Station Overview Station Location
Station Number OR-MT-100 Latitude 45.529384
Station Name Portland 7.7 E Longitude -122.497885
County Multnomah Elevation (ft) 301



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 3.61 4.91 23 4.91 23 0.00 0 0 13 3 0.0 0 0
Nov 17 6.85 7.83 27 5.20 18 2.63 9 2 16 0 0.0 0 0
Dec 17 6.94 2.36 31 1.07 17 1.29 14 2 4 0 0.0 0 0
Jan 18 6.22 7.49 24 4.68 16 2.81 8 4 14 0 0.0 0 0
Feb 18 4.91 1.65 12 1.40 8 0.25 4 1 7 1 9.9 3 1
March 18 4.76 1.08 11 0.54 2 0.54 9 2 2 0 0.0 0 0
April 18 3.62 3.72 9 0.00 0 3.72 9 1 0 0 0.0 0 0
May 18 2.83 0.00 5 0.00 1 0.00 4 1 0 1 0.0 0 0
June 18 2.24 2.48 30 2.48 11 0.00 19 5 8 2 0.0 0 0
July 18 0.76 0.05 2 0.05 1 0.00 1 1 1 0 0.0 0 0
Aug 18 0.76 0.12 16 0.12 8 0.00 8 1 2 4 0.0 0 0
Sept 18 1.65 1.02 29 0.95 22 0.07 7 3 9 3 0.0 0 0
Water Year Totals: 45.15" 32.71" 219 days 21.40" 127 11.31" 92 days 23 76 days 14 days 9.9" 3 days 1 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
10/2/2017
10/3/2017
10/4/2017
10/5/2017
10/6/2017
10/7/2017 0.04
10/8/2017 0.12
10/9/2017 T
10/10/2017
10/11/2017 0.08
10/12/2017 0.42
10/13/2017 0.48
10/14/2017 0.01
10/15/2017 T
10/16/2017 0.00
10/17/2017 0.00
10/18/2017 0.03
10/19/2017 0.27
10/20/2017 0.93
10/21/2017 0.49
10/22/2017 2.01
10/23/2017 0.02
10/24/2017 0.00
10/25/2017
10/26/2017 T
10/27/2017 0.00
10/28/2017 0.00
10/29/2017 0.01
10/30/2017 0.00
10/31/2017 0.00
11/1/2017
11/2/2017 0.02
11/3/2017 0.18
11/4/2017 0.13
11/5/2017 0.37
11/6/2017 0.05
11/7/2017 0.00
11/8/2017 0.00
11/9/2017 0.35
11/10/2017 0.68
11/11/2017 0.23
11/12/2017 0.14
11/13/2017 0.45
11/14/2017 0.20
11/15/2017 0.17
11/16/2017 0.94
11/17/2017 0.28
11/18/2017
11/19/2017
11/20/2017 1.00
11/21/2017 **
11/22/2017 **
11/23/2017 1.34
11/24/2017 **
11/25/2017 **
11/26/2017 **
11/27/2017 **
11/28/2017 **
11/29/2017 1.29
11/30/2017 0.01
12/1/2017 **
12/2/2017 0.38
12/3/2017 0.30
12/4/2017 0.09
12/5/2017 0.00
12/6/2017 0.00
12/7/2017 0.00
12/8/2017 0.00
12/9/2017 0.00
12/10/2017 0.00
12/11/2017 0.00
12/12/2017 0.00
12/13/2017 0.00
12/14/2017 0.00
12/15/2017 0.00
12/16/2017 0.05
12/17/2017 **
12/18/2017 **
12/19/2017 **
12/20/2017 0.91
12/21/2017 0.00
12/22/2017 0.00
12/23/2017 0.63
12/24/2017 **
12/25/2017 **
12/26/2017 **
12/27/2017 **
12/28/2017 **
12/29/2017 **
12/30/2017 **
12/31/2017 **
Day of YearDaily PrcpMultiday Prcp
1/1/2018 1.26
1/2/2018
1/3/2018
1/4/2018 0.00
1/5/2018 **
1/6/2018 0.44
1/7/2018 0.08
1/8/2018 0.11
1/9/2018 0.59
1/10/2018 0.28
1/11/2018 0.48
1/12/2018 0.51
1/13/2018 0.02
1/14/2018 0.00
1/15/2018
1/16/2018 0.23
1/17/2018 0.03
1/18/2018 0.65
1/19/2018 0.21
1/20/2018 **
1/21/2018 **
1/22/2018 0.41
1/23/2018 0.20
1/24/2018 0.95
1/25/2018 0.34
1/26/2018 **
1/27/2018 0.70
1/28/2018
1/29/2018
1/30/2018
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
2/11/2018
2/12/2018
2/13/2018
2/14/2018
2/15/2018
2/16/2018
2/17/2018 **
2/18/2018 0.25
2/19/2018 0.56
2/20/2018 0.01
2/21/2018 0.26
2/22/2018 0.12
2/23/2018 T
2/24/2018 0.16
2/25/2018 0.02
2/26/2018 0.27
2/27/2018 **
2/28/2018 **
3/1/2018 0.49
3/2/2018 **
3/3/2018 0.05
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
3/20/2018
3/21/2018
3/22/2018
3/23/2018
3/24/2018 0.32
3/25/2018 0.22
3/26/2018 **
3/27/2018 **
3/28/2018 **
3/29/2018 **
3/30/2018 **
3/31/2018 **
Day of YearDaily PrcpMultiday Prcp
4/1/2018 **
4/2/2018 **
4/3/2018 **
4/4/2018 **
4/5/2018 **
4/6/2018 **
4/7/2018 **
4/8/2018 **
4/9/2018 3.72
4/10/2018
4/11/2018
4/12/2018
4/13/2018
4/14/2018
4/15/2018
4/16/2018
4/17/2018
4/18/2018
4/19/2018
4/20/2018
4/21/2018
4/22/2018
4/23/2018
4/24/2018
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
5/4/2018
5/5/2018
5/6/2018
5/7/2018
5/8/2018
5/9/2018
5/10/2018
5/11/2018
5/12/2018
5/13/2018
5/14/2018
5/15/2018
5/16/2018
5/17/2018
5/18/2018
5/19/2018
5/20/2018
5/21/2018
5/22/2018
5/23/2018
5/24/2018
5/25/2018
5/26/2018
5/27/2018 T
5/28/2018 **
5/29/2018 **
5/30/2018 **
5/31/2018 0.00
6/1/2018 0.12
6/2/2018 **
6/3/2018 **
6/4/2018 0.00
6/5/2018 **
6/6/2018 **
6/7/2018 **
6/8/2018 0.00
6/9/2018 0.33
6/10/2018 0.97
6/11/2018 0.30
6/12/2018 **
6/13/2018 0.00
6/14/2018 T
6/15/2018 **
6/16/2018 0.00
6/17/2018 0.05
6/18/2018 0.69
6/19/2018 0.00
6/20/2018 **
6/21/2018 0.00
6/22/2018 T
6/23/2018 0.01
6/24/2018 0.01
6/25/2018 **
6/26/2018 **
6/27/2018 **
6/28/2018 **
6/29/2018 **
6/30/2018 **
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.00
7/2/2018 0.05
7/3/2018
7/4/2018
7/5/2018
7/6/2018
7/7/2018
7/8/2018
7/9/2018
7/10/2018
7/11/2018
7/12/2018
7/13/2018
7/14/2018
7/15/2018
7/16/2018
7/17/2018
7/18/2018
7/19/2018
7/20/2018
7/21/2018
7/22/2018
7/23/2018
7/24/2018
7/25/2018
7/26/2018
7/27/2018
7/28/2018
7/29/2018
7/30/2018
7/31/2018
8/1/2018
8/2/2018
8/3/2018
8/4/2018
8/5/2018
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 **
8/16/2018 **
8/17/2018 **
8/18/2018 **
8/19/2018 **
8/20/2018 **
8/21/2018 **
8/22/2018 0.00
8/23/2018 0.00
8/24/2018 T
8/25/2018 0.00
8/26/2018 0.03
8/27/2018 0.09
8/28/2018 T
8/29/2018 T
8/30/2018
8/31/2018 T
9/1/2018 0.02
9/2/2018 0.00
9/3/2018 0.00
9/4/2018 T
9/5/2018 0.00
9/6/2018 0.00
9/7/2018 0.00
9/8/2018 0.01
9/9/2018 0.00
9/10/2018 0.01
9/11/2018 T
9/12/2018 0.33
9/13/2018 0.34
9/14/2018 T
9/15/2018 **
9/16/2018 0.07
9/17/2018 0.02
9/18/2018 0.00
9/19/2018 0.00
9/20/2018 **
9/21/2018 0.00
9/22/2018 0.12
9/23/2018 0.08
9/24/2018 **
9/25/2018 **
9/26/2018 0.00
9/27/2018 0.00
9/28/2018
9/29/2018 0.00
9/30/2018 0.02



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/7/2017 7:45 AM 0.04 M M M M
10/8/2017 7:00 AM 0.12 M M M M
10/9/2017 7:00 AM T M M M M
10/11/2017 7:40 AM 0.08 M M M M
10/12/2017 7:00 AM 0.42 M M M M
10/13/2017 7:00 AM 0.48 M M M M
10/14/2017 7:00 AM 0.01 M M M M
10/15/2017 7:00 AM T M M M M
10/16/2017 7:00 AM 0.00 0.0 M M M
10/17/2017 7:00 AM 0.00 0.0 M M M
10/18/2017 7:00 AM 0.03 M M M M
10/19/2017 7:00 AM 0.27 M M M M
10/20/2017 7:00 AM 0.93 M M M M Rain was steady all day
10/21/2017 7:00 AM 0.49 M M M M
10/22/2017 7:00 AM 2.01 M M M M Rain was a steady down pour all day and night, never stopping
10/23/2017 7:00 AM 0.02 M M M M
10/24/2017 7:00 AM 0.00 0.0 M M M
10/26/2017 7:00 AM T M M M M
10/27/2017 7:00 AM 0.00 0.0 M M M
10/28/2017 7:00 AM 0.00 0.0 M M M
10/29/2017 7:30 AM 0.01 M M M M lightly sprinkling with fog
10/30/2017 7:00 AM 0.00 0.0 M M M
10/31/2017 7:00 AM 0.00 0.0 M M M
11/2/2017 7:00 AM 0.02 M M M M
11/3/2017 7:30 AM 0.18 M M M M
11/4/2017 7:00 AM 0.13 M M M M
11/5/2017 7:00 AM 0.37 M M M M
11/6/2017 7:00 AM 0.05 M M M M
11/7/2017 7:00 AM 0.00 0.0 M M M
11/8/2017 7:00 AM 0.00 0.0 M M M
11/9/2017 7:00 AM 0.35 M M M M
11/10/2017 7:00 AM 0.68 M M M M
11/11/2017 8:00 AM 0.23 M M M M
11/12/2017 7:50 AM 0.14 M M M M
11/13/2017 7:00 AM 0.45 M M M M
11/14/2017 7:00 AM 0.20 M M M M
11/15/2017 7:30 AM 0.17 M M M M
11/16/2017 7:00 AM 0.94 M M M M
11/17/2017 7:00 AM 0.28 M M M M
11/20/2017 7:00 AM 1.00 M M M M lots of rain and strong winds that started in the night
11/30/2017 7:00 AM 0.01 M M M M
12/3/2017 7:40 AM 0.30 M M M M
12/4/2017 7:30 AM 0.09 M M M M
12/5/2017 7:00 AM 0.00 0.0 M M M
12/6/2017 7:00 AM 0.00 0.0 M M M
12/7/2017 7:00 AM 0.00 0.0 M M M
12/8/2017 7:00 AM 0.00 0.0 M M M
12/9/2017 7:00 AM 0.00 0.0 M M M
12/10/2017 7:00 AM 0.00 0.0 M M M
12/11/2017 7:00 AM 0.00 0.0 M M M
12/12/2017 7:00 AM 0.00 0.0 M M M
12/13/2017 7:00 AM 0.00 0.0 M M M
12/14/2017 7:00 AM 0.00 0.0 M M M
12/15/2017 7:00 AM 0.00 0.0 M M M
12/16/2017 8:30 AM 0.05 M M M M
12/21/2017 7:00 AM 0.00 0.0 M M M
12/22/2017 7:00 AM 0.00 0.0 M M M
12/23/2017 8:00 AM 0.63 T M T M Freezing rain and a little bit of snow we got in the night. The rain measurement may not be accurate because the hole, in the funnel, was frozen solid, not letting any moisture pass.
1/4/2018 7:00 AM 0.00 0.0 M M M
1/7/2018 7:30 AM 0.08 M M M M
1/8/2018 7:00 AM 0.11 M M M M
1/9/2018 7:00 AM 0.59 M M M M
1/10/2018 7:00 AM 0.28 M M M M
1/11/2018 7:00 AM 0.48 M M M M
1/12/2018 7:00 AM 0.51 M M M M
1/13/2018 7:00 AM 0.02 M M M M
1/14/2018 7:00 AM 0.00 0.0 M M M
1/16/2018 7:00 AM 0.23 M M M M
1/17/2018 7:00 AM 0.03 M M M M
1/18/2018 7:00 AM 0.65 M M M M
1/19/2018 7:00 AM 0.21 M M M M
1/23/2018 7:00 AM 0.20 M M M M
1/24/2018 7:00 AM 0.95 M M M M
1/25/2018 7:00 AM 0.34 M M M M
2/19/2018 7:00 AM 0.56 3.7 0.56 3.7 0.56 Snow fell around 7 am in the morning for an hour then melted, then started again around 8 pm in the evening, but then stuck to the ground.
2/20/2018 7:00 AM 0.01 M M M M Below freezing, everything is ice
2/21/2018 7:00 AM 0.26 3.7 0.26 M M Snow started in the evening and lasted through the night. 27 degrees
2/22/2018 7:00 AM 0.12 2.5 0.12 M M Snow came in the night
2/23/2018 7:00 AM T M M M M
2/24/2018 7:00 AM 0.16 M M M M A little bit of snow and rain, never got below freezing
2/25/2018 7:00 AM 0.02 M M M M
2/26/2018 7:10 AM 0.27 M M M M
3/24/2018 7:00 AM 0.32 M M M M
3/25/2018 7:00 AM 0.22 M M M M
5/27/2018 6:41 AM T 0.0 M M M
6/1/2018 7:00 AM 0.12 M M M M
6/9/2018 7:20 AM 0.33 M M M M
6/10/2018 7:00 AM 0.97 M M M M
6/11/2018 7:00 AM 0.30 M M M M fog in morning
6/14/2018 7:00 AM T M M M M
6/17/2018 7:00 AM 0.05 M M M M
6/18/2018 7:00 AM 0.69 M M M M
6/19/2018 7:00 AM 0.00 0.0 M M M
6/22/2018 7:00 AM T M M M M
6/23/2018 7:30 AM 0.01 M M M M
6/24/2018 7:00 AM 0.01 M M M M
7/2/2018 7:00 AM 0.05 M M M M
8/23/2018 7:00 AM 0.00 0.0 M M M
8/24/2018 7:00 AM T M M M M
8/25/2018 7:00 AM 0.00 0.0 M M M
8/26/2018 8:00 AM 0.03 M M M M
8/27/2018 7:00 AM 0.09 M M M M
8/28/2018 7:00 AM T M M M M
8/29/2018 7:00 AM T M M M M
8/31/2018 7:00 AM T M M M M
9/1/2018 7:00 AM 0.02 M M M M
9/2/2018 7:00 AM 0.00 M M M M
9/3/2018 7:00 AM 0.00 M M M M
9/4/2018 7:00 AM T M M M M
9/5/2018 7:00 AM 0.00 M M M M
9/6/2018 7:00 AM 0.00 M M M M
9/7/2018 7:00 AM 0.00 0.0 M M M
9/8/2018 7:20 AM 0.01 M M M M
9/9/2018 7:00 AM 0.00 M M M M
9/10/2018 7:00 AM 0.01 M M M M
9/11/2018 7:00 AM T M M M M
9/12/2018 7:00 AM 0.33 M M M M
9/13/2018 7:00 AM 0.34 M M M M
9/14/2018 7:00 AM T M M M M
9/17/2018 7:00 AM 0.02 M M M M
9/18/2018 7:00 AM 0.00 M M M M
9/19/2018 7:00 AM 0.00 M M M M
9/22/2018 7:20 AM 0.12 M M M M
9/23/2018 7:00 AM 0.08 M M M M
9/27/2018 7:00 AM 0.00 M M M M
9/29/2018 7:00 AM 0.00 M M M M
9/30/2018 7:00 AM 0.02 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/21/2017 11/23/2017 7:00 AM 3 1.34 M M Most of the rain came around 4 o'clock in the morning on the 23rd. It down poured and there was wind
11/24/2017 11/29/2017 7:00 AM 6 1.29 M M
12/1/2017 12/02/2017 7:00 AM 2 0.38 M M
12/17/2017 12/20/2017 8:40 AM 4 0.91 M M
12/24/2017 1/01/2018 7:00 AM 9 1.26 M M This precipitation includes the liquid form of the following: - approximate 3 inches of snow, accumulated from 12/24 - 12/26 - approximate 1/4 inch of ice - precipitation on 12/28
1/5/2018 1/06/2018 8:00 AM 2 0.44 M M
1/20/2018 1/22/2018 7:00 AM 3 0.41 M M
1/26/2018 1/27/2018 7:00 AM 2 0.70 M M
2/17/2018 2/18/2018 7:00 AM 2 0.25 M T
2/27/2018 3/01/2018 7:00 AM 3 0.49 M M
3/2/2018 3/03/2018 7:00 AM 2 0.05 M M
3/26/2018 4/09/2018 7:05 AM 15 3.72 M M
5/28/2018 5/31/2018 7:00 AM 4 0.00 M M
6/2/2018 6/04/2018 7:00 AM 3 0.00 M M
6/5/2018 6/08/2018 7:00 AM 4 0.00 M M
6/12/2018 6/13/2018 7:00 AM 2 0.00 0.0 0.00
6/15/2018 6/16/2018 7:00 AM 2 0.00 M M
6/20/2018 6/21/2018 7:00 AM 2 0.00 M M
6/25/2018 7/01/2018 7:00 AM 7 0.00 M M
8/15/2018 8/22/2018 7:00 AM 8 0.00 M M
9/15/2018 9/16/2018 7:00 AM 2 0.07 M M
9/20/2018 9/21/2018 7:00 AM 2 0.00 M M
9/24/2018 9/26/2018 7:00 AM 3 0.00 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
6/9/2018 10:43 AM Rice Rice Rice Hard|White Ice 5 1min no damage False Same time as rain Same time as smaller hail vertical