Station Overview Station Location
Station Number OR-UM-18 Latitude 45.88685
Station Name Hermiston 5.8 NE Longitude -119.19229
County Umatilla Elevation (ft) 461



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 0.69 2.56 27 2.01 23 0.55 4 2 15 2 0.0 0 0
Nov 16 1.14 0.65 30 0.65 30 0.00 0 0 9 1 0.0 0 0
Dec 16 1.12 1.03 13 1.03 13 0.00 0 0 5 0 4.2 4 6
Jan 17 1.18 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 17 0.83 0.25 2 0.25 2 0.00 0 0 2 0 0.0 0 0
March 17 0.87 1.38 24 0.35 10 1.03 14 2 6 0 0.0 0 0
April 17 0.80 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 17 0.79 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 17 0.60 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 17 0.18 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 17 0.21 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 17 0.30 0.50 13 0.50 13 0.00 0 0 4 1 0.0 0 0
Water Year Totals: 8.71" 6.37" 109 days 4.79" 91 1.58" 18 days 4 41 days 4 days 4.2" 4 days 6 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 T
10/2/2016 0.00
10/3/2016 0.00
10/4/2016 0.03
10/5/2016 0.00
10/6/2016 0.01
10/7/2016 0.07
10/8/2016 0.00
10/9/2016 0.06
10/10/2016 0.19
10/11/2016
10/12/2016
10/13/2016 0.04
10/14/2016 0.30
10/15/2016 **
10/16/2016 0.29
10/17/2016 0.06
10/18/2016
10/19/2016
10/20/2016 T
10/21/2016 0.21
10/22/2016 0.20
10/23/2016 0.00
10/24/2016 0.00
10/25/2016 0.03
10/26/2016 0.13
10/27/2016 0.02
10/28/2016 0.05
10/29/2016 **
10/30/2016 0.26
10/31/2016 0.61
11/1/2016 0.02
11/2/2016 0.00
11/3/2016 0.00
11/4/2016 0.00
11/5/2016 0.00
11/6/2016 0.09
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 T
11/14/2016 0.07
11/15/2016 0.11
11/16/2016 0.00
11/17/2016 0.00
11/18/2016 0.00
11/19/2016 0.07
11/20/2016 0.00
11/21/2016 0.00
11/22/2016 0.00
11/23/2016 0.19
11/24/2016 0.00
11/25/2016 0.00
11/26/2016 0.02
11/27/2016 0.00
11/28/2016 0.03
11/29/2016 0.00
11/30/2016 0.05
12/1/2016 0.00
12/2/2016 0.00
12/3/2016 0.00
12/4/2016 0.00
12/5/2016 0.00
12/6/2016 0.07
12/7/2016 0.01
12/8/2016 0.00
12/9/2016 0.22
12/10/2016 0.09
12/11/2016 0.00
12/12/2016
12/13/2016
12/14/2016
12/15/2016 0.64
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 0.00
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
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
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
2/21/2017
2/22/2017
2/23/2017
2/24/2017
2/25/2017
2/26/2017 0.01
2/27/2017 0.24
2/28/2017
3/1/2017 0.00
3/2/2017 0.00
3/3/2017 0.00
3/4/2017 0.08
3/5/2017 0.07
3/6/2017 0.01
3/7/2017 0.00
3/8/2017 0.04
3/9/2017 0.06
3/10/2017 0.09
3/11/2017 **
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 0.58
3/23/2017 **
3/24/2017 0.45
3/25/2017
3/26/2017
3/27/2017
3/28/2017
3/29/2017
3/30/2017
3/31/2017
Day of YearDaily PrcpMultiday Prcp
4/1/2017
4/2/2017
4/3/2017
4/4/2017
4/5/2017
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
4/22/2017
4/23/2017
4/24/2017
4/25/2017
4/26/2017
4/27/2017
4/28/2017
4/29/2017
4/30/2017
5/1/2017
5/2/2017
5/3/2017
5/4/2017
5/5/2017
5/6/2017
5/7/2017
5/8/2017
5/9/2017
5/10/2017
5/11/2017
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
5/27/2017
5/28/2017
5/29/2017
5/30/2017
5/31/2017
6/1/2017
6/2/2017
6/3/2017
6/4/2017
6/5/2017
6/6/2017
6/7/2017
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
6/24/2017
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017
6/30/2017
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
7/23/2017
7/24/2017
7/25/2017
7/26/2017
7/27/2017
7/28/2017
7/29/2017
7/30/2017
7/31/2017
8/1/2017
8/2/2017
8/3/2017
8/4/2017
8/5/2017
8/6/2017
8/7/2017
8/8/2017
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 0.16
9/19/2017 0.04
9/20/2017 0.22
9/21/2017 0.08
9/22/2017 0.00
9/23/2017 0.00
9/24/2017 0.00
9/25/2017 0.00
9/26/2017 0.00
9/27/2017 0.00
9/28/2017 0.00
9/29/2017 0.00
9/30/2017 T



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 8:30 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/2/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/3/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/4/2016 8:30 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/5/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/6/2016 8:29 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/7/2016 8:30 AM 0.07 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/8/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/9/2016 9:53 AM 0.06 M M M M Raining at ob time
10/10/2016 8:30 AM 0.19 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/13/2016 7:42 AM 0.04 M M M M Light rain at ob time.
10/14/2016 8:30 AM 0.30 M M M M
10/17/2016 8:30 AM 0.06 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/20/2016 8:27 AM T M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/21/2016 8:30 AM 0.21 M M M M raining at ob time
10/22/2016 8:30 AM 0.20 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/23/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/24/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/25/2016 8:30 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/26/2016 7:49 AM 0.13 M M M M raining light at ob time
10/27/2016 8:30 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/28/2016 8:30 AM 0.05 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
10/31/2016 8:30 AM 0.61 M M M M Thunderstorm yesterday evening.
11/1/2016 8:30 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/2/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/3/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/4/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/5/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/6/2016 8:30 AM 0.09 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/7/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/8/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/9/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/10/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 1.1.14
11/11/2016 8:30 AM 0.00 0.0 M M M
11/12/2016 8:30 AM 0.00 0.0 M M M
11/13/2016 8:30 AM T M M M M
11/14/2016 8:30 AM 0.07 M M M M
11/15/2016 8:30 AM 0.11 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.1 (build 2003)
11/16/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.1 (build 2003)
11/17/2016 8:26 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.1 (build 2003)
11/18/2016 8:30 AM 0.00 0.0 M M M
11/19/2016 8:30 AM 0.07 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.3 (build 2005)
11/20/2016 8:30 AM 0.00 0.0 M M M
11/21/2016 8:30 AM 0.00 0.0 M M M
11/22/2016 8:30 AM 0.00 0.0 M M M
11/23/2016 8:30 AM 0.19 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
11/24/2016 8:30 AM 0.00 0.0 M M M
11/25/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
11/26/2016 8:30 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
11/27/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
11/28/2016 8:30 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
11/29/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
11/30/2016 8:30 AM 0.05 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/1/2016 8:30 AM 0.00 0.0 M M M
12/2/2016 8:30 AM 0.00 0.0 M M M
12/3/2016 8:30 AM 0.00 0.0 M M M
12/4/2016 8:30 AM 0.00 0.0 M M M
12/5/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/6/2016 8:30 AM 0.07 0.3 M 0.5 M
12/7/2016 8:30 AM 0.01 0.1 M 0.5 M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/8/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/9/2016 8:30 AM 0.22 2.8 M 3.0 M Snowing at ob time
12/10/2016 8:30 AM 0.09 1.0 M 3.0 M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/11/2016 8:30 AM 0.00 0.0 M 3.0 M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/15/2016 8:30 AM 0.64 M M 6.0 M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
12/28/2016 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.4 (build 2006)
2/26/2017 9:00 AM 0.01 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
2/27/2017 8:30 AM 0.24 T M T M Rain with some snow overnight
3/1/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/2/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/3/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/4/2017 8:30 AM 0.08 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
3/5/2017 8:30 AM 0.07 M M M M
3/6/2017 8:30 AM 0.01 M M M M
3/7/2017 8:30 AM 0.00 0.0 M M M
3/8/2017 8:30 AM 0.04 M M M M
3/9/2017 8:30 AM 0.06 M M M M
3/10/2017 8:30 AM 0.09 M M M M Submitted via CoCoRaHS Observer for Android version 2.0.8 (build 20010)
9/18/2017 8:30 AM 0.16 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/19/2017 8:30 AM 0.04 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/20/2017 8:30 AM 0.22 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/21/2017 8:30 AM 0.08 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/22/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/23/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/24/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/25/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/26/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/27/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/28/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/29/2017 8:30 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
9/30/2017 8:30 AM T M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/15/2016 10/16/2016 8:30 AM 2 0.29 M M
10/29/2016 10/30/2016 8:30 AM 2 0.26 M M
3/11/2017 3/22/2017 8:30 AM 12 0.58 M M
3/23/2017 3/24/2017 8:30 AM 2 0.45 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