Station Overview Station Location
Station Number CO-AR-267 Latitude 39.6723747253418
Station Name Aurora 3.3 ESE Longitude -104.760917663574
County Arapahoe Elevation (ft) 5684



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 17 1.14 0.91 10 0.91 10 0.00 0 0 3 5 0.5 2 2
Nov 17 0.90 0.08 3 0.08 3 0.00 0 0 2 1 0.0 0 0
Dec 17 0.63 0.17 10 0.17 10 0.00 0 0 3 3 2.9 3 4
Jan 18 0.58 0.71 27 0.71 27 0.00 0 0 4 3 8.2 4 4
Feb 18 0.57 0.29 10 0.29 10 0.00 0 0 2 5 8.2 4 4
March 18 1.58 1.18 7 1.18 3 0.00 4 0 2 1 8.7 2 2
April 18 2.07 1.23 12 1.05 11 0.18 1 1 9 0 2.0 3 3
May 18 2.40 1.67 13 1.67 13 0.00 0 0 6 5 0.0 0 0
June 18 2.10 1.66 16 1.66 16 0.00 0 0 5 2 0.0 0 0
July 18 2.24 2.40 16 2.40 16 0.00 0 0 8 3 0.0 0 0
Aug 18 2.54 0.75 8 0.75 8 0.00 0 0 4 1 0.0 0 0
Sept 18 1.26 1.44 2 1.44 2 0.00 0 0 1 1 0.0 0 0
Water Year Totals: 18.01" 12.49" 134 days 12.31" 129 0.18" 5 days 1 49 days 30 days 30.5" 18 days 19 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
10/1/2017 T
10/2/2017 0.13
10/3/2017 0.13
10/4/2017
10/5/2017 0.00
10/6/2017
10/7/2017
10/8/2017
10/9/2017 0.65
10/10/2017 T
10/11/2017 0.00
10/12/2017
10/13/2017
10/14/2017
10/15/2017
10/16/2017
10/17/2017
10/18/2017
10/19/2017
10/20/2017
10/21/2017
10/22/2017
10/23/2017
10/24/2017
10/25/2017
10/26/2017
10/27/2017 T
10/28/2017
10/29/2017
10/30/2017 T
10/31/2017 T
11/1/2017
11/2/2017
11/3/2017
11/4/2017
11/5/2017
11/6/2017
11/7/2017 0.06
11/8/2017 0.02
11/9/2017
11/10/2017
11/11/2017
11/12/2017
11/13/2017
11/14/2017
11/15/2017
11/16/2017
11/17/2017
11/18/2017 T
11/19/2017
11/20/2017
11/21/2017
11/22/2017
11/23/2017
11/24/2017
11/25/2017
11/26/2017
11/27/2017
11/28/2017
11/29/2017
11/30/2017
12/1/2017
12/2/2017
12/3/2017
12/4/2017
12/5/2017
12/6/2017
12/7/2017
12/8/2017
12/9/2017
12/10/2017
12/11/2017
12/12/2017
12/13/2017
12/14/2017 0.03
12/15/2017
12/16/2017
12/17/2017
12/18/2017
12/19/2017
12/20/2017
12/21/2017 T
12/22/2017 0.02
12/23/2017
12/24/2017 0.12
12/25/2017
12/26/2017 T
12/27/2017 0.00
12/28/2017 0.00
12/29/2017 0.00
12/30/2017 T
12/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2018 T
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 0.00
1/5/2018 0.00
1/6/2018 0.00
1/7/2018 0.00
1/8/2018 0.00
1/9/2018 0.00
1/10/2018 0.00
1/11/2018 0.14
1/12/2018 0.00
1/13/2018 T
1/14/2018 0.00
1/15/2018 T
1/16/2018 0.01
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.29
1/22/2018 0.27
1/23/2018 0.00
1/24/2018
1/25/2018
1/26/2018 0.00
1/27/2018
1/28/2018 0.00
1/29/2018 0.00
1/30/2018 0.00
1/31/2018
2/1/2018
2/2/2018
2/3/2018
2/4/2018
2/5/2018
2/6/2018
2/7/2018
2/8/2018
2/9/2018
2/10/2018 T
2/11/2018 0.23
2/12/2018 T
2/13/2018 T
2/14/2018
2/15/2018
2/16/2018 0.06
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 T
2/20/2018
2/21/2018
2/22/2018 0.00
2/23/2018 T
2/24/2018
2/25/2018
2/26/2018
2/27/2018
2/28/2018
3/1/2018 T
3/2/2018
3/3/2018
3/4/2018
3/5/2018
3/6/2018
3/7/2018
3/8/2018
3/9/2018
3/10/2018
3/11/2018
3/12/2018
3/13/2018
3/14/2018
3/15/2018
3/16/2018
3/17/2018
3/18/2018
3/19/2018 0.63
3/20/2018
3/21/2018
3/22/2018
3/23/2018
3/24/2018
3/25/2018
3/26/2018
3/27/2018 0.55
3/28/2018 **
3/29/2018 **
3/30/2018 **
3/31/2018 **
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.18
4/2/2018
4/3/2018
4/4/2018
4/5/2018
4/6/2018
4/7/2018 0.06
4/8/2018 0.03
4/9/2018 0.13
4/10/2018 0.06
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.20
4/14/2018 0.01
4/15/2018
4/16/2018
4/17/2018
4/18/2018
4/19/2018
4/20/2018
4/21/2018 0.22
4/22/2018 0.28
4/23/2018
4/24/2018 0.06
4/25/2018
4/26/2018
4/27/2018
4/28/2018
4/29/2018
4/30/2018
5/1/2018
5/2/2018
5/3/2018 0.70
5/4/2018 0.31
5/5/2018
5/6/2018
5/7/2018
5/8/2018
5/9/2018
5/10/2018
5/11/2018
5/12/2018 0.04
5/13/2018 T
5/14/2018 0.10
5/15/2018 0.40
5/16/2018 T
5/17/2018
5/18/2018
5/19/2018
5/20/2018
5/21/2018
5/22/2018 T
5/23/2018 T
5/24/2018 0.00
5/25/2018
5/26/2018
5/27/2018
5/28/2018
5/29/2018 0.12
5/30/2018 0.00
5/31/2018 T
6/1/2018
6/2/2018
6/3/2018
6/4/2018
6/5/2018
6/6/2018
6/7/2018 0.05
6/8/2018 0.00
6/9/2018 0.00
6/10/2018 0.00
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 0.00
6/15/2018 T
6/16/2018 0.06
6/17/2018 0.00
6/18/2018 0.75
6/19/2018
6/20/2018 0.35
6/21/2018
6/22/2018 T
6/23/2018
6/24/2018
6/25/2018 0.45
6/26/2018 0.00
6/27/2018
6/28/2018
6/29/2018
6/30/2018
Day of YearDaily PrcpMultiday Prcp
7/1/2018 T
7/2/2018
7/3/2018 0.02
7/4/2018
7/5/2018 T
7/6/2018 0.12
7/7/2018
7/8/2018
7/9/2018 0.15
7/10/2018 0.00
7/11/2018
7/12/2018
7/13/2018
7/14/2018
7/15/2018
7/16/2018 0.90
7/17/2018
7/18/2018
7/19/2018
7/20/2018
7/21/2018
7/22/2018
7/23/2018 0.07
7/24/2018 1.02
7/25/2018 0.09
7/26/2018 0.03
7/27/2018 0.00
7/28/2018 T
7/29/2018 0.00
7/30/2018 0.00
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.21
8/5/2018 T
8/6/2018
8/7/2018
8/8/2018
8/9/2018
8/10/2018
8/11/2018
8/12/2018
8/13/2018
8/14/2018
8/15/2018 0.03
8/16/2018
8/17/2018
8/18/2018
8/19/2018 0.50
8/20/2018
8/21/2018
8/22/2018 0.01
8/23/2018
8/24/2018
8/25/2018
8/26/2018
8/27/2018
8/28/2018
8/29/2018
8/30/2018
8/31/2018
9/1/2018 T
9/2/2018
9/3/2018
9/4/2018
9/5/2018
9/6/2018
9/7/2018
9/8/2018
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018 1.44
9/21/2018
9/22/2018
9/23/2018
9/24/2018
9/25/2018
9/26/2018
9/27/2018
9/28/2018
9/29/2018
9/30/2018



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2017 7:00 AM T M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/2/2017 7:00 AM 0.13 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/3/2017 7:00 AM 0.13 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/5/2017 7:00 AM 0.00 M M M M Fog with zero vis before sunrise
10/9/2017 7:00 AM 0.65 0.5 M 0.5 M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001) {EDIT: Observer reported 0.5 of new snowfall depth with a melted core value of 0.65. SWE appears to be a typo. Changed reports of 0.65 to NA until observer can be contacted to verify. Submission Time Before EDIT: 10/09/2017 6:40 PM CoCoSTAFF DNT}
10/10/2017 7:00 AM T M M M M Thick frost on car
10/11/2017 7:00 AM 0.00 M M M M minimal frost on car windshield
10/27/2017 7:00 AM T 0.0 T 0.0 T mist an light snow
10/30/2017 7:00 AM T M M M M light mist freezing on some surfaces
10/31/2017 7:00 AM T M M M M current heavy fog (1/8 mi)
11/7/2017 7:00 AM 0.06 M M M M water was frozen in the collector
11/8/2017 7:00 AM 0.02 M M M M precip frozen in collector
11/18/2017 7:00 AM T M M M M {EDIT: Observer reported T for new snow depth with a melted core value of 0.25. If there is T of new snow there wouldn't be a melted core value greater than that. Changed new snow of T and SWE of 0.25 to NA until observer can be contacted to verify correct amount. CoCoSTAFF DNT}
12/14/2017 7:00 AM 0.03 1.6 0.03 1.6 0.03
12/21/2017 7:00 AM T T 0.01 T 0.01 snow grains
12/22/2017 7:00 AM 0.02 0.3 0.02 0.3 0.02
12/24/2017 7:00 AM 0.12 1.0 0.12 1.1 0.13
12/26/2017 7:00 AM T T T 0.3 0.01 Light snow currently (lt flurries)
12/27/2017 7:00 AM 0.00 M M M M
12/28/2017 7:00 AM 0.00 M M M M
12/29/2017 7:00 AM 0.00 M M M M
12/30/2017 7:00 AM T T T T T
12/31/2017 7:00 AM 0.00 0.0 M M M
1/1/2018 7:00 AM T T T T T
1/2/2018 7:00 AM 0.00 M M M M
1/3/2018 7:00 AM 0.00 M M M M
1/4/2018 7:00 AM 0.00 M M M M
1/5/2018 7:00 AM 0.00 M M M M
1/6/2018 7:00 AM 0.00 M M M M
1/7/2018 7:00 AM 0.00 M M M M
1/8/2018 7:00 AM 0.00 M M M M
1/9/2018 7:00 AM 0.00 M M M M
1/10/2018 7:00 AM 0.00 M M M M
1/11/2018 7:00 AM 0.14 0.1 0.14 0.1 0.14 Rain turned to snow. Collector had .3 of ice with .1 of snow. When melted it was .14.
1/12/2018 7:00 AM 0.00 M M M M
1/13/2018 7:00 AM T T T T T freezing rain (drizzle) turned to light snow.
1/14/2018 7:00 AM 0.00 M M M M light frost
1/15/2018 7:00 AM T M M M M freezing rain and small snow pellets
1/16/2018 7:00 AM 0.01 0.1 0.01 0.1 0.01
1/17/2018 7:00 AM 0.00 M M M M
1/18/2018 7:00 AM 0.00 M M M M
1/19/2018 7:00 AM 0.00 M M M M
1/20/2018 7:00 AM 0.00 M M M M
1/21/2018 7:00 AM 0.29 4.5 0.29 4.5 0.29 Currently light snow
1/22/2018 7:00 AM 0.27 3.5 0.27 4.5 0.57
1/23/2018 7:00 AM 0.00 M M M M
1/26/2018 7:00 AM 0.00 M M M M
1/28/2018 7:00 AM 0.00 M M M M
1/29/2018 7:00 AM 0.00 M M M M
1/30/2018 7:00 AM 0.00 M M M M
2/10/2018 7:00 AM T T T T T
2/11/2018 7:00 AM 0.23 5.0 0.23 5.0 0.23
2/12/2018 7:00 AM T T T T T
2/13/2018 7:00 AM T T T T T
2/16/2018 7:00 AM 0.06 2.5 0.06 2.5 0.06
2/17/2018 7:00 AM 0.00 M M M M
2/18/2018 7:00 AM 0.00 M M M M
2/19/2018 7:00 AM T 0.5 T 0.5 T
2/22/2018 7:00 AM 0.00 M M M M
2/23/2018 7:00 AM T 0.2 T 0.2 T
3/1/2018 7:00 AM T T T T T Very few small snow flakes observed in the early night.
3/19/2018 7:00 AM 0.63 4.0 0.63 4.0 0.63 Rain turned to snow
3/27/2018 7:00 AM 0.55 4.7 0.55 4.7 0.55 Rain turned to snow
4/7/2018 7:00 AM 0.06 0.7 0.06 0.7 0.06
4/8/2018 7:00 AM 0.03 M M M M
4/9/2018 7:00 AM 0.13 M M M M
4/10/2018 7:00 AM 0.06 T 0.06 T 0.06 Snow melted shortly after falling.
4/11/2018 7:00 AM 0.00 M M M M
4/12/2018 7:00 AM 0.00 M M M M
4/13/2018 7:00 AM 0.20 0.5 0.20 0.5 0.20 Collector filled with slush
4/14/2018 7:00 AM 0.01 T 0.01 T 0.01
4/21/2018 7:00 AM 0.22 0.8 0.22 0.8 0.22 Currently light snow
4/22/2018 7:00 AM 0.28 T T T T rain and snow, melted immediately {EDIT: Observer reported T for new/total snow both with a melted core value of 0.28. Melted core is high and appears to be a typo. Changed SWE reports of 0.28 to NA until observer can be contacted to verify. Submission Time Before EDIT: 4/22/2018 12:02 PM CoCoSTAFF DNT} Changed these values to Trace and contacted observer 04/29/2018 CMG
4/24/2018 7:00 AM 0.06 0.0 M 0.0 M Rain to snow, currently light snow. {EDIT: Observer reported 0.0 for new and total snow both with a melted core value of 0.06. Melted core appears to be a typo if there was no snow to measure. Changed SWE reports of 0.06 to NA until observer can be contacted to verify. Submission Time Before EDIT: 4/24/2018 7:21 AM CoCoSTAFF DNT}
5/3/2018 8:06 AM 0.70 M M M M Currently light rain
5/4/2018 7:00 AM 0.31 M M M M
5/12/2018 7:00 AM 0.04 M M M M
5/13/2018 7:00 AM T M M M M
5/14/2018 7:00 AM 0.10 M M M M
5/15/2018 7:00 AM 0.40 M M M M Heavy rain showers with small hail, <1/4 in. hail
5/16/2018 7:00 AM T M M M M
5/22/2018 7:00 AM T M M M M
5/23/2018 5:58 AM T M M M M
5/24/2018 7:00 AM 0.00 M M M M
5/29/2018 7:00 AM 0.12 M M M M
5/30/2018 7:00 AM 0.00 M M M M
5/31/2018 6:57 AM T M M M M
6/7/2018 7:00 AM 0.05 M M M M Thunderstorms
6/8/2018 7:00 AM 0.00 M M M M
6/9/2018 7:00 AM 0.00 M M M M
6/10/2018 7:00 AM 0.00 M M M M
6/11/2018 7:00 AM 0.00 M M M M
6/12/2018 7:00 AM 0.00 M M M M
6/13/2018 7:00 AM 0.00 M M M M
6/14/2018 7:00 AM 0.00 M M M M
6/15/2018 7:00 AM T M M M M Associated with strong downdraft over a 5-10 min period
6/16/2018 7:00 AM 0.06 M M M M A 5-10 min downdraft activity.
6/17/2018 7:00 AM 0.00 M M M M
6/18/2018 8:30 AM 0.75 M M M M Light mist at time of observation.
6/20/2018 5:44 AM 0.35 M M M M 5 min downdraft
6/22/2018 7:00 AM T M M M M
6/25/2018 7:00 AM 0.45 M M M M With .25" hail
6/26/2018 7:00 AM 0.00 M M M M
7/1/2018 7:00 AM T M M M M
7/3/2018 7:00 AM 0.02 M M M M Strong winds, lightning and thunder
7/5/2018 7:00 AM T M M M M Lightning distant south, limited thunder
7/6/2018 7:00 AM 0.12 M M M M Strong winds, thunder
7/9/2018 7:00 AM 0.15 M M M M
7/10/2018 7:00 AM 0.00 M M M M
7/16/2018 7:00 AM 0.90 M M M M
7/23/2018 7:00 AM 0.07 M M M M
7/24/2018 7:00 AM 1.02 M M M M Very strong winds and <.25 mi vis.
7/25/2018 7:00 AM 0.09 M M M M
7/26/2018 7:00 AM 0.03 M M M M
7/27/2018 7:00 AM 0.00 M M M M
7/28/2018 7:00 AM T M M M M
7/29/2018 7:00 AM 0.00 M M M M
7/30/2018 7:00 AM 0.00 M M M M
7/31/2018 7:00 AM 0.00 M M M M
8/1/2018 7:00 AM 0.00 M M M M
8/2/2018 7:00 AM 0.00 M M M M
8/3/2018 7:00 AM 0.00 M M M M
8/4/2018 7:00 AM 0.21 M M M M
8/5/2018 7:00 AM T M M M M
8/15/2018 7:00 AM 0.03 M M M M
8/19/2018 7:00 AM 0.50 M M M M
8/22/2018 7:00 AM 0.01 M M M M
9/1/2018 7:00 AM T M M M M
9/20/2018 7:00 AM 1.44 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
3/28/2018 4/01/2018 7:00 AM 5 0.18 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