Station Overview Station Location
Station Number CO-JF-72 Latitude 39.8826
Station Name Broomfield 2.3 SSW Longitude -105.1056
County Jefferson Elevation (ft) 5436



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 1.04 0.46 31 0.46 31 0.00 0 0 4 1 0.0 0 0
Nov 16 0.84 0.29 30 0.29 30 0.00 0 0 2 2 2.7 1 3
Dec 16 0.60 0.64 31 0.64 31 0.00 0 0 3 5 10.1 3 9
Jan 17 0.41 0.93 31 0.93 31 0.00 0 0 4 6 13.0 5 15
Feb 17 0.42 0.13 28 0.13 28 0.00 0 0 1 3 1.0 1 2
March 17 1.58 0.65 31 0.65 31 0.00 0 0 4 5 0.0 0 0
April 17 1.97 1.96 30 1.96 30 0.00 0 0 10 2 9.1 4 4
May 17 2.23 4.91 31 4.91 31 0.00 0 0 15 2 2.6 1 1
June 17 1.87 0.32 30 0.32 30 0.00 0 0 5 3 0.0 0 0
July 17 1.79 0.79 31 0.79 31 0.00 0 0 8 1 0.0 0 0
Aug 17 1.83 1.79 31 1.79 31 0.00 0 0 14 2 0.0 0 0
Sept 17 1.17 1.64 30 1.64 30 0.00 0 0 10 4 0.0 0 0
Water Year Totals: 15.75" 14.51" 365 days 14.51" 365 0.00" 0 days 0 80 days 36 days 38.5" 15 days 34 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 0.00
10/2/2016 0.00
10/3/2016 0.00
10/4/2016 0.00
10/5/2016 0.00
10/6/2016 0.18
10/7/2016 0.10
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 0.01
10/14/2016 0.00
10/15/2016 0.00
10/16/2016 0.00
10/17/2016 0.00
10/18/2016 0.00
10/19/2016 T
10/20/2016 0.00
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 T
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 0.27
11/19/2016 0.00
11/20/2016 0.00
11/21/2016 0.00
11/22/2016 0.02
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 0.08
12/8/2016 T
12/9/2016 0.00
12/10/2016 0.00
12/11/2016 0.12
12/12/2016 T
12/13/2016 0.00
12/14/2016 0.00
12/15/2016 0.00
12/16/2016 0.00
12/17/2016 0.44
12/18/2016 T
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 T
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 T
1/4/2017 T
1/5/2017 0.48
1/6/2017 0.13
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 T
1/13/2017 T
1/14/2017 0.00
1/15/2017 0.00
1/16/2017 0.25
1/17/2017 0.07
1/18/2017 0.00
1/19/2017 0.00
1/20/2017 T
1/21/2017 0.00
1/22/2017 0.00
1/23/2017 0.00
1/24/2017 T
1/25/2017 0.00
1/26/2017 0.00
1/27/2017 0.00
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 0.00
2/3/2017 0.00
2/4/2017 0.00
2/5/2017 0.00
2/6/2017 0.00
2/7/2017 0.00
2/8/2017 0.00
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 T
2/21/2017 0.00
2/22/2017 0.00
2/23/2017 T
2/24/2017 0.13
2/25/2017 T
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 T
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 T
3/24/2017 0.24
3/25/2017 0.00
3/26/2017 0.00
3/27/2017 0.02
3/28/2017 0.09
3/29/2017 0.30
3/30/2017 0.00
3/31/2017 T
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.24
4/2/2017 T
4/3/2017 0.03
4/4/2017 0.33
4/5/2017 0.46
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 0.34
4/22/2017 0.02
4/23/2017 0.00
4/24/2017 0.00
4/25/2017 0.01
4/26/2017 0.02
4/27/2017 0.00
4/28/2017 T
4/29/2017 0.37
4/30/2017 0.14
5/1/2017 0.00
5/2/2017 0.00
5/3/2017 0.17
5/4/2017 0.10
5/5/2017 0.00
5/6/2017 0.00
5/7/2017 0.00
5/8/2017 0.01
5/9/2017 0.60
5/10/2017 0.01
5/11/2017 0.34
5/12/2017 0.00
5/13/2017 0.00
5/14/2017 0.00
5/15/2017 0.00
5/16/2017 0.00
5/17/2017 0.02
5/18/2017 0.86
5/19/2017 1.38
5/20/2017 T
5/21/2017 0.00
5/22/2017 0.30
5/23/2017 0.18
5/24/2017 0.00
5/25/2017 0.00
5/26/2017 0.54
5/27/2017 0.00
5/28/2017 0.31
5/29/2017 T
5/30/2017 0.02
5/31/2017 0.07
6/1/2017 0.00
6/2/2017 T
6/3/2017 0.11
6/4/2017 0.00
6/5/2017 0.00
6/6/2017 0.00
6/7/2017 0.00
6/8/2017 0.05
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 0.02
6/19/2017 0.00
6/20/2017 0.00
6/21/2017 T
6/22/2017 0.00
6/23/2017 0.12
6/24/2017 T
6/25/2017 0.00
6/26/2017 0.00
6/27/2017 0.00
6/28/2017 0.00
6/29/2017 0.00
6/30/2017 0.02
Day of YearDaily PrcpMultiday Prcp
7/1/2017 0.00
7/2/2017 0.00
7/3/2017 0.00
7/4/2017 0.00
7/5/2017 0.00
7/6/2017 0.00
7/7/2017 0.00
7/8/2017 0.00
7/9/2017 0.00
7/10/2017 0.00
7/11/2017 0.00
7/12/2017 0.00
7/13/2017 0.02
7/14/2017 0.00
7/15/2017 0.04
7/16/2017 0.07
7/17/2017 0.00
7/18/2017 0.00
7/19/2017 0.00
7/20/2017 0.00
7/21/2017 0.03
7/22/2017 0.02
7/23/2017 0.00
7/24/2017 0.00
7/25/2017 0.00
7/26/2017 0.11
7/27/2017 0.48
7/28/2017 0.00
7/29/2017 0.02
7/30/2017 T
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 0.03
8/4/2017 0.01
8/5/2017 0.01
8/6/2017 0.01
8/7/2017 0.04
8/8/2017 0.72
8/9/2017 0.12
8/10/2017 0.01
8/11/2017 0.10
8/12/2017 0.00
8/13/2017 0.13
8/14/2017 0.39
8/15/2017 T
8/16/2017 0.14
8/17/2017 0.06
8/18/2017 0.00
8/19/2017 0.00
8/20/2017 0.02
8/21/2017 0.00
8/22/2017 0.00
8/23/2017 0.00
8/24/2017 0.00
8/25/2017 T
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 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 0.03
9/15/2017 0.00
9/16/2017 T
9/17/2017 T
9/18/2017 0.01
9/19/2017 0.00
9/20/2017 0.00
9/21/2017 0.00
9/22/2017 0.00
9/23/2017 0.01
9/24/2017 0.72
9/25/2017 0.18
9/26/2017 0.01
9/27/2017 0.17
9/28/2017 0.46
9/29/2017 0.04
9/30/2017 0.01



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 6:30 AM 0.00 0.0 M 0.0 M
10/2/2016 6:30 AM 0.00 0.0 M 0.0 M
10/3/2016 5:54 AM 0.00 0.0 M 0.0 M
10/4/2016 5:35 AM 0.00 0.0 M 0.0 M
10/5/2016 6:40 AM 0.00 0.0 M 0.0 M
10/6/2016 6:43 AM 0.18 0.0 M 0.0 M Still raining moderately and 40F at 0643 obsv time.
10/7/2016 6:38 AM 0.10 0.0 M 0.0 M Exactly 0.10" rain, frost, calm, and clear skies at 0638 obsv time.
10/8/2016 7:00 AM 0.00 0.0 M 0.0 M
10/9/2016 6:30 AM 0.00 0.0 M 0.0 M
10/10/2016 6:31 AM 0.00 0.0 M 0.0 M
10/11/2016 5:52 AM 0.00 0.0 M 0.0 M
10/12/2016 6:16 AM 0.17 0.0 M 0.0 M Fog, 35F, and fine drizzle at 0616 obsv time.
10/13/2016 6:32 AM 0.01 0.0 M 0.0 M
10/14/2016 5:55 AM 0.00 0.0 M 0.0 M
10/15/2016 6:00 AM 0.00 0.0 M 0.0 M
10/16/2016 7:00 AM 0.00 0.0 M 0.0 M
10/17/2016 5:35 AM 0.00 0.0 M 0.0 M
10/18/2016 5:25 AM 0.00 0.0 M 0.0 M
10/19/2016 5:37 AM T 0.0 M 0.0 M
10/20/2016 5:56 AM 0.00 0.0 M 0.0 M
10/21/2016 5:45 AM 0.00 0.0 M 0.0 M
10/22/2016 6:00 AM 0.00 0.0 M 0.0 M
10/23/2016 6:52 AM 0.00 0.0 M 0.0 M
10/24/2016 5:56 AM 0.00 0.0 M 0.0 M
10/25/2016 6:00 AM 0.00 0.0 M 0.0 M
10/26/2016 6:00 AM 0.00 0.0 M 0.0 M
10/27/2016 6:00 AM 0.00 0.0 M 0.0 M
10/28/2016 5:48 AM 0.00 0.0 M 0.0 M Beautiful, but getting even drier.
10/29/2016 6:10 AM 0.00 0.0 M 0.0 M
10/30/2016 6:30 AM 0.00 0.0 M 0.0 M Dense fog this morning.
10/31/2016 6:20 AM 0.00 0.0 M 0.0 M
11/1/2016 6:00 AM 0.00 0.0 M 0.0 M
11/2/2016 6:00 AM T 0.0 M 0.0 M
11/3/2016 5:52 AM 0.00 0.0 M 0.0 M
11/4/2016 6:03 AM 0.00 0.0 M 0.0 M
11/5/2016 6:00 AM 0.00 0.0 M 0.0 M
11/6/2016 6:00 AM 0.00 0.0 M 0.0 M
11/7/2016 6:23 AM 0.00 0.0 M 0.0 M
11/8/2016 6:00 AM 0.00 0.0 M 0.0 M
11/9/2016 5:30 AM 0.00 0.0 M 0.0 M Sky dry and clear as a bell. Too dry and too clear for too long.
11/10/2016 5:30 AM 0.00 0.0 M 0.0 M
11/11/2016 5:30 AM 0.00 0.0 M 0.0 M
11/12/2016 7:00 AM 0.00 0.0 M 0.0 M
11/13/2016 6:30 AM 0.00 0.0 M 0.0 M
11/14/2016 5:54 AM 0.00 0.0 M 0.0 M
11/15/2016 6:00 AM 0.00 0.0 M 0.0 M
11/16/2016 5:57 AM 0.00 0.0 M 0.0 M Still unseasonally warm and dry.
11/17/2016 5:50 AM 0.00 0.0 M 0.0 M
11/18/2016 5:45 AM 0.27 2.7 0.17 3.0 0.27 Thin layer of ice on snow board made it difficult to obtain a proper core for SWE.
11/19/2016 6:00 AM 0.00 0.0 M 2.5 0.25 Exactly 2.5" total snow with exactly 0.25" SWE.
11/20/2016 6:00 AM 0.00 0.0 M 1.0 0.10 Exactly 1.0" total snow with exactly 0.1" SWE total snow.
11/21/2016 5:40 AM 0.00 0.0 M 0.0 M
11/22/2016 6:22 AM 0.02 0.0 M 0.0 M Light mist/drizzle falling at 0622 obsv time.
11/23/2016 6:05 AM T T T 0.0 0.00 Precip was from both snow and rain, but mostly from drizzle early in the day.
11/24/2016 7:00 AM 0.00 0.0 M 0.0 M
11/25/2016 5:15 AM 0.00 0.0 M 0.0 M
11/26/2016 5:20 AM 0.00 0.0 M 0.0 M
11/27/2016 5:25 AM 0.00 0.0 M 0.0 M
11/28/2016 6:00 AM 0.00 0.0 M 0.0 M
11/29/2016 6:00 AM 0.00 0.0 M 0.0 M
11/30/2016 5:25 AM 0.00 0.0 M 0.0 M
12/1/2016 6:05 AM 0.00 0.0 M 0.0 M Still dry here on Dec 1st.
12/2/2016 6:05 AM 0.00 0.0 M 0.0 M Not snowing at 0605 obsv time.
12/3/2016 5:50 AM T T T T T
12/4/2016 8:00 AM 0.00 0.0 M 0.0 M
12/5/2016 6:00 AM 0.00 0.0 M 0.0 M
12/6/2016 6:10 AM 0.00 0.0 M 0.0 M
12/7/2016 6:23 AM 0.08 2.5 0.13 2.5 0.13 15F and light snow falling with light winds at 0623 obsv time.
12/8/2016 6:40 AM T T T 2.0 0.12
12/9/2016 6:00 AM 0.00 0.0 M M M
12/10/2016 6:00 AM 0.00 0.0 M M M
12/11/2016 6:52 AM 0.12 1.2 0.12 1.0 0.12
12/12/2016 6:20 AM T T T T T A few flakes fell very briefly 0915-0925.
12/13/2016 6:33 AM 0.00 0.0 M T T Less than half the ground is covered with ~1.0" of snow.
12/14/2016 7:00 AM 0.00 0.0 M T T
12/15/2016 6:55 AM 0.00 0.0 M T T
12/16/2016 6:00 AM 0.00 0.0 M 0.0 M
12/17/2016 5:50 AM 0.44 6.4 0.55 6.5 0.58 Not snowing, overcast, and -2F at 0550 obsv time. Drifty snow ranging 5-8", but average is ~6.5".
12/18/2016 8:00 AM T T T 5.0 0.52
12/19/2016 6:00 AM 0.00 0.0 M 4.0 0.55
12/20/2016 5:30 AM 0.00 0.0 M 4.0 0.50
12/21/2016 5:45 AM 0.00 0.0 M 2.0 M
12/22/2016 5:55 AM 0.00 0.0 M 1.0 M Total snow depth range is 0-4", with ~50% coverage.
12/23/2016 6:00 AM 0.00 0.0 M T T
12/24/2016 6:00 AM 0.00 0.0 M T T
12/25/2016 6:00 AM 0.00 0.0 M T T
12/26/2016 6:00 AM T T T T T
12/27/2016 5:30 AM 0.00 0.0 M T T
12/28/2016 5:30 AM 0.00 0.0 M T T
12/29/2016 5:30 AM 0.00 0.0 M T T
12/30/2016 5:30 AM 0.00 0.0 M T T
12/31/2016 7:00 AM 0.00 0.0 M T T
1/1/2017 7:15 AM 0.00 0.0 M T T
1/2/2017 5:35 AM 0.00 0.0 M T T
1/3/2017 5:35 AM T 0.2 T T T
1/4/2017 5:30 AM T T T T T
1/5/2017 6:30 AM 0.48 7.4 0.48 7.5 0.46 Still snowing and 5 degrees F at 0630 observation time.
1/6/2017 6:25 AM 0.13 1.4 0.10 7.0 0.52 Clear skies at 0625 obsv time.
1/7/2017 6:00 AM 0.00 0.0 M 6.5 0.44
1/8/2017 5:40 AM 0.00 0.0 M 5.5 0.42
1/9/2017 6:00 AM 0.00 0.0 M 2.0 M 52F and very windy from the west at 0600 obsv time. Lots of melt occurring leading to sloppy yards and standing water in the streets.
1/10/2017 5:25 AM 0.00 0.0 M 1.0 M 50% of ground covered with snow depths up to 3", remainder is bare. High winds throughout the day and through the night. Not as gusty and clear skies at 0525 observation time.
1/11/2017 6:40 AM 0.00 0.0 M T T Only a few patches of very thin snow/ice remain in shady areas.
1/12/2017 6:12 AM T T T 0.0 M Graupel/snow fell briefly 1700-1715. None of that snow stayed on the ground for more than a few hours.
1/13/2017 6:40 AM T T T T T Light, see-through coating of snow on everything. Not snowing at 0640 obsv time, with fog at the airport one mile north of this location.
1/14/2017 5:45 AM 0.00 0.0 M 0.0 M Frosty morning.
1/15/2017 8:00 AM 0.00 0.0 M 0.0 M
1/16/2017 7:03 AM 0.25 3.2 0.25 3.0 0.23 Moderate snow falling at 0703 obsv time.
1/17/2017 6:27 AM 0.07 0.8 0.08 3.5 0.32 Snow stopped around 1300, where new snowfall measurements were taken, and the 0.8" of new snow melted off the snowboard about 1600.
1/18/2017 6:36 AM 0.00 0.0 M 3.0 0.23
1/19/2017 6:20 AM 0.00 0.0 M 3.0 0.21
1/20/2017 6:00 AM T 0.0 M 1.0 0.20 SWE of Total Snow is from 2" core. Ground is 50% bare and 50% remainder averaging 2.0".
1/21/2017 7:00 AM 0.00 0.0 M 1.0 M 50% ground covered with 2" snow, remainder is bare.
1/22/2017 7:00 AM 0.00 0.0 M 1.0 0.22 50% ground covered with 2" snow, remainder is bare. 0.22" SWE of total snow taken from 2" core.
1/23/2017 6:37 AM 0.00 0.0 M 1.0 0.25 50% of area is covered with 2" snow, remainder is bare. SWE of total snow taken from 2" core.
1/24/2017 6:35 AM T 0.0 M 0.5 0.14 A few drops of rain fell last night around 1900. Frost this morning. SWE for total snow obtained from a core 1" deep. 50% of ground is covered with 1" old snow, remainder is bare.
1/25/2017 6:55 AM 0.00 0.0 M T T Less than 50% total snow coverage, averaging 1" deep.
1/26/2017 5:53 AM 0.00 0.0 M T T Roughly 25% ground covered with 1" of snow or less, remainder is bare.
1/27/2017 6:00 AM 0.00 0.0 M T T About 25% ground covered with 1" of total snow; remainder is bare. 15F, calm, and clear at 0600 obsv time. A little frost on roofs, but that's it.
1/28/2017 5:20 AM 0.00 0.0 M T T <25% total snow coverage, averaging 1" deep; remainder is bare.
1/29/2017 5:20 AM 0.00 0.0 M T T <10% snow coverage, about 1" deep; remainder is bare.
1/30/2017 5:45 AM 0.00 0.0 M T T <10% snow coverage 1" deep; remainder is bare.
1/31/2017 6:00 AM 0.00 0.0 M T T Just a few tiny patches of icy old snow remain in the shade, maybe total of 100 sq.ft covered with 1".
2/1/2017 7:00 AM 0.00 0.0 M 0.0 M Overcast, but no precip, at 0700 obsv time.
2/2/2017 6:55 AM 0.00 0.0 M T T Freezing drizzle yesterday afternoon and into the night. Scraped about 0.2" of ice off windshield this morning; all decks, concrete, asphalt, grass, trees have layer of ice.
2/3/2017 6:00 AM 0.00 0.0 M 0.0 M
2/4/2017 6:00 AM 0.00 0.0 M 0.0 M
2/5/2017 6:00 AM 0.00 0.0 M 0.0 M
2/6/2017 7:00 AM 0.00 0.0 M 0.0 M
2/7/2017 6:20 AM 0.00 0.0 M 0.0 M
2/8/2017 6:00 AM 0.00 0.0 M 0.0 M
2/9/2017 6:35 AM 0.00 0.0 M 0.0 M Windy yesterday.
2/10/2017 6:00 AM 0.00 0.0 M 0.0 M
2/11/2017 6:00 AM 0.00 0.0 M 0.0 M
2/12/2017 6:00 AM 0.00 0.0 M 0.0 M
2/13/2017 6:00 AM 0.00 0.0 M 0.0 M
2/14/2017 6:00 AM 0.00 0.0 M 0.0 M
2/15/2017 5:30 AM 0.00 0.0 M 0.0 M
2/16/2017 5:30 AM 0.00 0.0 M 0.0 M
2/17/2017 5:30 AM 0.00 0.0 M 0.0 M
2/18/2017 5:30 AM 0.00 0.0 M 0.0 M
2/19/2017 5:30 AM 0.00 0.0 M 0.0 M
2/20/2017 7:00 AM T 0.0 M 0.0 M Rainfall was mostly as drizzle, but way too warm for snow.
2/21/2017 6:10 AM 0.00 0.0 M 0.0 M Quite windy, but clear skies and 50F, at 0610 obsv time.
2/22/2017 6:50 AM 0.00 0.0 M 0.0 M
2/23/2017 7:05 AM T T T T T A few flakes of very fine light snow falling at 0705 obsv time. Not sticking much since temp is 33F.
2/24/2017 6:50 AM 0.13 1.0 0.08 1.0 0.05 Still snowing and 18F at 0650 obsv time. Snow board had a glaze of ice as the base layer - difficult to obtain accurate SWE due to difficulty obtaining all of the ice portion.
2/25/2017 5:30 AM T T T 0.5 T
2/26/2017 5:30 AM 0.00 0.0 M T T
2/27/2017 6:00 AM 0.00 0.0 M T T
2/28/2017 6:10 AM 0.00 0.0 M T T
3/1/2017 6:47 AM T T T 0.0 M Two brief snow squalls in the afternoon. Very windy after midnight through 0647 obsv time. Snowfall melted almost immediately upon hitting the ground.
3/2/2017 6:00 AM 0.00 0.0 M 0.0 M
3/3/2017 6:00 AM 0.00 0.0 M 0.0 M
3/4/2017 5:30 AM 0.00 0.0 M 0.0 M
3/5/2017 5:30 AM 0.00 0.0 M 0.0 M
3/6/2017 5:30 AM 0.00 0.0 M 0.0 M
3/7/2017 6:00 AM 0.00 0.0 M 0.0 M
3/8/2017 6:00 AM 0.00 0.0 M 0.0 M
3/9/2017 6:55 AM 0.00 0.0 M 0.0 M
3/10/2017 7:00 AM 0.00 0.0 M 0.0 M
3/11/2017 5:25 AM T 0.0 M 0.0 M A few sprinkles of rain.
3/12/2017 6:30 AM T 0.0 M 0.0 M Trace rain early in the morning.
3/13/2017 6:00 AM 0.00 0.0 M 0.0 M
3/14/2017 6:15 AM 0.00 0.0 M 0.0 M
3/15/2017 6:35 AM 0.00 0.0 M 0.0 M Unseasonably warm, partly cloudy, and a little breezy at 0635 obsv time.
3/16/2017 5:30 AM 0.00 0.0 M 0.0 M Warm, dry, and windy.
3/17/2017 6:23 AM 0.00 0.0 M 0.0 M 50F and very dry at 0623 obsv time.
3/18/2017 6:00 AM 0.00 0.0 M 0.0 M
3/19/2017 6:00 AM 0.00 0.0 M 0.0 M
3/20/2017 6:10 AM 0.00 0.0 M 0.0 M Crispy dry. Another wildfire 12 miles to my Northwest in Boulder.
3/21/2017 6:00 AM 0.00 0.0 M 0.0 M
3/22/2017 6:00 AM 0.00 0.0 M 0.0 M
3/23/2017 6:00 AM T 0.0 M 0.0 M
3/24/2017 6:19 AM 0.24 0.0 M 0.0 M Not raining at 0619 obsv time, but overcast, windy, and 35F.
3/25/2017 5:40 AM 0.00 0.0 M 0.0 M
3/26/2017 5:50 AM 0.00 0.0 M 0.0 M
3/27/2017 6:35 AM 0.02 0.0 M 0.0 M
3/28/2017 6:18 AM 0.09 0.0 M 0.0 M Raining lightly at 0618 obsv time.
3/29/2017 6:59 AM 0.30 0.0 M 0.0 M Exactly 0.30" in the gauge. Observed 0.23" at 1910, and an additional 0.07" overnight. Not raining at 0659 obsv time. No snow.
3/30/2017 6:37 AM 0.00 0.0 M 0.0 M
3/31/2017 6:15 AM T 0.0 M 0.0 M Misting slightly at 0615 obsv time.
4/1/2017 7:00 AM 0.24 T T 0.0 0.00
4/2/2017 7:00 AM T 0.0 M 0.0 M
4/3/2017 6:48 AM 0.03 0.0 M 0.0 M Rain with westerly wind started at 0037 (midnight:37).
4/4/2017 6:07 AM 0.33 3.1 0.23 3.0 0.23 Started as rain ~2045, turning to rain/snow mix ~midnight. Snowing lightly at 0607 obsv time, but snow on ground is sloppy.
4/5/2017 6:35 AM 0.46 2.1 0.25 2.0 0.22 No rain, but during the day, most of the snow melted as it hit the ground. Most accumulation occurred in the evening/overnight. Clear and 31F at 0635 obsv time. Car doors frozen shut and windshield wipers stuck this morning. Not much snow accumulation on streets.
4/6/2017 6:14 AM 0.00 0.0 M T T Just a little patch of 1" snow in the shade, otherwise bare and muddy.
4/7/2017 6:37 AM 0.00 0.0 M 0.0 M Muddy.
4/8/2017 6:00 AM 0.00 0.0 M 0.0 M
4/9/2017 6:00 AM 0.00 0.0 M 0.0 M
4/10/2017 6:25 AM 0.00 0.0 M 0.0 M Quite windy all of yesterday and evening.
4/11/2017 6:05 AM 0.00 0.0 M 0.0 M
4/12/2017 6:00 AM 0.00 0.0 M 0.0 M
4/13/2017 6:00 AM 0.00 0.0 M 0.0 M
4/14/2017 6:00 AM 0.00 0.0 M 0.0 M
4/15/2017 6:00 AM 0.00 0.0 M 0.0 M
4/16/2017 6:00 AM 0.00 0.0 M 0.0 M
4/17/2017 6:00 AM 0.00 0.0 M 0.0 M
4/18/2017 6:00 AM 0.00 0.0 M 0.0 M
4/19/2017 6:00 AM 0.00 0.0 M 0.0 M
4/20/2017 6:00 AM 0.00 0.0 M 0.0 M
4/21/2017 5:43 AM 0.34 0.0 M 0.0 M
4/22/2017 6:23 AM 0.02 0.0 M 0.0 M A few sprinks falling at 0623 obsv time.
4/23/2017 7:00 AM 0.00 0.0 M 0.0 M
4/24/2017 6:00 AM 0.00 0.0 M 0.0 M
4/25/2017 6:28 AM 0.01 0.0 M 0.0 M Mostly clear, 30F, windy, and not raining at 0628 obsv time.
4/26/2017 6:35 AM 0.02 0.0 M 0.0 M Clear skies at 0635 obsv time.
4/27/2017 6:20 AM 0.00 0.0 M 0.0 M
4/28/2017 6:33 AM T 0.0 M 0.0 M
4/29/2017 8:14 AM 0.37 3.6 0.24 3.5 0.25 Light rain/drizzle during the day turned to snow late afternoon. Still snowing at 0814 obsv time.
4/30/2017 7:10 AM 0.14 0.3 0.01 2.5 0.15 Snowed all day and night. Not raining or snowing at 0710 obsv time. Most of the snow melted upon ground contact; 0.3" accumulation occurred overnight. Bottom layer on snowboard and on ground is ice - difficult to collect.
5/1/2017 6:35 AM 0.00 0.0 M 0.0 M No snow remains on the ground. Quick melt Sunday morning.
5/2/2017 6:00 AM 0.00 0.0 M 0.0 M
5/3/2017 5:51 AM 0.17 0.0 M 0.0 M Raining lightly at 0551 obsv time. moderate rainfall 1747-1815 with heavy lightning. More light rain 1859-1904 with no lightning. Light rain again 2335-? with heavy lightning and long rumbles of thunder. Pea-size hail 2341-2347, ending abruptly. Intermittent light rain through the night.
5/4/2017 6:29 AM 0.10 T T 0.0 M Large snowflakes that did not stick fell mid-morning. Light steady rain before and after snow. Exactly 0.10" in gauge.
5/5/2017 6:05 AM 0.00 0.0 M 0.0 M
5/6/2017 7:00 AM 0.00 0.0 M 0.0 M
5/7/2017 7:00 AM 0.00 0.0 M 0.0 M
5/8/2017 6:32 AM 0.01 0.0 M 0.0 M A "wet" 0.01". Seemed like there would be more in the gauge. Might be 0.013", but can't scientifically support that level of accuracy. Thunderstorms accompanied rain.
5/9/2017 5:50 AM 0.60 0.0 M 0.0 M Exactly 0.60" observed, and cloudy but not raining at 0550 obsv time. 1500-1815 0.53" rain, then another 0.07" of light sprinkles through the night. As far as I can tell, no hail at my location.
5/10/2017 5:37 AM 0.01 0.0 M 0.0 M Overcast but not raining at 0537 obsv time.
5/11/2017 6:19 AM 0.34 0.0 M 0.0 M Drizzled intermittently throughout the day and evening. Very light drizzle at 0619 obsv time - barely wetting everything down.
5/12/2017 6:05 AM 0.00 0.0 M 0.0 M
5/13/2017 6:00 AM 0.00 0.0 M 0.0 M
5/14/2017 5:45 AM 0.00 0.0 M 0.0 M
5/15/2017 6:00 AM 0.00 0.0 M 0.0 M
5/16/2017 5:53 AM 0.00 0.0 M 0.0 M
5/17/2017 6:08 AM 0.02 0.0 M 0.0 M
5/18/2017 6:01 AM 0.86 T T T T Rain started around 1940, continued all night, turned to snow at 0550 this morning, and still snowing with giant flakes (just starting to stick to surfaces) at 0601 obsv time. Street gutters overflowing and lots of puddling observed.
5/19/2017 6:27 AM 1.38 2.6 0.81 1.5 0.57 Mostly rain/snow mix all day. New snowfall and new snow SWE from snowboard measured at 1950 yesterday before settling. Still snowing lightly at 0627 obsv time this morning. No flooding, but lots of standing water nearby.
5/20/2017 6:30 AM T T T T T Precip was from snow only.
5/21/2017 6:00 AM 0.00 0.0 M 0.0 M
5/22/2017 6:33 AM 0.30 0.0 M 0.0 M Observed exactly 0.30" rain, with clear skies at 0633 obsv time.
5/23/2017 5:54 AM 0.18 0.0 M 0.0 M
5/24/2017 6:11 AM 0.00 0.0 M 0.0 M
5/25/2017 6:00 AM 0.00 0.0 M 0.0 M Not raining and partly cloudy at 0600 obsv time. Pretty nice morning.
5/26/2017 5:45 AM 0.54 0.0 M 0.0 M Several rain events with severe lightning throughout the day and deep into the evening (after midnight was most intense).
5/27/2017 7:00 AM 0.00 0.0 M 0.0 M
5/28/2017 5:54 AM 0.31 0.0 M 0.0 M Rain off and on all day. Not much overnight, if any.
5/29/2017 7:00 AM T 0.0 M 0.0 M I don't recall much of a chance of rain yesterday, but observed a trace of rain in gauge, and moist wooden surfaces, which I assumed was dew until seeing water in the gauge. No dew on grass.
5/30/2017 5:57 AM 0.02 0.0 M 0.0 M
5/31/2017 5:51 AM 0.07 0.0 M 0.0 M
6/1/2017 5:40 AM 0.00 0.0 M 0.0 M
6/2/2017 5:35 AM T 0.0 M 0.0 M
6/3/2017 5:53 AM 0.11 0.0 M 0.0 M
6/4/2017 5:45 AM 0.00 0.0 M 0.0 M
6/5/2017 6:00 AM 0.00 0.0 M 0.0 M
6/6/2017 5:54 AM 0.00 0.0 M 0.0 M
6/7/2017 5:57 AM 0.00 0.0 M 0.0 M
6/8/2017 5:33 AM 0.05 0.0 M 0.0 M Heavily electrical 2100-2200 accompanied by moderate rainfall 2112-2159, heaviest rain 2125-2135. Exactly 0.05" observed in the gauge.
6/9/2017 6:00 AM 0.00 0.0 M 0.0 M
6/10/2017 6:00 AM 0.00 0.0 M 0.0 M
6/11/2017 6:00 AM 0.00 0.0 M 0.0 M
6/12/2017 5:51 AM 0.00 0.0 M 0.0 M
6/13/2017 5:58 AM 0.00 0.0 M 0.0 M
6/14/2017 6:20 AM 0.00 0.0 M 0.0 M
6/15/2017 6:00 AM 0.00 0.0 M 0.0 M
6/16/2017 5:53 AM 0.00 0.0 M 0.0 M
6/17/2017 7:00 AM 0.00 0.0 M 0.0 M
6/18/2017 6:30 AM 0.02 0.0 M 0.0 M Rain intervals: 1553-1558, 1622-1625, 1646-1653, 1720-1740, 1726-1732, 1813-1823. No hail here, but 1 mile south-southeast of here had pea size hail 1726-1732.
6/19/2017 6:45 AM 0.00 0.0 M 0.0 M
6/20/2017 6:16 AM 0.00 0.0 M 0.0 M
6/21/2017 6:22 AM T 0.0 M 0.0 M Raindrops 2033-2044, then 2056-2105. Submitted thunder report last night with 9 different clap times between 2027-2121.
6/22/2017 6:33 AM 0.00 0.0 M 0.0 M
6/23/2017 8:00 AM 0.12 0.0 M 0.0 M
6/24/2017 7:15 AM T 0.0 M 0.0 M
6/25/2017 6:00 AM 0.00 0.0 M 0.0 M
6/26/2017 6:00 AM 0.00 0.0 M 0.0 M
6/27/2017 6:00 AM 0.00 0.0 M 0.0 M
6/28/2017 5:55 AM 0.00 0.0 M 0.0 M
6/29/2017 6:18 AM 0.00 0.0 M 0.0 M
6/30/2017 5:37 AM 0.02 0.0 M 0.0 M Sprinkles at 1701, 2007, 2355, and heaviest starting at 0022. Submitted thunder reports for evening and again around midnight. VERY close lightning just before midnight, setting off car alarms and sending a few fire trucks into our neighborhood.
7/1/2017 6:00 AM 0.00 0.0 M 0.0 M
7/2/2017 7:00 AM 0.00 0.0 M 0.0 M
7/3/2017 6:00 AM 0.00 0.0 M 0.0 M
7/4/2017 6:30 AM 0.00 0.0 M 0.0 M
7/5/2017 7:03 AM 0.00 0.0 M 0.0 M
7/6/2017 5:55 AM 0.00 0.0 M 0.0 M
7/7/2017 5:59 AM 0.00 0.0 M 0.0 M
7/8/2017 7:00 AM 0.00 0.0 M 0.0 M
7/9/2017 7:00 AM 0.00 0.0 M 0.0 M
7/10/2017 7:00 AM 0.00 0.0 M 0.0 M
7/11/2017 7:00 AM 0.00 0.0 M 0.0 M
7/12/2017 7:00 AM 0.00 0.0 M 0.0 M
7/13/2017 7:00 AM 0.02 0.0 M 0.0 M
7/14/2017 7:00 AM 0.00 0.0 M 0.0 M
7/15/2017 7:00 AM 0.04 0.0 M 0.0 M
7/16/2017 7:00 AM 0.07 0.0 M 0.0 M
7/17/2017 6:00 AM 0.00 0.0 M 0.0 M
7/18/2017 7:00 AM 0.00 0.0 M 0.0 M
7/19/2017 6:00 AM 0.00 0.0 M 0.0 M
7/20/2017 6:00 AM 0.00 0.0 M 0.0 M
7/21/2017 5:43 AM 0.03 0.0 M 0.0 M
7/22/2017 7:00 AM 0.02 0.0 M 0.0 M Soggy sll afternoon and late into the evening, but not a lot of water in the system.
7/23/2017 6:30 AM 0.00 0.0 M 0.0 M
7/24/2017 6:30 AM 0.00 0.0 M 0.0 M
7/25/2017 6:22 AM 0.00 0.0 M 0.0 M
7/26/2017 6:50 AM 0.11 0.0 M 0.0 M Intermittent light rain for most of the afternoon and into the evening.
7/27/2017 6:06 AM 0.48 0.0 M 0.0 M Overcast all day yesterday, with about 3 hours of steady rain in the evening. Dry and mostly clear skies at 0606 obsv time.
7/28/2017 6:21 AM 0.00 0.0 M 0.0 M
7/29/2017 5:36 AM 0.02 0.0 M 0.0 M Overcast but not raining at 0536 obsv time.
7/30/2017 6:38 AM T 0.0 M 0.0 M Overcast all day yesterday with a few morning sprinks. Partly cloudy at obsv time.
7/31/2017 6:00 AM 0.00 0.0 M 0.0 M
8/1/2017 6:00 AM 0.00 0.0 M 0.0 M
8/2/2017 6:00 AM 0.00 0.0 M 0.0 M
8/3/2017 5:47 AM 0.03 0.0 M 0.0 M Early morning system brought light rain and intense long rumbling thunderclaps. Overcast, cool, and not raining at obsv time.
8/4/2017 6:06 AM 0.01 0.0 M 0.0 M
8/5/2017 6:05 AM 0.01 0.0 M 0.0 M Lots of thunder.
8/6/2017 6:25 AM 0.01 0.0 M 0.0 M
8/7/2017 6:11 AM 0.04 0.0 M 0.0 M Observed 0.01" in the morning, then T during the day, then another 0.03" during the night. Drizzling at 0611 obsv time.
8/8/2017 7:00 AM 0.72 0.0 M 0.0 M Steady rain most of the day.
8/9/2017 6:52 AM 0.12 0.0 M 0.0 M
8/10/2017 6:25 AM 0.01 0.0 M 0.0 M
8/11/2017 6:51 AM 0.10 0.0 M 0.0 M Exactly 0.10" in gauge.
8/12/2017 6:45 AM 0.00 0.0 M 0.0 M
8/13/2017 6:40 AM 0.13 0.0 M 0.0 M Heavy duty lightning.
8/14/2017 6:50 AM 0.39 0.0 M 0.0 M First raindrops with thunder at 1432 falling from NNW, heaviest fell 1444-1449, then switched to falling from the ESE at 1448,then from WNW at 1451. At 1454, lightning heard <3 seconds after flash.
8/15/2017 5:57 AM T 0.0 M 0.0 M
8/16/2017 6:28 AM 0.14 0.0 M 0.0 M
8/17/2017 6:51 AM 0.06 0.0 M 0.0 M
8/18/2017 6:21 AM 0.00 0.0 M 0.0 M
8/19/2017 7:00 AM 0.00 0.0 M 0.0 M
8/20/2017 6:02 AM 0.02 0.0 M 0.0 M
8/21/2017 6:03 AM 0.00 0.0 M 0.0 M
8/22/2017 6:45 AM 0.00 0.0 M 0.0 M
8/23/2017 6:34 AM 0.00 0.0 M 0.0 M
8/24/2017 6:38 AM 0.00 0.0 M 0.0 M
8/25/2017 6:46 AM T 0.0 M 0.0 M
8/26/2017 7:00 AM 0.00 0.0 M 0.0 M
8/27/2017 7:00 AM 0.00 0.0 M 0.0 M
8/28/2017 5:16 AM 0.00 0.0 M 0.0 M
8/29/2017 6:00 AM 0.00 0.0 M 0.0 M
8/30/2017 6:00 AM 0.00 0.0 M 0.0 M
8/31/2017 6:00 AM 0.00 0.0 M 0.0 M
9/1/2017 6:00 AM T 0.0 M 0.0 M
9/2/2017 7:00 AM 0.00 0.0 M 0.0 M
9/3/2017 6:00 AM 0.00 0.0 M 0.0 M
9/4/2017 6:00 AM 0.00 0.0 M 0.0 M
9/5/2017 6:57 AM 0.00 0.0 M 0.0 M
9/6/2017 5:35 AM 0.00 0.0 M 0.0 M Very smoky/hazy skies for a few days now - could see the "filtered" orange sun very easy through the haze. Moon also a dull-orange color.
9/7/2017 6:25 AM 0.00 0.0 M 0.0 M
9/8/2017 6:22 AM 0.00 0.0 M 0.0 M
9/9/2017 7:00 AM T 0.0 M 0.0 M
9/10/2017 6:15 AM 0.00 0.0 M 0.0 M
9/11/2017 6:55 AM 0.00 0.0 M 0.0 M
9/12/2017 6:37 AM 0.00 0.0 M 0.0 M
9/13/2017 6:00 AM 0.00 0.0 M 0.0 M
9/14/2017 6:42 AM 0.03 0.0 M 0.0 M
9/15/2017 6:20 AM 0.00 0.0 M 0.0 M
9/16/2017 5:30 AM T 0.0 M 0.0 M
9/17/2017 7:00 AM T 0.0 M 0.0 M
9/18/2017 6:23 AM 0.01 0.0 M 0.0 M
9/19/2017 6:00 AM 0.00 0.0 M 0.0 M
9/20/2017 6:08 AM 0.00 0.0 M 0.0 M
9/21/2017 6:00 AM 0.00 0.0 M 0.0 M
9/22/2017 7:00 AM 0.00 0.0 M 0.0 M
9/23/2017 6:51 AM 0.01 0.0 M 0.0 M Rain at 1759 for several minutes, then again at 0534 this morning. Not raining but mostly cloudy at 0651 obsv time.
9/24/2017 6:07 AM 0.72 0.0 M 0.0 M 0.29" obsverved at 1735, then another 0.43" collected by 0607 obsv time. Intermittent drizzle all day and night.
9/25/2017 6:46 AM 0.18 0.0 M 0.0 M Continuing intermittent drizzle all day and night.
9/26/2017 6:41 AM 0.01 0.0 M 0.0 M Overcast but not raining at 0641 obsv time.
9/27/2017 6:26 AM 0.17 0.0 M 0.0 M Observed 0.15" of rain at 2015, then another 0.02" overnight. Not raining but overcast at 0626 obsv time.
9/28/2017 5:59 AM 0.46 0.0 M 0.0 M
9/29/2017 6:35 AM 0.04 0.0 M 0.0 M Not raining at 0635 obsv time.
9/30/2017 7:18 AM 0.01 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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
5/2/2017 11:41 PM Accompanied by lots of lightning and rolling rumbling thunder. Light rain before and after hail. Still raining lightly at 2358 report time. 3/8" 1/4" Pea Size Rice Soft|White Ice 6 1min no damage Continuous False After rain 10-20 3
6/17/2017 5:26 PM Pea size hail observed while traveling southbound on US287 between 98th and 77th. 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Hard|White Ice 6 1min no damage Continuous True After rain Same time as smaller hail