Station Overview Station Location
Station Number CO-AD-207 Latitude 39.947543
Station Name Thornton 3.9 NNE Longitude -104.937969
County Adams Elevation (ft) 5348



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 15 1.05 1.47 4 1.47 4 0.00 0 0 4 0 0.0 0 0
Nov 15 0.79 2.16 6 2.16 6 0.00 0 0 5 1 10.4 4 0
Dec 15 0.61 0.68 4 0.68 4 0.00 0 0 2 2 11.0 2 1
Jan 16 0.42 0.41 2 0.41 2 0.00 0 0 2 0 4.9 2 0
Feb 16 0.40 0.82 4 0.82 4 0.00 0 0 3 0 11.0 2 1
March 16 1.51 0.30 2 0.30 2 0.00 0 0 2 0 0.4 1 0
April 16 1.88 1.85 5 1.85 5 0.00 0 0 4 1 2.3 2 0
May 16 2.28 1.21 6 1.21 6 0.00 0 0 5 1 0.0 0 0
June 16 1.83 0.91 6 0.91 6 0.00 0 0 3 2 0.0 0 0
July 16 1.57 0.57 6 0.57 6 0.00 0 0 6 0 0.0 0 0
Aug 16 1.89 0.20 2 0.20 2 0.00 0 0 2 0 0.0 0 0
Sept 16 1.00 0.00 1 0.00 1 0.00 0 0 0 1 0.0 0 0
Water Year Totals: 15.23" 10.58" 48 days 10.58" 48 0.00" 0 days 0 38 days 8 days 40.0" 13 days 2 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
10/1/2015
10/2/2015
10/3/2015
10/4/2015
10/5/2015
10/6/2015 0.20
10/7/2015 0.12
10/8/2015
10/9/2015
10/10/2015
10/11/2015
10/12/2015
10/13/2015
10/14/2015
10/15/2015
10/16/2015
10/17/2015
10/18/2015
10/19/2015
10/20/2015
10/21/2015 0.55
10/22/2015 0.60
10/23/2015
10/24/2015
10/25/2015
10/26/2015
10/27/2015
10/28/2015
10/29/2015
10/30/2015
10/31/2015
11/1/2015
11/2/2015
11/3/2015
11/4/2015
11/5/2015 0.82
11/6/2015
11/7/2015
11/8/2015
11/9/2015
11/10/2015
11/11/2015 0.37
11/12/2015
11/13/2015
11/14/2015
11/15/2015
11/16/2015
11/17/2015 0.61
11/18/2015
11/19/2015
11/20/2015
11/21/2015
11/22/2015
11/23/2015
11/24/2015
11/25/2015
11/26/2015 T
11/27/2015 0.21
11/28/2015
11/29/2015
11/30/2015 0.15
12/1/2015
12/2/2015
12/3/2015
12/4/2015
12/5/2015
12/6/2015
12/7/2015
12/8/2015
12/9/2015
12/10/2015
12/11/2015
12/12/2015
12/13/2015
12/14/2015
12/15/2015 0.40
12/16/2015
12/17/2015
12/18/2015
12/19/2015
12/20/2015
12/21/2015
12/22/2015
12/23/2015 T
12/24/2015 T
12/25/2015
12/26/2015 0.28
12/27/2015
12/28/2015
12/29/2015
12/30/2015
12/31/2015
Day of YearDaily PrcpMultiday Prcp
1/1/2016
1/2/2016
1/3/2016
1/4/2016
1/5/2016
1/6/2016
1/7/2016
1/8/2016
1/9/2016 0.30
1/10/2016
1/11/2016
1/12/2016
1/13/2016
1/14/2016
1/15/2016
1/16/2016
1/17/2016
1/18/2016
1/19/2016
1/20/2016
1/21/2016
1/22/2016
1/23/2016
1/24/2016
1/25/2016
1/26/2016
1/27/2016
1/28/2016
1/29/2016
1/30/2016
1/31/2016 0.11
2/1/2016 0.10
2/2/2016 0.66
2/3/2016
2/4/2016
2/5/2016 0.00
2/6/2016
2/7/2016
2/8/2016
2/9/2016
2/10/2016
2/11/2016
2/12/2016
2/13/2016
2/14/2016
2/15/2016
2/16/2016
2/17/2016
2/18/2016
2/19/2016
2/20/2016
2/21/2016
2/22/2016
2/23/2016 0.06
2/24/2016
2/25/2016
2/26/2016
2/27/2016
2/28/2016
2/29/2016
3/1/2016
3/2/2016
3/3/2016
3/4/2016
3/5/2016
3/6/2016
3/7/2016
3/8/2016 0.20
3/9/2016
3/10/2016
3/11/2016
3/12/2016
3/13/2016
3/14/2016
3/15/2016
3/16/2016
3/17/2016
3/18/2016
3/19/2016
3/20/2016
3/21/2016
3/22/2016
3/23/2016 M
3/24/2016
3/25/2016 M
3/26/2016
3/27/2016
3/28/2016
3/29/2016
3/30/2016 0.10
3/31/2016
Day of YearDaily PrcpMultiday Prcp
4/1/2016
4/2/2016
4/3/2016
4/4/2016
4/5/2016
4/6/2016
4/7/2016
4/8/2016
4/9/2016
4/10/2016
4/11/2016 0.44
4/12/2016
4/13/2016
4/14/2016
4/15/2016
4/16/2016 0.59
4/17/2016
4/18/2016
4/19/2016
4/20/2016
4/21/2016
4/22/2016
4/23/2016
4/24/2016
4/25/2016
4/26/2016 0.06
4/27/2016 T
4/28/2016
4/29/2016
4/30/2016 0.76
5/1/2016
5/2/2016
5/3/2016
5/4/2016
5/5/2016
5/6/2016
5/7/2016
5/8/2016 0.06
5/9/2016 T
5/10/2016
5/11/2016 0.10
5/12/2016
5/13/2016
5/14/2016
5/15/2016
5/16/2016 0.15
5/17/2016 0.58
5/18/2016
5/19/2016
5/20/2016
5/21/2016
5/22/2016
5/23/2016
5/24/2016
5/25/2016
5/26/2016
5/27/2016 0.32
5/28/2016
5/29/2016
5/30/2016
5/31/2016
6/1/2016 0.70
6/2/2016
6/3/2016
6/4/2016
6/5/2016
6/6/2016
6/7/2016 0.00
6/8/2016
6/9/2016
6/10/2016
6/11/2016
6/12/2016
6/13/2016
6/14/2016 0.15
6/15/2016
6/16/2016
6/17/2016
6/18/2016
6/19/2016
6/20/2016
6/21/2016
6/22/2016
6/23/2016
6/24/2016
6/25/2016
6/26/2016
6/27/2016
6/28/2016 T
6/29/2016 T
6/30/2016 0.06
Day of YearDaily PrcpMultiday Prcp
7/1/2016 0.10
7/2/2016 0.13
7/3/2016
7/4/2016
7/5/2016
7/6/2016 0.14
7/7/2016
7/8/2016
7/9/2016
7/10/2016
7/11/2016
7/12/2016
7/13/2016
7/14/2016
7/15/2016
7/16/2016 0.10
7/17/2016
7/18/2016
7/19/2016 0.05
7/20/2016 0.05
7/21/2016
7/22/2016
7/23/2016
7/24/2016
7/25/2016
7/26/2016
7/27/2016
7/28/2016
7/29/2016
7/30/2016
7/31/2016
8/1/2016
8/2/2016
8/3/2016
8/4/2016
8/5/2016
8/6/2016
8/7/2016
8/8/2016
8/9/2016
8/10/2016
8/11/2016
8/12/2016
8/13/2016
8/14/2016
8/15/2016
8/16/2016
8/17/2016
8/18/2016
8/19/2016
8/20/2016 0.05
8/21/2016
8/22/2016
8/23/2016
8/24/2016
8/25/2016
8/26/2016 0.15
8/27/2016
8/28/2016
8/29/2016
8/30/2016
8/31/2016
9/1/2016
9/2/2016
9/3/2016
9/4/2016
9/5/2016
9/6/2016
9/7/2016
9/8/2016
9/9/2016
9/10/2016
9/11/2016
9/12/2016
9/13/2016 T
9/14/2016
9/15/2016
9/16/2016
9/17/2016
9/18/2016
9/19/2016
9/20/2016
9/21/2016
9/22/2016
9/23/2016
9/24/2016
9/25/2016
9/26/2016
9/27/2016
9/28/2016
9/29/2016
9/30/2016



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/6/2015 7:00 AM 0.20 M M M M
10/7/2015 7:00 AM 0.12 M M M M PM rain, much lighter and better soaking.
10/21/2015 7:00 AM 0.55 M M M M Nice soaking rain all night.
10/22/2015 7:00 AM 0.60 M M M M
11/5/2015 7:00 AM 0.82 M M M M Heavy rain started about 10pm. Followed by snow.
11/11/2015 7:00 AM 0.37 2.5 0.37 M M
11/17/2015 7:00 AM 0.61 2.5 0.30 M M Very windy, blowing snow sideways
11/26/2015 7:00 AM T M M M M Bitter cold
11/27/2015 7:00 AM 0.21 4.0 0.21 M M
11/30/2015 7:00 AM 0.15 1.4 0.15 M M
12/15/2015 7:00 AM 0.40 5.0 0.40 M M
12/23/2015 7:00 AM T M M M M
12/24/2015 7:00 AM T M M M M Very light dusting of snow about 6pm
12/26/2015 7:00 AM 0.28 6.0 0.28 6.0 M Cleared drive at 11am yesterday of 3 inches, again this morning of another 3 inches of snow.
1/9/2016 7:00 AM 0.30 3.2 0.30 M M 3 day accumulation, unable to post sooner.
1/31/2016 7:00 AM 0.11 1.7 M M M {EDIT: Observer reported 1.7 of new snowfall accumulation with a SWE of 1.75. Looks like the observer accidently reported the new snowfall amount twice, once in the wrong category. Changed new snowfall SWE report of 1.75 to NA until observer can be contacted to verify. Originally Submitted: 1/31/2016 7:56 AM -DNT}
2/1/2016 7:00 AM 0.10 1.0 0.10 1.0 0.10
2/2/2016 7:00 AM 0.66 10.0 0.66 M M windy and snow all night
2/5/2016 7:00 AM 0.00 0.0 M M M No new snow overnight
2/23/2016 7:00 AM 0.06 M M M M light snow
3/8/2016 7:00 AM 0.20 M M M M Rain/sleet mix
3/23/2016 7:00 AM M M M M M Snow and wind started about 7am. Cant get to rain gauge thru wind and piled snow. No snow overnight {EDIT: Observer mentioned that piled snow prevented them from getting to the rain gauge to measure. These notes definitely help us understand the situation. Changed reported value of 0.00 to NA and will contact the observer. Submission Time Before EDIT: 3/23/2016 11:25 AM -DNT}
3/25/2016 7:00 AM M 0.4 0.05 M M EDIT: This may be 3/26 ob. 0.45 precip set to NA pending followup with observer. OST 3/26/2016 9:38 a.m. -SDH-
3/30/2016 7:00 AM 0.10 M M M M
4/11/2016 7:00 AM 0.44 M M M M
4/16/2016 7:00 AM 0.59 1.8 0.28 M M rain and snow mix
4/26/2016 7:00 AM 0.06 M M M M Brief thunderstorm around 6am, small hail and rain
4/27/2016 7:00 AM T M M M M
4/30/2016 7:00 AM 0.76 0.5 0.76 M M drizzle, light rain, snow
5/8/2016 7:00 AM 0.06 M M M M
5/9/2016 7:00 AM T M M M M
5/11/2016 7:00 AM 0.10 M M M M
5/16/2016 7:00 AM 0.15 M M M M
5/17/2016 7:00 AM 0.58 M M M M
5/27/2016 7:00 AM 0.32 M M M M light hail and heavy rain briefly in afternoon
6/1/2016 7:00 AM 0.70 M M M M Heavy rain about 3am, lasted close to one hour
6/7/2016 7:00 AM 0.00 0.0 M M M Thunder and clouds, no rain
6/14/2016 7:00 AM 0.15 M M M M
6/28/2016 7:00 AM T M M M M
6/29/2016 7:00 AM T M M M M
6/30/2016 7:00 AM 0.06 M M M M
7/1/2016 7:00 AM 0.10 M M M M
7/2/2016 7:00 AM 0.13 M M M M
7/6/2016 7:00 AM 0.14 M M M M Brief afternoon thunderstorm, high winds and big rain drops
7/16/2016 7:00 AM 0.10 M M M M
7/19/2016 7:00 AM 0.05 M M M M
7/20/2016 7:00 AM 0.05 M M M M
8/20/2016 7:00 AM 0.05 M M M M
8/26/2016 7:00 AM 0.15 M M M M
9/13/2016 7:00 AM T M M M 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