pm, another trace about 5:45 this morning.
7/13/2017 7:00 AM 0.04 M M M M Early evening protracted very light shower
7/14/2017 7:00 AM T M M M M
7/15/2017 7:00 AM 0.00 0.0 M M M
7/16/2017 7:00 AM T M M M M very fine trace for a few minutes, just barely showing wet on the ground.
7/17/2017 7:00 AM 0.00 0.0 M M M
7/18/2017 7:00 AM 0.00 0.0 M M M
7/19/2017 7:00 AM T M M M M
7/20/2017 7:00 AM T M M M M Light trace
7/21/2017 7:00 AM T M M M M At least two separate thunderclouds gave us a few sprinkles each, the one about 3 pm producing the most cooling.
7/25/2017 7:00 AM 0.00 0.0 M M M
7/26/2017 7:00 AM 0.02 M M M M
7/27/2017 7:00 AM 0.71 0.0 M M M The sun came out and it sprinkled lightly , just after noon, 12:15 pm; 4:47 shower with .02 inches; rain started in earnest 7:32 pm with three short periods of heavy rain, including about 10 minutes in excess of 3 inches per hour (8:10-8:20 pm), then light showers in the night
7/28/2017 7:00 AM 0.00 0.0 M M M
7/29/2017 7:00 AM 0.01 M M M M
7/30/2017 7:00 AM 0.02 M M M M
7/31/2017 7:00 AM 0.00 0.0 M M M
8/1/2017 7:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.9 (build 20011)
8/2/2017 7:00 AM 0.00 0.0 M M M
8/3/2017 7:00 AM 0.08 M M M M A trace at 3:30 PM; measurable rain during the night, starting about 2 AM, ending about 6:30 AM.
8/4/2017 7:00 AM 0.08 M M M M Measurable showers about 3:30 and 5:30 in the afternoon/evening; noisy thunderstorm about 4-4:30 AM, each storm only .02 to .03 inches.
8/5/2017 7:00 AM T M M M M A few drops through the late afternoon/evening
8/6/2017 7:00 AM 0.20 M M M M Assorted earlier trace amounts, additional small amount in the night
8/7/2017 7:00 AM 0.18 M M M M Still drizzling at observation time. Steady, light rain since about 3:45 this morning. A trace yesterday morning about 9:00 AM before the clouds began to break.
8/8/2017 7:00 AM 0.61 M M M M Steady, light rain all day long, not more than .02 in. in any 5 minute period until almost 7 PM; additional traces adding up to .01 during the night.
8/9/2017 7:00 AM 0.01 M M M M Assorted small showers
8/10/2017 7:00 AM 0.03 M M M M
8/11/2017 7:00 AM 0.09 M M M M Most intense cell (.03") led into by three very loud thunder claps. A total of 5 measurable showers.
8/12/2017 7:00 AM T M M M M Sprinkles in the sunshing
8/13/2017 7:00 AM T M M M M
8/14/2017 7:00 AM 0.01 M M M M Multiple traces.
8/15/2017 7:00 AM T M M M M assorted very light sprinkles through the afternoon, not enough to leave a drop in the gauge.
8/16/2017 7:00 AM 0.04 M M M M More than 20 minutes of solid rolling thunder from about 6:50-7:10 PM. Some traces at times during the afternoon-evening.
8/17/2017 7:00 AM T M M M M About 6 drops in the gauge.
8/18/2017 7:00 AM 0.01 M M M M
8/19/2017 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
8/24/2017 7:00 AM 0.04 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 T M M M M
9/1/2017 7:00 AM T 0.0 0.00 0.0 0.00 3 drops in the guage
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 Such thick haze this morning that visibility was limited to about 2 miles about 6:30 AM; slightly better but still can't see the mountains at 7 AM
9/5/2017 7:00 AM 0.00 0.0 M M M Very poor visibility, occasionally smelling of smoke, visibility less than 6 miles all day. Better this morning.
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 T M M M M Enough sprinkles to moisten the sidewalk, not to collect in gauge. The sunlight is less orange today, still some haze.
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 0.00 0.0 M M M Shower noted about 1 mile west of here shortly before 9:30 AM.
9/13/2017 7:00 AM 0.00 0.0 M M M
9/14/2017 7:00 AM 0.02 M M M M Several small thundershowers to reach this total
9/15/2017 7:00 AM 0.00 0.0 M M M
9/16/2017 7:00 AM 0.14 0.0 0.00 M M Thunder/lightening started about 9:40 PM and kept going into rainstorm. Large drops, but no hail noted. Misty moisty this morning with light drizzle.
9/17/2017 7:00 AM 0.03 M M M M Drizzling at the start of the day yesterday, cloudy through the day, cool and sunny this morning, low 46 degerees
9/18/2017 7:00 AM T M 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
9/22/2017 7:00 AM 0.00 0.0 M M M
9/23/2017 7:00 AM T M M M M
9/24/2017 7:00 AM 1.00 M M M M Steady, sometimes hard rain between 4 and 7 PM.
9/25/2017 7:00 AM 0.08 0.0 0.00 0.0 0.00 Light/drizzle rain on and off all day
9/27/2017 7:00 AM 0.01 0.0 0.00 0.0 M
9/28/2017 7:00 AM 0.31 0.0 0.00 0.0 0.00 Traces all morning totaling .01 by approx. 11 AM; on and off traces through the afternoon/evening, steady light rain from about 11 PM until just before 7 AM
9/29/2017 7:00 AM 0.04 0.0 0.00 0.0 0.00
9/30/2017 7:00 AM 0.05 0.0 0.00 0.0 0.00 Foggy at observation time; visibility less than 150 yards.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/13/2016 10/21/2016 7:00 AM 9 0.00 0.0 0.00 No precipitation in the cylinder, although since we had removed the funnel and small cylinder, any trace or small amounts may have evaporated.
1/5/2017 1/06/2017 7:00 AM 2 0.74 7.5 M Snowfall was at least 15 inches, as that was the amount of snow in and on the cylinder. Total precip was likewise probably more than the melted total.
5/3/2017 5/21/2017 7:00 AM 19 6.00 T M Measure is approximate. Vantage VUE recorded precipitation on May 3, 8, 9, 11, and 17th of under .2 inches each, May 17th of .35, then pretty steady moisture starting May 17 at 19:40, with an initial heavy rain with a rate over 1 inch per hour for about 15 minutes. Neighbors report about 6 inches of snow accumulation. Remaining snow is patchy, with as much as 2 inches in most protected areas, but estimated at less than .25 overall.
7/23/2017 7/24/2017 7:00 AM 2 0.09 0.0 0.00 Electronic weather station recorded 6 separate shower of .01 to .02 inches between 3:30 pm and midnight of the 21st.



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
5/26/2017 1:02 PM 1/4" Pea Size NA NA Soft 4 1min no damage Intermittent True After rain vertical
6/1/2017 3:00 PM 3/8" 1/4" Pea Size Rice Mixed|White Ice 3 1min no damage Continuous True After rain After smaller hail 10-20