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 16 1.05 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 16 0.79 0.25 1 0.25 1 0.00 0 0 1 0 1.5 1 0
Dec 16 0.61 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 17 0.42 0.31 2 0.31 2 0.00 0 0 1 1 2.5 1 0
Feb 17 0.40 0.16 2 0.16 2 0.00 0 0 2 0 0.5 1 0
March 17 1.51 0.52 4 0.52 4 0.00 0 0 2 2 0.0 0 0
April 17 1.88 2.06 9 2.06 9 0.00 0 0 9 0 6.1 4 0
May 17 2.28 1.48 6 1.48 6 0.00 0 0 5 1 0.0 0 0
June 17 1.83 1.43 4 1.43 4 0.00 0 0 4 0 0.0 0 0
July 17 1.57 0.67 4 0.67 4 0.00 0 0 4 0 0.0 0 0
Aug 17 1.89 0.87 4 0.87 4 0.00 0 0 4 0 0.0 0 0
Sept 17 1.00 0.79 3 0.79 3 0.00 0 0 3 0 0.0 0 0
Water Year Totals: 15.23" 8.54" 39 days 8.54" 39 0.00" 0 days 0 35 days 4 days 10.6" 7 days 0 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
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016
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
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016 0.25
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016
12/16/2016
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017
1/4/2017
1/5/2017
1/6/2017 M
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017 T
1/14/2017
1/15/2017
1/16/2017 0.31
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017 0.03
2/21/2017
2/22/2017
2/23/2017
2/24/2017 0.13
2/25/2017
2/26/2017
2/27/2017
2/28/2017
3/1/2017
3/2/2017
3/3/2017
3/4/2017
3/5/2017
3/6/2017
3/7/2017
3/8/2017
3/9/2017
3/10/2017
3/11/2017 T
3/12/2017
3/13/2017
3/14/2017
3/15/2017
3/16/2017
3/17/2017
3/18/2017
3/19/2017
3/20/2017
3/21/2017
3/22/2017
3/23/2017
3/24/2017 0.30
3/25/2017
3/26/2017
3/27/2017
3/28/2017 T
3/29/2017 0.22
3/30/2017
3/31/2017
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.24
4/2/2017
4/3/2017 0.14
4/4/2017 0.45
4/5/2017 0.22
4/6/2017
4/7/2017
4/8/2017
4/9/2017
4/10/2017
4/11/2017
4/12/2017
4/13/2017
4/14/2017
4/15/2017
4/16/2017
4/17/2017
4/18/2017
4/19/2017
4/20/2017
4/21/2017 0.27
4/22/2017 0.18
4/23/2017
4/24/2017
4/25/2017
4/26/2017 0.13
4/27/2017
4/28/2017
4/29/2017 0.23
4/30/2017 0.20
5/1/2017
5/2/2017
5/3/2017 T
5/4/2017
5/5/2017
5/6/2017
5/7/2017
5/8/2017 0.07
5/9/2017 0.88
5/10/2017
5/11/2017 0.29
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
5/22/2017
5/23/2017
5/24/2017
5/25/2017
5/26/2017 0.19
5/27/2017
5/28/2017
5/29/2017 0.05
5/30/2017
5/31/2017
6/1/2017
6/2/2017 0.21
6/3/2017
6/4/2017
6/5/2017
6/6/2017
6/7/2017 0.85
6/8/2017
6/9/2017
6/10/2017
6/11/2017
6/12/2017
6/13/2017
6/14/2017
6/15/2017
6/16/2017
6/17/2017
6/18/2017
6/19/2017
6/20/2017
6/21/2017
6/22/2017
6/23/2017 0.25
6/24/2017
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017
6/30/2017 0.12
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017
7/3/2017
7/4/2017
7/5/2017
7/6/2017
7/7/2017
7/8/2017
7/9/2017
7/10/2017
7/11/2017
7/12/2017
7/13/2017
7/14/2017
7/15/2017
7/16/2017
7/17/2017
7/18/2017
7/19/2017
7/20/2017
7/21/2017
7/22/2017 0.15
7/23/2017
7/24/2017
7/25/2017
7/26/2017 0.19
7/27/2017 0.12
7/28/2017
7/29/2017 0.21
7/30/2017
7/31/2017
8/1/2017
8/2/2017
8/3/2017
8/4/2017
8/5/2017 0.14
8/6/2017 0.23
8/7/2017 0.32
8/8/2017 0.18
8/9/2017
8/10/2017
8/11/2017
8/12/2017
8/13/2017
8/14/2017
8/15/2017
8/16/2017
8/17/2017
8/18/2017
8/19/2017
8/20/2017
8/21/2017
8/22/2017
8/23/2017
8/24/2017
8/25/2017
8/26/2017
8/27/2017
8/28/2017
8/29/2017
8/30/2017
8/31/2017
9/1/2017
9/2/2017
9/3/2017
9/4/2017
9/5/2017
9/6/2017
9/7/2017
9/8/2017
9/9/2017
9/10/2017
9/11/2017
9/12/2017
9/13/2017
9/14/2017
9/15/2017
9/16/2017
9/17/2017
9/18/2017
9/19/2017
9/20/2017
9/21/2017
9/22/2017
9/23/2017
9/24/2017 0.51
9/25/2017 0.15
9/26/2017
9/27/2017 0.13
9/28/2017
9/29/2017
9/30/2017



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
11/17/2016 7:00 AM 0.25 1.5 0.25 M M
1/6/2017 7:00 AM M M M M M Measurement includes snow from 01/04-01/05 {EDIT: Observer reported 0.52 of new precip/new snow SWE and 9.0 of new snowfall but indicated in the notes that this was for a time period of greater than 24 hours. Report should be entered into a multi-day report instead of a 24 hour report. Changed reports of 0.52 and 9.0 to NA until observer can be contacted to verify. Submission Time Before EDIT: 1/06/2017 9:48 AM CoCoSTAFF DNT}
1/13/2017 7:00 AM T M M M M light, brief snowfall
1/16/2017 7:00 AM 0.31 2.5 0.31 M M
2/20/2017 7:00 AM 0.03 M M M M light rain about 9pm
2/24/2017 7:00 AM 0.13 0.5 0.13 M M Light rain and snow
3/11/2017 7:00 AM T M M M M
3/24/2017 7:00 AM 0.30 M M M M Wind, and more wind
3/28/2017 7:00 AM T M M M M
3/29/2017 7:00 AM 0.22 M M M M
4/1/2017 7:00 AM 0.24 M M M M
4/3/2017 7:00 AM 0.14 M M M M
4/4/2017 7:00 AM 0.45 3.0 0.45 M M
4/5/2017 7:00 AM 0.22 1.0 M M M
4/21/2017 7:00 AM 0.27 M M M M
4/22/2017 7:00 AM 0.18 M M M M
4/26/2017 7:00 AM 0.13 M M M M
4/29/2017 7:00 AM 0.23 2.0 0.23 M M Snow started about 6pm 4/28. and hasnt stopped yet
4/30/2017 7:00 AM 0.20 0.1 M M M
5/3/2017 7:00 AM T M M M M
5/8/2017 7:00 AM 0.07 M M M M High winds, heavy rain about 3pm until 4:30pm
5/9/2017 7:00 AM 0.88 M M M M Rain and light hail around 3pm
5/11/2017 7:00 AM 0.29 M M M M
5/26/2017 7:00 AM 0.19 M M M M Thunderstorms overnight
5/29/2017 7:00 AM 0.05 M M M M Light rain overnight
6/2/2017 7:00 AM 0.21 M M M M Heavy thunder and rain, brief but strong
6/7/2017 7:00 AM 0.85 M M M M Heavy rain, continuous rolling thunder, lightning
6/23/2017 7:00 AM 0.25 M M M M {EDIT: Observer reported 0.25 of new precip. QPE data and surrounding reports of 0.00's indicate this could be a date error. 0.25 matches better with reports in the area on the following day. Changed report of 0.25 to NA until observer can be contacted to verify. Submission Time Before EDIT: 6/24/2017 7:54 AM CoCoSTAFF DNT} (edit: date changed to 6/23. PG)
6/30/2017 7:00 AM 0.12 M M M M Thunderstorm around midnight
7/22/2017 7:00 AM 0.15 M M M M light rain evening and overnight
7/26/2017 7:00 AM 0.19 M M M M Light rain most of the night
7/27/2017 7:00 AM 0.12 M M M M light rain overnight
7/29/2017 7:00 AM 0.21 M M M M
8/5/2017 7:00 AM 0.14 M M M M
8/6/2017 7:00 AM 0.23 M M M M
8/7/2017 7:00 AM 0.32 M M M M
8/8/2017 7:00 AM 0.18 M M M M
9/24/2017 7:00 AM 0.51 M M M M
9/25/2017 7:00 AM 0.15 M M M M
9/27/2017 7:00 AM 0.13 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