North Plains climate

North Plains Weather in August

NOAA 1991-2020 normals for Portland-Hillsboro AP, 7.2 km from North Plains

Average highs run from 84°F on August 1 to 80°F on August 31, and lows from 53°F to 50°F. Normal precipitation for the month is 0.48 in over about 4 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at North Plains, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
82°F
Average low
52°F
Precipitation
0.48 in
Record high
107°FAug 14, 2023
Record low
38°FAug 31, 2008
Chance of a freeze
0%
Days of 90°F or more
6.1
Daylight
14 h 44 min to 13 h 19 min
Cloud cover
44%
Humidity
75%
Dew point
54°F
Wind
4.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 184°F53°F100°F 201544°F 20028%0%
Aug 284°F53°F105°F 201742°F 20028%0%
Aug 384°F53°F105°F 201741°F 20088%0%
Aug 484°F53°F100°F 201246°F 20069%0%
Aug 584°F53°F98°F 200846°F 20029%0%
Aug 684°F53°F95°F 202644°F 20029%0%
Aug 784°F53°F99°F 202242°F 20029%0%
Aug 884°F53°F96°F 202444°F 20029%0%
Aug 983°F53°F99°F 200446°F 201010%0%
Aug 1083°F53°F100°F 202545°F 201110%0%
Aug 1183°F52°F103°F 202144°F 202010%0%
Aug 1283°F52°F103°F 202143°F 200010%0%
Aug 1383°F52°F101°F 200243°F 200011%0%
Aug 1483°F52°F107°F 202343°F 200011%0%
Aug 1583°F52°F103°F 200843°F 200011%0%
Aug 1683°F52°F103°F 202342°F 200012%0%
Aug 1782°F52°F101°F 202242°F 200012%0%
Aug 1882°F52°F102°F 201643°F 200212%0%
Aug 1982°F52°F100°F 201643°F 200113%0%
Aug 2082°F52°F101°F 201640°F 200013%0%
Aug 2182°F51°F94°F 201744°F 200014%0%
Aug 2282°F51°F99°F 202544°F 200214%0%
Aug 2382°F51°F101°F 202540°F 202115%0%
Aug 2481°F51°F97°F 202542°F 200915%0%
Aug 2581°F51°F96°F 201042°F 201816%0%
Aug 2681°F51°F96°F 200641°F 200916%0%
Aug 2781°F51°F97°F 200640°F 200017%0%
Aug 2881°F51°F99°F 201740°F 200017%0%
Aug 2981°F50°F95°F 200741°F 201018%0%
Aug 3081°F50°F98°F 202241°F 200818%0%
Aug 3180°F50°F100°F 199838°F 200819%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at North Plains, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:56 AM, sunset 8:40 PM
August 31
sunrise 6:32 AM, sunset 7:51 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094261 (Portland-Hillsboro AP), public domain. Records: NOAA GHCN-Daily, station USW00094261, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.