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 10 1.04 0.66 31 0.66 31 0.00 0 0 7 4 0.0 0 0
Nov 10 0.84 0.44 30 0.44 30 0.00 0 0 6 1 1.0 4 3
Dec 10 0.60 0.20 31 0.20 31 0.00 0 0 1 5 3.2 2 2
Jan 11 0.41 0.59 31 0.59 31 0.00 0 0 3 3 7.1 3 15
Feb 11 0.42 0.77 17 0.77 17 0.00 0 0 7 5 12.4 7 11
March 11 1.58 0.20 31 0.20 31 0.00 0 0 4 5 0.7 1 1
April 11 1.97 1.68 30 1.68 30 0.00 0 0 11 4 1.7 4 3
May 11 2.23 5.81 42 4.46 31 1.35 11 1 12 2 0.0 0 0
June 11 1.87 1.18 30 1.18 30 0.00 0 0 5 4 0.0 0 0
July 11 1.79 5.29 31 5.29 31 0.00 0 0 19 0 0.0 0 0
Aug 11 1.83 0.32 31 0.32 31 0.00 0 0 5 6 0.0 0 0
Sept 11 1.17 1.15 32 1.15 30 0.00 2 1 7 3 0.0 0 0
Water Year Totals: 15.75" 18.29" 367 days 16.94" 354 1.35" 13 days 2 87 days 42 days 26.1" 21 days 35 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
10/1/2010 0.00
10/2/2010 0.00
10/3/2010 0.00
10/4/2010 0.00
10/5/2010 0.01
10/6/2010 0.00
10/7/2010 0.12
10/8/2010 T
10/9/2010 T
10/10/2010 T
10/11/2010 0.12
10/12/2010 0.03
10/13/2010 0.34
10/14/2010 0.00
10/15/2010 0.00
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.02
10/20/2010 0.00
10/21/2010 0.00
10/22/2010 T
10/23/2010 0.02
10/24/2010 0.00
10/25/2010 0.00
10/26/2010 0.00
10/27/2010 0.00
10/28/2010 0.00
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.03
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.00
11/5/2010 0.00
11/6/2010 0.00
11/7/2010 0.00
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.25
11/11/2010 0.03
11/12/2010 0.06
11/13/2010 0.00
11/14/2010 0.00
11/15/2010 0.00
11/16/2010 0.00
11/17/2010 0.06
11/18/2010 0.00
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 0.00
11/22/2010 0.01
11/23/2010 0.00
11/24/2010 0.00
11/25/2010 0.00
11/26/2010 0.00
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 T
11/30/2010 0.00
12/1/2010 0.00
12/2/2010 0.00
12/3/2010 0.00
12/4/2010 0.00
12/5/2010 0.00
12/6/2010 0.00
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 T
12/12/2010 0.00
12/13/2010 0.00
12/14/2010 0.00
12/15/2010 0.00
12/16/2010 T
12/17/2010 T
12/18/2010 T
12/19/2010 0.00
12/20/2010 0.00
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 T
12/25/2010 0.00
12/26/2010 0.00
12/27/2010 0.00
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 0.00
12/31/2010 0.20
Day of YearDaily PrcpMultiday Prcp
1/1/2011 T
1/2/2011 0.00
1/3/2011 0.00
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 0.00
1/8/2011 0.00
1/9/2011 0.10
1/10/2011 0.36
1/11/2011 0.00
1/12/2011 0.00
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 0.00
1/18/2011 T
1/19/2011 0.00
1/20/2011 0.13
1/21/2011 0.00
1/22/2011 0.00
1/23/2011 0.00
1/24/2011 0.00
1/25/2011 0.00
1/26/2011 0.00
1/27/2011 0.00
1/28/2011 0.00
1/29/2011 0.00
1/30/2011 0.00
1/31/2011 T
2/1/2011 0.08
2/2/2011 0.01
2/3/2011 0.00
2/4/2011 0.02
2/5/2011 T
2/6/2011 0.53
2/7/2011 T
2/8/2011 0.08
2/9/2011 0.04
2/10/2011 0.00
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011 0.01
2/21/2011 0.00
2/22/2011
2/23/2011 0.00
2/24/2011
2/25/2011 T
2/26/2011 T
2/27/2011 0.00
2/28/2011 T
3/1/2011 0.00
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 0.00
3/5/2011 0.00
3/6/2011 0.00
3/7/2011 T
3/8/2011 T
3/9/2011 T
3/10/2011 0.00
3/11/2011 0.00
3/12/2011 0.00
3/13/2011 0.07
3/14/2011 0.00
3/15/2011 0.00
3/16/2011 0.00
3/17/2011 0.00
3/18/2011 0.03
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 0.00
3/22/2011 T
3/23/2011 0.00
3/24/2011 0.00
3/25/2011 T
3/26/2011 0.00
3/27/2011 0.00
3/28/2011 0.02
3/29/2011 0.08
3/30/2011 0.00
3/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.00
4/2/2011 0.00
4/3/2011 0.00
4/4/2011 0.20
4/5/2011 0.00
4/6/2011 T
4/7/2011 0.01
4/8/2011 0.00
4/9/2011 0.00
4/10/2011 0.21
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.00
4/14/2011 0.65
4/15/2011 0.03
4/16/2011 0.00
4/17/2011 0.00
4/18/2011 0.00
4/19/2011 0.23
4/20/2011 0.03
4/21/2011 0.02
4/22/2011 0.05
4/23/2011 0.00
4/24/2011 T
4/25/2011 0.24
4/26/2011 T
4/27/2011 0.01
4/28/2011 0.00
4/29/2011 0.00
4/30/2011 T
5/1/2011 T
5/2/2011 T
5/3/2011 0.00
5/4/2011 0.00
5/5/2011 0.00
5/6/2011 0.00
5/7/2011 0.00
5/8/2011 0.00
5/9/2011 0.00
5/10/2011 0.00
5/11/2011 0.46 **
5/12/2011 1.25 **
5/13/2011 0.24 **
5/14/2011 0.00 **
5/15/2011 0.21 **
5/16/2011 0.01 **
5/17/2011 0.00 **
5/18/2011 0.02 **
5/19/2011 1.41 **
5/20/2011 0.48 **
5/21/2011 0.02 1.35
5/22/2011 0.00
5/23/2011 0.00
5/24/2011 0.01
5/25/2011 0.33
5/26/2011 0.00
5/27/2011 0.00
5/28/2011 0.00
5/29/2011 0.02
5/30/2011 0.00
5/31/2011 0.00
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.03
6/10/2011 0.01
6/11/2011 0.00
6/12/2011 T
6/13/2011 0.00
6/14/2011 0.00
6/15/2011 0.00
6/16/2011 0.00
6/17/2011 0.03
6/18/2011 0.00
6/19/2011 T
6/20/2011 1.08
6/21/2011 0.03
6/22/2011 0.00
6/23/2011 0.00
6/24/2011 T
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.00
6/28/2011 0.00
6/29/2011 0.00
6/30/2011 T
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.15
7/2/2011 0.01
7/3/2011 0.01
7/4/2011 0.00
7/5/2011 0.00
7/6/2011 0.04
7/7/2011 0.19
7/8/2011 0.64
7/9/2011 1.60
7/10/2011 0.33
7/11/2011 0.41
7/12/2011 0.17
7/13/2011 0.50
7/14/2011 0.16
7/15/2011 0.01
7/16/2011 0.01
7/17/2011 0.03
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.34
7/21/2011 0.01
7/22/2011 0.00
7/23/2011 0.00
7/24/2011 0.00
7/25/2011 0.00
7/26/2011 0.00
7/27/2011 0.55
7/28/2011 0.13
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00
8/2/2011 0.01
8/3/2011 0.02
8/4/2011 T
8/5/2011 T
8/6/2011 T
8/7/2011 0.00
8/8/2011 0.00
8/9/2011 0.00
8/10/2011 0.00
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 0.00
8/14/2011 0.00
8/15/2011 T
8/16/2011 0.00
8/17/2011 0.17
8/18/2011 0.00
8/19/2011 0.00
8/20/2011 0.10
8/21/2011 0.00
8/22/2011 T
8/23/2011 0.00
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 T
8/27/2011 0.00
8/28/2011 0.00
8/29/2011 0.02
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 T
9/3/2011 T
9/4/2011 0.00
9/5/2011 0.00
9/6/2011 0.00
9/7/2011 0.03 **
9/8/2011 0.20 M
9/9/2011 0.00
9/10/2011 0.00
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.02
9/14/2011 0.00
9/15/2011 0.84
9/16/2011 0.01
9/17/2011 0.00
9/18/2011 0.01
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 T
9/22/2011 0.04
9/23/2011 0.00
9/24/2011 0.00
9/25/2011 0.00
9/26/2011 0.00
9/27/2011 0.00
9/28/2011 0.00
9/29/2011 0.00
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 6:30 AM 0.00 0.0 M 0.0 M
10/2/2010 7:00 AM 0.00 0.0 M 0.0 M
10/3/2010 7:00 AM 0.00 0.0 M 0.0 M
10/4/2010 7:00 AM 0.00 0.0 M 0.0 M
10/5/2010 5:10 AM 0.01 0.0 M 0.0 M
10/6/2010 6:00 AM 0.00 0.0 M 0.0 M
10/7/2010 6:15 AM 0.12 0.0 M 0.0 M Very intense electrically.
10/8/2010 6:20 AM T 0.0 M 0.0 M Light sprinkles were falling at 0620 obsv time. Not sure of start or end time.
10/9/2010 7:00 AM T 0.0 M 0.0 M
10/10/2010 7:30 AM T 0.0 M 0.0 M
10/11/2010 6:18 AM 0.12 0.0 M 0.0 M Intermittent light rain throughout the day.
10/12/2010 6:15 AM 0.03 0.0 M 0.0 M Raining steadily at 0615 obsv time.
10/13/2010 7:00 AM 0.34 0.0 M 0.0 M
10/14/2010 6:15 AM 0.00 0.0 M 0.0 M
10/15/2010 6:20 AM 0.00 0.0 M 0.0 M
10/16/2010 6:00 AM 0.00 0.0 M 0.0 M
10/17/2010 7:00 AM 0.00 0.0 M 0.0 M
10/18/2010 6:15 AM 0.00 0.0 M 0.0 M
10/19/2010 6:00 AM 0.02 0.0 M 0.0 M
10/20/2010 6:45 AM 0.00 0.0 M 0.0 M
10/21/2010 6:30 AM 0.00 0.0 M 0.0 M
10/22/2010 7:00 AM T 0.0 M 0.0 M
10/23/2010 6:45 AM 0.02 0.0 M 0.0 M Heavy fog at 0645 obsv time. Classic fall weather with the yellows, blues, grays, reds, purples, and greens (and whites at the higher elevations) in full display. I feel sorry for others who don't get to experience Colorado.
10/24/2010 6:45 AM 0.00 0.0 M 0.0 M
10/25/2010 6:30 AM 0.00 0.0 M 0.0 M
10/26/2010 6:15 AM 0.00 0.0 M 0.0 M
10/27/2010 6:15 AM 0.00 0.0 M M 0.00
10/28/2010 6:30 AM 0.00 0.0 M 0.0 M
10/29/2010 6:25 AM 0.00 0.0 M 0.0 M
10/30/2010 7:00 AM 0.00 0.0 M 0.0 M
10/31/2010 7:00 AM 0.00 0.0 M 0.0 M
11/1/2010 6:35 AM 0.03 0.0 M 0.0 M Quick shower 0500-0515 this morning.
11/2/2010 6:15 AM 0.00 0.0 M 0.0 M
11/3/2010 6:35 AM 0.00 0.0 M 0.0 M
11/4/2010 6:40 AM 0.00 0.0 M 0.0 M
11/5/2010 6:30 AM 0.00 0.0 M 0.0 M
11/6/2010 6:30 AM 0.00 0.0 M 0.0 M
11/7/2010 6:30 AM 0.00 0.0 M 0.0 M
11/8/2010 6:30 AM 0.00 0.0 M 0.0 M
11/9/2010 6:00 AM 0.00 0.0 M 0.0 M
11/10/2010 5:50 AM 0.25 0.3 0.06 T T Mostly rain fell, but brief bout of rain/snow mix fell around 1400. The snow only accumulated on grass and cold hard surfaces. Foggy and 31F at 0550 obsv time.
11/11/2010 5:25 AM 0.03 0.2 0.02 0.2 0.01 Snowing and 31F at 0525 obsv time. Accumulation mostly on grass and cars; just sloppy on the roads.
11/12/2010 6:00 AM 0.06 0.3 0.05 0.5 0.05
11/13/2010 7:00 AM 0.00 0.0 M T T
11/14/2010 7:00 AM 0.00 0.0 M 0.0 M
11/15/2010 6:15 AM 0.00 0.0 M 0.0 M
11/16/2010 6:00 AM 0.00 0.0 M 0.0 M
11/17/2010 5:45 AM 0.06 T T 0.0 M
11/18/2010 6:00 AM 0.00 0.0 M 0.0 M
11/19/2010 6:00 AM 0.00 0.0 M 0.0 M
11/20/2010 7:30 AM 0.00 0.0 M 0.0 M Dense fog this morning.
11/21/2010 7:00 AM 0.00 0.0 M 0.0 M
11/22/2010 6:10 AM 0.01 0.2 0.01 0.2 T Graupel fell with sunshine between 1245-1330. Snow started falling at 2000. Accumulation on grass, decks, and cars, not roads.
11/23/2010 6:00 AM 0.00 0.0 M 0.0 M
11/24/2010 6:00 AM 0.00 0.0 M 0.0 M
11/25/2010 7:00 AM 0.00 0.0 M 0.0 M
11/26/2010 6:00 AM 0.00 0.0 M 0.0 M
11/27/2010 6:00 AM 0.00 0.0 M 0.0 M
11/28/2010 6:00 AM 0.00 0.0 M 0.0 M
11/29/2010 5:30 AM T T T T T
11/30/2010 6:00 AM 0.00 0.0 M 0.0 M
12/1/2010 7:00 AM 0.00 0.0 M 0.0 M
12/2/2010 7:00 AM 0.00 0.0 M 0.0 M
12/3/2010 7:00 AM 0.00 0.0 M 0.0 M
12/4/2010 7:00 AM 0.00 0.0 M 0.0 M
12/5/2010 6:30 AM 0.00 0.0 M 0.0 M
12/6/2010 7:00 AM 0.00 0.0 M 0.0 M
12/7/2010 7:00 AM 0.00 0.0 M 0.0 M
12/8/2010 7:00 AM 0.00 0.0 M 0.0 M
12/9/2010 6:00 AM 0.00 0.0 M 0.0 M
12/10/2010 7:00 AM 0.00 0.0 M 0.0 M
12/11/2010 7:00 AM T 0.0 M 0.0 M A few sprinkles of rain in the afternoon.
12/12/2010 7:00 AM 0.00 0.0 M 0.0 M
12/13/2010 6:30 AM 0.00 0.0 M 0.0 M
12/14/2010 7:00 AM 0.00 0.0 M 0.0 M
12/15/2010 7:00 AM 0.00 0.0 M 0.0 M
12/16/2010 6:00 AM T T T 0.0 M
12/17/2010 5:35 AM T 0.1 T 0.1 T Lightly snowing at 0535 obsv time. Large, very light snowflakes.
12/18/2010 7:00 AM T T T T T
12/19/2010 7:00 AM 0.00 0.0 M T T
12/20/2010 6:30 AM 0.00 0.0 M 0.0 M
12/21/2010 6:00 AM 0.00 0.0 M 0.0 M
12/22/2010 6:30 AM 0.00 0.0 M 0.0 M
12/23/2010 6:05 AM 0.00 0.0 M 0.0 M Foggy this morning.
12/24/2010 6:00 AM T 0.0 M 0.0 M Rain.
12/25/2010 7:00 AM 0.00 0.0 M 0.0 M
12/26/2010 7:00 AM 0.00 0.0 M 0.0 M
12/27/2010 7:00 AM 0.00 0.0 M 0.0 M
12/28/2010 7:00 AM 0.00 0.0 M 0.0 M
12/29/2010 7:00 AM 0.00 0.0 M 0.0 M
12/30/2010 7:00 AM 0.00 0.0 M 0.0 M
12/31/2010 6:20 AM 0.20 3.1 0.21 3.0 0.20 Still snowing at 0620 obsv time.
1/1/2011 7:00 AM T T T 2.5 0.24
1/2/2011 6:00 AM 0.00 0.0 M 2.0 0.18
1/3/2011 7:00 AM 0.00 0.0 M 1.5 M
1/4/2011 7:00 AM 0.00 0.0 M 0.0 M
1/5/2011 5:30 AM 0.00 0.0 M 1.5 M
1/6/2011 5:45 AM 0.00 0.0 M 1.0 M
1/7/2011 6:00 AM 0.00 0.0 M T T
1/8/2011 7:00 AM 0.00 0.0 M T T
1/9/2011 7:50 AM 0.10 0.8 0.10 1.0 0.10 Still snowing at 0750 obsv time. Exactly 0.10" of water.
1/10/2011 6:00 AM 0.36 4.6 0.37 5.0 0.35 5F and not snowing at 0600 obsv time.
1/11/2011 5:45 AM 0.00 0.0 M 4.5 0.35 20F at 0545 obsv time. (-1F in Longmont 40 minutes later)
1/12/2011 5:30 AM 0.00 0.0 M 3.5 0.33
1/13/2011 6:00 AM 0.00 0.0 M 3.0 0.31 40F (!) at 0600 obsv time.
1/14/2011 6:05 AM 0.00 0.0 M 2.5 0.34 75% of ground covered with snow.
1/15/2011 6:05 AM 0.00 0.0 M 2.0 0.34 About 2/3 snow coverage averaging 2.0" deep. SWE taken from a 2.5" core.
1/16/2011 6:15 AM 0.00 0.0 M 1.0 0.30 50% of ground cover with snow averaging 2.0". SWE taken from 2.0" core.
1/17/2011 6:50 AM 0.00 0.0 M T T 1/3 snow coverage, averaging 2". Very chinooky yesterday - golf at The Heritage more difficult than usual. :-)
1/18/2011 6:30 AM T 0.0 M 0.0 M Rain yesterday at 0700-0715.
1/19/2011 5:45 AM 0.00 0.0 M 0.0 M
1/20/2011 6:30 AM 0.13 1.7 0.13 2.0 0.14
1/21/2011 6:30 AM 0.00 0.0 M 1.0 0.11
1/22/2011 7:00 AM 0.00 0.0 M T T
1/23/2011 6:50 AM 0.00 0.0 M T T
1/24/2011 7:00 AM 0.00 0.0 M T T
1/25/2011 5:30 AM 0.00 0.0 M 0.0 M
1/26/2011 5:30 AM 0.00 0.0 M 0.0 M
1/27/2011 5:30 AM 0.00 0.0 M 0.0 M
1/28/2011 5:30 AM 0.00 0.0 M 0.0 M
1/29/2011 6:00 AM 0.00 0.0 M 0.0 M
1/30/2011 7:10 AM 0.00 0.0 M 0.0 M
1/31/2011 6:25 AM T 0.0 M T T Freezing mist/fog and 20F at 0625 obsv time. Trace report for Total Snow and Ice is all ice.
2/1/2011 6:30 AM 0.08 1.4 0.08 1.5 0.09 Still lightly snowing and -9F at 0630 obsv time.
2/2/2011 6:30 AM 0.01 0.6 0.01 1.5 0.09 Clear skies and -15F at 0630 obvs time.
2/3/2011 6:00 AM 0.00 0.0 M 1.5 0.09
2/4/2011 6:00 AM 0.02 0.5 0.02 1.0 0.09
2/5/2011 7:00 AM T T T 1.0 0.09
2/6/2011 7:30 AM 0.53 5.3 0.54 5.5 0.56
2/7/2011 6:30 AM T T T 5.0 0.52
2/8/2011 6:30 AM 0.08 3.9 0.08 4.0 0.51 Snowing lightly and 5F at 0630 obsv time. Blowing and drifting snow produced total depth range of 2-5", with a median 4.0" depth.
2/9/2011 6:30 AM 0.04 0.5 0.05 4.0 0.55 Clear and -11F at 0630 obsv time.
2/10/2011 6:30 AM 0.00 0.0 M 4.0 0.38 Not a lot of melting going on yet; a little sublimation. Clear and +5F at 0630 obsv time.
2/20/2011 7:30 AM 0.01 0.0 M T T Rain.
2/21/2011 5:45 AM 0.00 0.0 M T T Foggy at 0545 obsv time.
2/23/2011 5:30 AM 0.00 0.0 M 0.0 M
2/25/2011 6:30 AM T T T T T Thick freezing fog, snowing very lightly, and 17F at 0630 obsv time.
2/26/2011 6:30 AM T 0.2 T 0.2 T
2/27/2011 7:30 AM 0.00 0.0 M 0.0 M
2/28/2011 6:00 AM T T T T T
3/1/2011 6:00 AM 0.00 0.0 M 0.0 M
3/2/2011 6:00 AM 0.00 0.0 M 0.0 M
3/3/2011 7:00 AM 0.00 0.0 M 0.0 M
3/4/2011 6:00 AM 0.00 0.0 M 0.0 M
3/5/2011 7:00 AM 0.00 0.0 M 0.0 M
3/6/2011 6:45 AM 0.00 0.0 M 0.0 M
3/7/2011 6:30 AM T 0.0 M T T Freezing fog on windshields and roads, and 23F at 0630 obsv time. No snow yet.
3/8/2011 6:50 AM T T T T T 20F and foggy, but not snowing, at 0650 obsv time. Snow yesterday and overnight only accumlated as a fine dust on windshields, decks, and roofs. Grass and roads mostly dry.
3/9/2011 6:00 AM T T T 0.0 M
3/10/2011 6:15 AM 0.00 0.0 M 0.0 M
3/11/2011 5:25 AM 0.00 0.0 M 0.0 M Very windy at 0525 obsv time.
3/12/2011 6:45 AM 0.00 0.0 M 0.0 M
3/13/2011 7:05 AM 0.07 0.0 M 0.0 M Rain started around 0500. No snow. Overcast and 38F at 0705 obsv time.
3/14/2011 5:45 AM 0.00 0.0 M 0.0 M
3/15/2011 6:10 AM 0.00 0.0 M 0.0 M
3/16/2011 6:05 AM 0.00 0.0 M 0.0 M
3/17/2011 6:30 AM 0.00 0.0 M 0.0 M
3/18/2011 6:00 AM 0.03 T T T T Light snow started before light rain at 2032. Most precip was snow that melted on surface contact.
3/19/2011 7:10 AM 0.00 0.0 M 0.0 M
3/20/2011 5:55 AM 0.00 0.0 M 0.0 M
3/21/2011 5:20 AM 0.00 0.0 M 0.0 M
3/22/2011 5:15 AM T T T 0.0 M
3/23/2011 7:00 AM 0.00 0.0 M 0.0 M
3/24/2011 6:00 AM 0.00 0.0 M 0.0 M
3/25/2011 5:30 AM T 0.0 M 0.0 M
3/26/2011 7:00 AM 0.00 0.0 M 0.0 M
3/27/2011 6:00 AM 0.00 0.0 M 0.0 M
3/28/2011 6:25 AM 0.02 T T T T Snow (yes, snow) accumulating only on decks and a little on the grass; not on the roads. 33F and still snowing at 0625 obsv time.
3/29/2011 5:25 AM 0.08 0.7 0.07 1.0 0.07 Not snowing, clear, and 29F at 0525 obsv time. Overnight snow accumulation limited to grass, decks, and cars.
3/30/2011 6:50 AM 0.00 0.0 M T T Only snow left is a few square feet of 0.5" deep patches on the north side of the house.
3/31/2011 6:10 AM 0.00 0.0 M 0.0 M
4/1/2011 6:30 AM 0.00 0.0 M 0.0 M More dry high winds overnight and continuing at 0630 obsv time.
4/2/2011 7:00 AM 0.00 0.0 M 0.0 M
4/3/2011 7:00 AM 0.00 0.0 M 0.0 M
4/4/2011 6:00 AM 0.20 0.3 0.02 0.2 0.02 Mixed rain/snow at ~0900, ending ~2000; big flakes; no street accumulation. 22F and not precipitating at 0600 obsv time.
4/5/2011 6:30 AM 0.00 0.0 M 0.0 M
4/6/2011 6:30 AM T 0.0 M 0.0 M Very mist-like precip and 41F at 0630 obsv time.
4/7/2011 6:00 AM 0.01 0.0 M 0.0 M
4/8/2011 7:00 AM 0.00 0.0 M 0.0 M Fog before 0700 left decks and windshields moist.
4/9/2011 6:15 AM 0.00 0.0 M 0.0 M
4/10/2011 6:50 AM 0.21 0.3 0.05 0.5 0.05 Snow/hail/graupel/rain 0300-0330 this morning. Yes, we may have gotten all 4 components in 30 minutes. All four were frozen together at 0650 obsv time. Accumulation only on decks and cars. Streets dry due to sublimation.
4/11/2011 6:00 AM 0.00 0.0 M 0.0 M
4/12/2011 6:00 AM 0.00 0.0 M 0.0 M
4/13/2011 6:30 AM 0.00 0.0 M 0.0 M
4/14/2011 6:15 AM 0.65 0.8 0.16 1.0 0.15 Steady light rain last night, then turned to snow just before 0615 obsv time. Still snowing heavily with big flakes and 33F at obsv time.
4/15/2011 6:00 AM 0.03 0.3 0.03 0.0 M Snowed hard yesterday morning with big flakes; melted by 11am.
4/16/2011 7:15 AM 0.00 0.0 M 0.0 M
4/17/2011 7:30 AM 0.00 0.0 M 0.0 M
4/18/2011 6:00 AM 0.00 0.0 M 0.0 M
4/19/2011 6:00 AM 0.23 0.0 M 0.0 M Nice light steady rain last night.
4/20/2011 6:30 AM 0.03 0.0 M 0.0 M Brief mid-day rainfall.
4/21/2011 6:35 AM 0.02 0.0 M 0.0 M Not raining at 0635 obsv time, but was imminent. Then rain started fifteen minutes later at 0650, but that will go on tomorrow's report.
4/22/2011 5:50 AM 0.05 0.0 M 0.0 M Strong winds kicked up at 2040, followed by rain at 2050. High winds persisted until at least 0130, but at 0550 obsv time, it was calm.
4/23/2011 6:45 AM 0.00 0.0 M 0.0 M
4/24/2011 7:00 AM T T T 0.0 M Snow did not accumulate.
4/25/2011 6:00 AM 0.24 0.0 M 0.0 M 0.10" rain observed by 2000, another 0.02" by 2030, then another 0.12" overnight.
4/26/2011 6:00 AM T 0.0 M 0.0 M
4/27/2011 6:50 AM 0.01 0.0 M 0.0 M
4/28/2011 6:15 AM 0.00 0.0 M 0.0 M
4/29/2011 7:00 AM 0.00 0.0 M 0.0 M
4/30/2011 7:00 AM T T T 0.0 M
5/1/2011 6:00 AM T T T 0.0 M
5/2/2011 6:00 AM T T T 0.0 M A quick flurry of snow blew through 1757-1813. No accumulation at all. Was golfing at Heritage at Westmoor at the time, which is about 1 mile from my station. People at my house at the time confirmed the precip duration.
5/3/2011 6:10 AM 0.00 0.0 M 0.0 M
5/4/2011 6:15 AM 0.00 0.0 M 0.0 M
5/5/2011 6:15 AM 0.00 0.0 M 0.0 M
5/6/2011 6:35 AM 0.00 0.0 M 0.0 M
5/7/2011 6:00 AM 0.00 0.0 M 0.0 M
5/8/2011 7:00 AM 0.00 0.0 M 0.0 M
5/9/2011 6:00 AM 0.00 0.0 M 0.0 M
5/10/2011 6:00 AM 0.00 0.0 M 0.0 M
5/11/2011 5:35 AM 0.46 T T T T Lightning first visible to the south at 2000.Thunder first heard at 2025.First few raindrops observed at 2040, continuing lightly and intermittently until midnight.At 0130, heavy rain/snow mix started and continued through 0535 observation time. Still raining/snow at 0730 reporting time. Snow only sticking to autos and decks, and only as a weak layer of ice.
5/12/2011 6:20 AM 1.25 T T 0.0 M No flooding per se, but big puddles are everywhere and it's soggy. Exactly 1.25" and raining and gloomy at 0620 observation time.
5/13/2011 6:10 AM 0.24 0.0 M 0.0 M
5/14/2011 7:15 AM 0.00 0.0 M 0.0 M Overcast but dry at 0715 obsv time.
5/15/2011 7:00 AM 0.21 0.0 M 0.0 M
5/16/2011 6:15 AM 0.01 0.0 M 0.0 M
5/17/2011 6:15 AM 0.00 0.0 M 0.0 M
5/18/2011 6:30 AM 0.02 0.0 M 0.0 M
5/19/2011 6:30 AM 1.41 0.0 M 0.0 M Observed 1.05" rain at 2030, additional 0.14" at 2130, then 0.22" at 0630 this morning. 40F, foggy, and lightly misting at 0630 obsv time. Moderate street flooding around 1300.
5/20/2011 6:15 AM 0.48 0.0 M 0.0 M Minor flooding on nearby fairways/greens, and puddles in my yard. 0.33" fell by 2015, additional 0.02" at 2045, 0.01" at 2145, and another 0.12" by 0615 obsv time this morning. Not raining at obsv time.
5/21/2011 6:00 AM 0.02 0.0 M 0.0 M
5/22/2011 6:00 AM 0.00 0.0 M 0.0 M
5/23/2011 6:15 AM 0.00 0.0 M 0.0 M
5/24/2011 6:15 AM 0.01 0.0 M 0.0 M
5/25/2011 6:30 AM 0.33 0.0 M 0.0 M Not home at rainfall time. I assume it was on and off throughout the day.
5/26/2011 6:15 AM 0.00 0.0 M 0.0 M
5/27/2011 6:30 AM 0.00 0.0 M 0.0 M
5/28/2011 6:15 AM 0.00 0.0 M 0.0 M
5/29/2011 5:20 AM 0.02 0.0 M 0.0 M A little foggy at 0520 obsv time.
5/30/2011 7:00 AM 0.00 0.0 M 0.0 M Light fog present and thick fog north of here at airport.
5/31/2011 6:00 AM 0.00 0.0 M 0.0 M
6/1/2011 6:15 AM 0.00 0.0 M 0.0 M
6/2/2011 6:30 AM 0.00 0.0 M 0.0 M
6/3/2011 6:30 AM 0.00 0.0 M 0.0 M
6/4/2011 6:00 AM 0.00 0.0 M 0.0 M
6/5/2011 7:00 AM 0.00 0.0 M 0.0 M
6/6/2011 6:10 AM 0.00 0.0 M 0.0 M
6/7/2011 5:45 AM 0.00 0.0 M 0.0 M
6/8/2011 6:30 AM 0.00 0.0 M 0.0 M
6/9/2011 6:30 AM 0.03 0.0 M 0.0 M Hail ~10:45pm. Light rain falling at 0630 obsv time.
6/10/2011 7:00 AM 0.01 0.0 M 0.0 M
6/11/2011 7:30 AM 0.00 0.0 M 0.0 M Overcast and cool at 0730 obsv time.
6/12/2011 7:00 AM T 0.0 M 0.0 M A few sprinkles fell 1401 to 1407.
6/13/2011 6:30 AM 0.00 0.0 M 0.0 M
6/14/2011 6:15 AM 0.00 0.0 M 0.0 M
6/15/2011 6:00 AM 0.00 0.0 M 0.0 M
6/16/2011 5:45 AM 0.00 0.0 M 0.0 M
6/17/2011 6:30 AM 0.03 0.0 M 0.0 M
6/18/2011 6:45 AM 0.00 0.0 M 0.0 M
6/19/2011 6:15 AM T 0.0 M 0.0 M A couple of drops fell around 2030 that lasted only one minute.
6/20/2011 6:30 AM 1.08 0.0 M 0.0 M Rain started ~1830, and for the most part, rained all night. Very electrical storm, particularly from 1900 to 1930. Still raining lightly at 0630 obsv time.
6/21/2011 6:25 AM 0.03 0.0 M 0.0 M A little rain in the morning, a little rain in the afternoon.
6/22/2011 5:30 AM 0.00 0.0 M 0.0 M
6/23/2011 5:45 AM 0.00 0.0 M 0.0 M
6/24/2011 5:45 AM T 0.0 M 0.0 M
6/25/2011 6:45 AM 0.00 0.0 M 0.0 M
6/26/2011 7:00 AM 0.00 0.0 M 0.0 M
6/27/2011 5:55 AM 0.00 0.0 M 0.0 M
6/28/2011 6:20 AM 0.00 0.0 M 0.0 M
6/29/2011 6:30 AM 0.00 0.0 M 0.0 M
6/30/2011 6:10 AM T 0.0 M 0.0 M
7/1/2011 6:00 AM 0.15 0.0 M 0.0 M
7/2/2011 7:00 AM 0.01 0.0 M 0.0 M
7/3/2011 7:00 AM 0.01 0.0 M 0.0 M
7/4/2011 7:00 AM 0.00 0.0 M 0.0 M
7/5/2011 7:00 AM 0.00 0.0 M 0.0 M
7/6/2011 7:10 AM 0.04 0.0 M 0.0 M
7/7/2011 5:20 AM 0.19 0.0 M 0.0 M
7/8/2011 6:20 AM 0.64 0.0 M 0.0 M Observed 0.40" at 1915, then another 0.24" fell overnight. Rain stopped at 0615 this morning, right before 0620 obsv time.
7/9/2011 7:00 AM 1.60 0.0 M 0.0 M Two intense rainfall episodes yesterday. First drops at 1314. Heavy wind, INTENSE rain, and pea-size hail started quickly at 1316. Intensity of rain and hail backed off at 1328, with precip done at 1334. 0.95" collected from first episode. Broken branches and flooding almost all the way across the street. Next round came at 1845, heaviest rain at 1850, pea-size hail from 1854-1856, rain ending at 1910, with 0.64" from this episode.
7/10/2011 5:30 AM 0.33 0.0 M 0.0 M
7/11/2011 7:00 AM 0.41 0.0 M 0.0 M
7/12/2011 6:15 AM 0.17 0.0 M 0.0 M
7/13/2011 7:05 AM 0.50 0.0 M 0.0 M Exactly 0.50" observed. Rainfall last night: a few sprinkles in the afternoon, then severe thunderstorms started at 2000, lasting into the late evening. Observed 0.06" at 2000-2020, then another 0.07" 2020-2040, with the remainder collecting overnight. 0.50" total for the 24-hr period.
7/14/2011 6:25 AM 0.16 0.0 M 0.0 M Afternoon/evening thunderstorms. Slightly less intense than the previous few days.
7/15/2011 6:30 AM 0.01 0.0 M 0.0 M
7/16/2011 6:10 AM 0.01 0.0 M 0.0 M
7/17/2011 7:05 AM 0.03 0.0 M 0.0 M
7/18/2011 6:30 AM 0.00 0.0 M 0.0 M
7/19/2011 6:35 AM 0.00 0.0 M 0.0 M
7/20/2011 6:05 AM 0.34 0.0 M 0.0 M 0.29" collected by 1657, then an additional 0.05" by 0605 obsv time. Street gutters overflowing at 1645.
7/21/2011 6:25 AM 0.01 0.0 M 0.0 M
7/22/2011 6:15 AM 0.00 0.0 M 0.0 M
7/23/2011 7:00 AM 0.00 0.0 M 0.0 M
7/24/2011 7:00 AM 0.00 0.0 M 0.0 M
7/25/2011 7:00 AM 0.00 0.0 M 0.0 M
7/26/2011 7:00 AM 0.00 0.0 M 0.0 M
7/27/2011 7:00 AM 0.55 0.0 M 0.0 M Not sure if this 0.55" is legit. Wasn't home during rain event. Possible that a neighbor oversprayed his garden.
7/28/2011 7:00 AM 0.13 0.0 M 0.0 M
7/29/2011 7:00 AM 0.00 0.0 M 0.0 M
7/30/2011 7:00 AM 0.00 0.0 M 0.0 M
7/31/2011 7:00 AM 0.00 0.0 M 0.0 M
8/1/2011 6:00 AM 0.00 0.0 M 0.0 M
8/2/2011 6:15 AM 0.01 0.0 M 0.0 M
8/3/2011 6:30 AM 0.02 0.0 M 0.0 M
8/4/2011 7:00 AM T 0.0 M 0.0 M
8/5/2011 6:30 AM T 0.0 M 0.0 M
8/6/2011 6:45 AM T 0.0 M 0.0 M
8/7/2011 7:20 AM 0.00 0.0 M 0.0 M
8/8/2011 6:45 AM 0.00 0.0 M 0.0 M
8/9/2011 6:15 AM 0.00 0.0 M 0.0 M
8/10/2011 6:30 AM 0.00 0.0 M 0.0 M
8/11/2011 6:30 AM 0.00 0.0 M 0.0 M
8/12/2011 6:50 AM 0.00 0.0 M 0.0 M
8/13/2011 6:45 AM 0.00 0.0 M 0.0 M
8/14/2011 7:00 AM 0.00 0.0 M 0.0 M
8/15/2011 6:20 AM T 0.0 M 0.0 M A couple of episodes of Trace rainfall. ~1630 and again at ~1900.
8/16/2011 6:00 AM 0.00 0.0 M 0.0 M
8/17/2011 7:05 AM 0.17 0.0 M 0.0 M
8/18/2011 6:45 AM 0.00 0.0 M 0.0 M
8/19/2011 6:15 AM 0.00 0.0 M 0.0 M
8/20/2011 7:25 AM 0.10 0.0 M 0.0 M
8/21/2011 7:40 AM 0.00 0.0 M 0.0 M
8/22/2011 7:00 AM T 0.0 M 0.0 M
8/23/2011 7:00 AM 0.00 0.0 M 0.0 M
8/24/2011 7:00 AM 0.00 0.0 M 0.0 M
8/25/2011 6:15 AM 0.00 0.0 M 0.0 M
8/26/2011 7:00 AM T 0.0 M 0.0 M
8/27/2011 7:00 AM 0.00 0.0 M 0.0 M
8/28/2011 7:00 AM 0.00 0.0 M 0.0 M
8/29/2011 6:25 AM 0.02 0.0 M 0.0 M
8/30/2011 6:15 AM 0.00 0.0 M 0.0 M
8/31/2011 7:00 AM 0.00 0.0 M 0.0 M
9/1/2011 6:15 AM 0.00 0.0 M 0.0 M
9/2/2011 7:00 AM T 0.0 M 0.0 M
9/3/2011 6:55 AM T 0.0 M 0.0 M
9/4/2011 7:00 AM 0.00 0.0 M 0.0 M
9/5/2011 7:00 AM 0.00 0.0 M 0.0 M
9/6/2011 6:20 AM 0.00 0.0 M 0.0 M
9/7/2011 6:20 AM 0.03 0.0 M 0.0 M Accumulation was from a few drops per hour from about 1400 until 0620 obsv time this morning.
9/8/2011 7:15 AM 0.20 0.0 M 0.0 M Exactly 0.20" in gauge.
9/9/2011 6:25 AM 0.00 0.0 M 0.0 M
9/10/2011 7:00 AM 0.00 0.0 M 0.0 M
9/11/2011 7:10 AM 0.00 0.0 M 0.0 M
9/12/2011 6:35 AM 0.00 0.0 M 0.0 M
9/13/2011 6:10 AM 0.02 0.0 M 0.0 M Trace rain at 1640, but the "bulk" of the 0.02" accumulation occurred ~2030.
9/14/2011 6:10 AM 0.00 0.0 M 0.0 M
9/15/2011 6:25 AM 0.84 0.0 M 0.0 M Continuous light rain until about 1830, then got heavier; unsure of when rain ended. Not raining at 0625 obsv time. Observed 0.35 at ~2015, the rest collected overnight.
9/16/2011 6:15 AM 0.01 0.0 M 0.0 M Thick fog at 0615 obsv time. Rocky Mtn Airport north of me is clear, due to its slightly higher elevation, but then thicker fog persists just north of it, all the way to at least Longmont.
9/17/2011 6:45 AM 0.00 0.0 M 0.0 M
9/18/2011 7:00 AM 0.01 0.0 M 0.0 M
9/19/2011 6:25 AM 0.00 0.0 M 0.0 M
9/20/2011 6:40 AM 0.00 0.0 M 0.0 M
9/21/2011 6:30 AM T 0.0 M 0.0 M
9/22/2011 6:25 AM 0.04 0.0 M 0.0 M
9/23/2011 6:00 AM 0.00 0.0 M 0.0 M
9/24/2011 7:00 AM 0.00 0.0 M 0.0 M
9/25/2011 7:00 AM 0.00 0.0 M 0.0 M
9/26/2011 6:35 AM 0.00 0.0 M 0.0 M
9/27/2011 6:20 AM 0.00 0.0 M 0.0 M
9/28/2011 6:45 AM 0.00 0.0 M 0.0 M
9/29/2011 6:00 AM 0.00 0.0 M 0.0 M
9/30/2011 6:20 AM 0.00 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
5/11/2011 5/21/2011 7:00 AM 11 1.35 0.0 M
9/7/2011 9/08/2011 7:20 PM 2 M M M



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
4/10/2011 3:00 AM Maybe snow/hail/graupel/rain combo 0300-0330. 1/4" Pea Size Rice Rice Hard 30 3min minor leaf damage Intermittent False Same time as rain After smaller hail
6/8/2011 10:45 PM Not alot of hail. Moderately electrical. No pad (sorry Nolan). 1" Quarter Size 1/2" Grape 3/8" Mixed|White Ice 5 2min no damage Continuous True After rain Same time as smaller hail
7/8/2011 1:35 PM No pad. Rain started at 1314, heavi 1/4" Pea Size 1/4" Pea Size Rice Mixed 14 1min shredded leaves Continuous True After rain Same time as smaller hail 30-40
7/8/2011 6:50 PM Note that this is the second hail report of the day (7/8/11). Hail fell 1854-1856. First hail report registered earlier with hail at 1316-1328. 3/8" 1/4" Pea Size 1/4" Pea Size Mixed|White Ice 4 1min minor leaf damage Continuous True Same time as rain After smaller hail 30-40