Station Overview Station Location
Station Number OR-WS-29 Latitude 45.455
Station Name Hillsboro 5.0 S Longitude -122.938
County Washington Elevation (ft) 171



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 09 3.01 3.29 31 3.16 30 0.13 1 1 20 1 0.0 0 0
Nov 09 6.24 7.25 31 5.89 25 1.36 6 2 16 2 0.0 0 0
Dec 09 6.68 3.23 29 3.23 29 0.00 0 0 12 1 4.7 1 1
Jan 10 5.81 7.52 31 7.52 31 0.00 0 0 28 0 0.0 0 0
Feb 10 4.58 4.03 28 4.03 28 0.00 0 0 17 3 0.0 0 0
March 10 3.96 0.00 1 0.00 1 0.00 0 0 0 0 0.0 0 0
April 10 2.78 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 10 2.09 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 10 1.58 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 10 0.54 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 10 0.58 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 1.19 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 39.04" 25.32" 151 days 23.83" 144 1.49" 7 days 3 93 days 7 days 4.7" 1 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
10/1/2009 0.13
10/2/2009 0.01
10/3/2009 0.01
10/4/2009 0.10
10/5/2009 0.00
10/6/2009 0.00
10/7/2009 0.00
10/8/2009 0.00
10/9/2009 0.00
10/10/2009 0.00
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.06
10/14/2009 0.67
10/15/2009 0.12
10/16/2009 T
10/17/2009 0.05
10/18/2009 0.27
10/19/2009 0.03
10/20/2009 0.00
10/21/2009 0.24
10/22/2009 0.03
10/23/2009 0.11
10/24/2009 0.31
10/25/2009 0.01
10/26/2009 0.10
10/27/2009 0.41
10/28/2009 0.11
10/29/2009 0.36
10/30/2009 0.03
10/31/2009 0.13
11/1/2009
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 T
11/6/2009 0.70
11/7/2009 0.36
11/8/2009 1.45
11/9/2009 0.04
11/10/2009 0.36
11/11/2009 **
11/12/2009 **
11/13/2009 **
11/14/2009 0.68
11/15/2009 0.04
11/16/2009 0.05
11/17/2009 0.43
11/18/2009 0.12
11/19/2009 0.31
11/20/2009 0.20
11/21/2009 0.10
11/22/2009 0.81
11/23/2009 0.05
11/24/2009 T
11/25/2009 0.00
11/26/2009 0.05
11/27/2009 0.82
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.00
12/2/2009 0.00
12/3/2009 0.00
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 0.00
12/7/2009 0.00
12/8/2009 0.00
12/9/2009 0.00
12/10/2009
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.03
12/14/2009 0.02
12/15/2009 1.02
12/16/2009 0.75
12/17/2009
12/18/2009 0.07
12/19/2009 0.02
12/20/2009 0.05
12/21/2009 0.28
12/22/2009 0.10
12/23/2009 T
12/24/2009 0.00
12/25/2009 0.00
12/26/2009 0.00
12/27/2009 0.00
12/28/2009 0.03
12/29/2009 0.00
12/30/2009 0.60
12/31/2009 0.26
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.93
1/2/2010 0.29
1/3/2010 0.00
1/4/2010 0.11
1/5/2010 0.29
1/6/2010 0.94
1/7/2010 0.02
1/8/2010 0.33
1/9/2010 0.62
1/10/2010 0.01
1/11/2010 0.08
1/12/2010 0.36
1/13/2010 0.36
1/14/2010 0.07
1/15/2010 0.02
1/16/2010 1.00
1/17/2010 0.07
1/18/2010 0.42
1/19/2010 0.02
1/20/2010 0.04
1/21/2010 0.07
1/22/2010 0.14
1/23/2010 0.14
1/24/2010 0.08
1/25/2010 0.97
1/26/2010 0.01
1/27/2010 0.01
1/28/2010 0.00
1/29/2010 0.00
1/30/2010 0.02
1/31/2010 0.10
2/1/2010 0.07
2/2/2010 0.27
2/3/2010 0.18
2/4/2010 0.14
2/5/2010 0.15
2/6/2010 T
2/7/2010 0.07
2/8/2010 T
2/9/2010 0.00
2/10/2010 0.00
2/11/2010 0.16
2/12/2010 0.50
2/13/2010 0.24
2/14/2010 0.25
2/15/2010 0.02
2/16/2010 0.25
2/17/2010 0.02
2/18/2010 0.00
2/19/2010 0.00
2/20/2010 0.00
2/21/2010 0.00
2/22/2010 0.00
2/23/2010 T
2/24/2010 0.68
2/25/2010 0.06
2/26/2010 0.60
2/27/2010 0.37
2/28/2010 0.00
3/1/2010 0.00
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010
3/8/2010
3/9/2010
3/10/2010
3/11/2010
3/12/2010
3/13/2010
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010
3/24/2010
3/25/2010
3/26/2010
3/27/2010
3/28/2010
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010
4/7/2010
4/8/2010
4/9/2010
4/10/2010
4/11/2010
4/12/2010
4/13/2010
4/14/2010
4/15/2010
4/16/2010
4/17/2010
4/18/2010
4/19/2010
4/20/2010
4/21/2010
4/22/2010
4/23/2010
4/24/2010
4/25/2010
4/26/2010
4/27/2010
4/28/2010
4/29/2010
4/30/2010
5/1/2010
5/2/2010
5/3/2010
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010
5/10/2010
5/11/2010
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010
5/18/2010
5/19/2010
5/20/2010
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010
5/27/2010
5/28/2010
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010
6/5/2010
6/6/2010
6/7/2010
6/8/2010
6/9/2010
6/10/2010
6/11/2010
6/12/2010
6/13/2010
6/14/2010
6/15/2010
6/16/2010
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010
6/23/2010
6/24/2010
6/25/2010
6/26/2010
6/27/2010
6/28/2010
6/29/2010
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010
7/11/2010
7/12/2010
7/13/2010
7/14/2010
7/15/2010
7/16/2010
7/17/2010
7/18/2010
7/19/2010
7/20/2010
7/21/2010
7/22/2010
7/23/2010
7/24/2010
7/25/2010
7/26/2010
7/27/2010
7/28/2010
7/29/2010
7/30/2010
7/31/2010
8/1/2010
8/2/2010
8/3/2010
8/4/2010
8/5/2010
8/6/2010
8/7/2010
8/8/2010
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010
9/5/2010
9/6/2010
9/7/2010
9/8/2010
9/9/2010
9/10/2010
9/11/2010
9/12/2010
9/13/2010
9/14/2010
9/15/2010
9/16/2010
9/17/2010
9/18/2010
9/19/2010
9/20/2010
9/21/2010
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010
9/28/2010
9/29/2010
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2009 8:00 AM 0.01 M M M M
10/3/2009 8:00 AM 0.01 M M M M The feel of autumn in the air this a.m. Temps in the 30s
10/4/2009 8:00 AM 0.10 M M M M Rainfall moderate and steady. Trending to drier.
10/5/2009 8:00 AM 0.00 0.0 M M M Cooler temps in the mid 30s overnight. Drying trend.
10/6/2009 8:00 AM 0.00 0.0 M M M Near frost temps overnight.
10/7/2009 8:00 AM 0.00 0.0 M M M Overcast, milder and dry
10/8/2009 8:00 AM 0.00 0.0 M M M Mid 30s overnight.
10/9/2009 7:30 AM 0.00 0.0 M M M
10/10/2009 8:00 AM 0.00 0.0 M M M
10/11/2009 8:00 AM 0.00 0.0 M M M Temps from mid 30s to low 60s
10/12/2009 8:00 AM 0.00 0.0 M M M
10/13/2009 8:00 AM 0.06 M M M M Mild pacific storm conditions.
10/14/2009 8:00 AM 0.67 M M M M Balmy temps in the mid 50s
10/15/2009 8:00 AM 0.12 M M M M
10/16/2009 8:00 AM T M M M M Balmy evening and night.
10/17/2009 8:00 AM 0.05 M M M M Light rain overnight, with drier weather during the day. Temps mild
10/18/2009 8:00 AM 0.27 M M M M
10/19/2009 8:00 AM 0.03 M M M M Mild and humid with only a 5 degree temp range,
10/20/2009 8:00 AM 0.00 0.0 M M M
10/21/2009 8:00 AM 0.24 M M M M Rain tapering off for now.
10/22/2009 8:00 AM 0.03 M M M M
10/23/2009 7:45 AM 0.11 M M M M Raining at measurment time
10/24/2009 8:00 AM 0.31 M M M M Rain confined to a.m. hours for the most part. Afternoon showed improvement. Cooler than recent mornings.
10/25/2009 8:00 AM 0.01 M M M M Overcast with a few sun breaks. Temps in the mid to upper 50s.
10/26/2009 8:00 AM 0.10 M M M M Just beginning to rain hard at 8 am . Approx. .05 inches prior to that.
10/27/2009 8:00 AM 0.41 M M M M Heavy bands of showers passed through during a.m., with scattered showers through the day. Seem that this station was spared the heaviest rain.
10/28/2009 8:00 AM 0.11 M M M M Cooling into the upper 30s overnight
10/29/2009 9:30 AM 0.36 M M M M
10/30/2009 8:00 AM 0.03 M M M M
10/31/2009 8:00 AM 0.13 M M M M Less rain than antcipated last night
11/2/2009 8:00 AM 0.00 0.0 M M M
11/3/2009 8:00 AM 0.00 0.0 M M M Light frost this am
11/4/2009 7:30 AM 0.00 0.0 M M M Mid 30s overnight, east wind developing.
11/5/2009 8:00 AM T M M M M
11/6/2009 8:00 AM 0.70 M M M M Typical fall storm with tropical roots. Winds in the upper 20 mph gusts.
11/7/2009 8:00 AM 0.36 M M M M reasonably good day with showers and sunbreaks, More rain after sunset thsn during the day.
11/8/2009 8:00 AM 1.45 M M M M One of the more prolific storms of recent years. Came in waves of very active rainfall, mixed with some late am and early pm thunder.
11/9/2009 8:00 AM 0.04 M M M M
11/10/2009 7:30 AM 0.36 M M M M
11/15/2009 8:00 AM 0.04 M M M M Temps in low 30s overnight
11/16/2009 7:30 AM 0.05 M M M M Brisk southerly winds this am
11/17/2009 7:45 AM 0.43 M M M M Wind gusts to the low 30 mphs.
11/18/2009 8:00 AM 0.12 M M M M Several rain cells around this location that were intense, but did not develop here.
11/19/2009 8:00 AM 0.31 M M M M
11/20/2009 9:30 AM 0.20 M M M M
11/21/2009 8:00 AM 0.10 M M M M Much local rain seemed to skirt this location - could see it in the distance, and drove through some of it 5 miles north.
11/22/2009 8:00 AM 0.81 M M M M Very active overnight with winds in the 30mph range,gusting to low 40mph. Winds picking up at 1am and peaking for an hour or two. Power out for a few minutes.
11/23/2009 8:00 AM 0.05 M M M M
11/24/2009 8:00 AM T M M M M
11/25/2009 7:45 AM 0.00 0.0 M M M
11/26/2009 9:30 AM 0.05 M M M M
11/27/2009 9:30 AM 0.82 M M M M
11/28/2009 7:30 AM 0.00 0.0 M M M
11/29/2009 8:00 AM 0.00 0.0 M M M
11/30/2009 8:00 AM 0.00 0.0 M M M Temps in the high 30s to low 40s overnight. Light fog to mixed cloud/sun.
12/1/2009 7:30 AM 0.00 0.0 M M M
12/2/2009 8:00 AM 0.00 0.0 M M M Temps in the low 30s overnight. East wind chill factor in effect.
12/3/2009 8:00 AM 0.00 0.0 M M M
12/4/2009 8:00 AM 0.00 0.0 M M M
12/5/2009 8:00 AM 0.00 0.0 M M M Down to the low 20s overnight, Humidity very low.
12/6/2009 8:00 AM 0.00 0.0 M M M Wind chill in the teens and 20s.
12/7/2009 8:00 AM 0.00 0.0 M M M
12/8/2009 8:00 AM 0.00 0.0 M M M Teens overnight with below freezing highs. Humidity at record low levels
12/9/2009 8:00 AM 0.00 0.0 M M M Single digits overnight locally
12/11/2009 8:00 AM 0.00 0.0 M M M
12/12/2009 8:00 AM 0.00 0.0 M M M
12/13/2009 8:00 AM 0.03 M M M M
12/14/2009 8:00 AM 0.02 M M M M
12/15/2009 8:45 AM 1.02 M M M M Recording rain @ .10 per hour for several hours. Rained without stop for the entire time.
12/16/2009 8:45 AM 0.75 M M M M
12/18/2009 8:00 AM 0.07 M M M M
12/19/2009 8:00 AM 0.02 M M M M
12/20/2009 8:45 AM 0.05 M M M M
12/21/2009 8:00 AM 0.28 M M M M Rain beginning to pick up this morning.
12/22/2009 8:00 AM 0.10 M M M M
12/23/2009 8:00 AM T M M M M
12/24/2009 8:00 AM 0.00 0.0 M M M
12/25/2009 8:00 AM 0.00 0.0 M M M
12/26/2009 8:00 AM 0.00 0.0 M M M Much milder a.m, temps.
12/27/2009 8:00 AM 0.00 0.0 M M M
12/28/2009 9:00 AM 0.03 M M M M
12/29/2009 8:00 AM 0.00 0.0 M M M
12/30/2009 9:00 AM 0.60 4.7 0.60 2.0 M
12/31/2009 8:15 AM 0.26 M M 0.0 M
1/1/2010 8:00 AM 0.93 M M M M
1/2/2010 8:00 AM 0.29 M M M M Showers in a.m. dry in p.m. 3 degree diurnal temp range
1/3/2010 8:00 AM 0.00 0.0 M M M
1/4/2010 9:00 AM 0.11 M M M M
1/5/2010 8:00 AM 0.29 M M M M
1/6/2010 8:00 AM 0.94 M M M M Late afternoon and evening of steady, significant rain.
1/7/2010 8:00 AM 0.02 M M M M
1/8/2010 8:00 AM 0.33 M M M M
1/9/2010 9:00 AM 0.62 M M M M Daylight hours were wet, not much rain after 1:00 am
1/10/2010 8:00 AM 0.01 M M M M
1/11/2010 8:00 AM 0.08 M M M M
1/12/2010 8:00 AM 0.36 M M M M
1/13/2010 8:00 AM 0.36 M M M M
1/14/2010 8:00 AM 0.07 M M M M
1/15/2010 8:00 AM 0.02 M M M M
1/16/2010 8:00 AM 1.00 M M M M Raining @ a .10 per hour at points.
1/17/2010 8:00 AM 0.07 M M M M Pressure dropping - wind expected this p.m.
1/18/2010 8:00 AM 0.42 M M M M Wind to 40 mph overnight.
1/19/2010 8:00 AM 0.02 M M M M Pressure was very low-Columbus Day 1962 was around 28.60 and todays was close.
1/20/2010 8:00 AM 0.04 M M M M
1/21/2010 8:00 AM 0.07 M M M M
1/22/2010 9:30 AM 0.14 M M M M
1/23/2010 8:00 AM 0.14 M M M M
1/24/2010 8:00 AM 0.08 M M M M
1/25/2010 8:00 AM 0.97 M M M M
1/26/2010 8:00 AM 0.01 M M M M
1/27/2010 8:00 AM 0.01 M M M M
1/28/2010 8:00 AM 0.00 0.0 M M M
1/29/2010 8:00 AM 0.00 0.0 M M M
1/30/2010 8:00 AM 0.02 M M M M
1/31/2010 8:00 AM 0.10 M M M M
2/1/2010 8:00 AM 0.07 M M M M
2/2/2010 8:00 AM 0.27 M M M M
2/3/2010 8:00 AM 0.18 M M M M
2/4/2010 9:00 AM 0.14 M M M M
2/5/2010 8:00 AM 0.15 M M M M
2/6/2010 8:00 AM T M M M M
2/7/2010 8:00 AM 0.07 M M M M
2/8/2010 8:00 AM T M M M M
2/9/2010 8:00 AM 0.00 0.0 M M M
2/10/2010 8:00 AM 0.00 0.0 M M M
2/11/2010 8:00 AM 0.16 M M M M
2/12/2010 9:00 AM 0.50 M M M M
2/13/2010 8:00 AM 0.24 M M M M
2/14/2010 9:00 AM 0.25 M M M M
2/15/2010 8:00 AM 0.02 M M M M
2/16/2010 8:00 AM 0.25 M M M M
2/17/2010 8:00 AM 0.02 M M M M
2/18/2010 9:00 AM 0.00 0.0 M M M
2/19/2010 7:30 AM 0.00 0.0 M M M
2/20/2010 7:00 AM 0.00 0.0 M M M
2/21/2010 8:00 AM 0.00 0.0 M M M
2/22/2010 8:00 AM 0.00 0.0 M M M
2/23/2010 8:00 AM T M M M M
2/24/2010 8:00 AM 0.68 M M M M
2/25/2010 8:00 AM 0.06 M M M M
2/26/2010 8:00 AM 0.60 M M M M
2/27/2010 7:30 AM 0.37 M M M M
2/28/2010 8:00 AM 0.00 0.0 M M M
3/1/2010 8:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/30/2009 10/01/2009 12:00 AM 2 0.13 M M
11/11/2009 11/14/2009 8:00 AM 4 0.68 M M
11/13/2009 11/14/2009 8:00 AM 2 0.68 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