Corvallis climate

Corvallis Weather in August

NOAA 1991-2020 normals for Western Ag Rsch Ctr, 2.7 km from Corvallis

Average highs run from 88°F on August 1 to 79°F on August 31, and lows from 51°F to 45°F. Normal precipitation for the month is 0.84 in over about 6 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 Corvallis, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
84°F
Average low
48°F
Precipitation
0.84 in
Record high
103°FAug 24, 1969
Record low
19°FAug 18, 1895
Chance of a freeze
5%
Days of 90°F or more
8.4
Daylight
14 h 49 min to 13 h 21 min
Cloud cover
44%
Humidity
51%
Dew point
41°F
Wind
4.0 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 188°F51°F101°F 190039°F 198719%0%
Aug 288°F51°F99°F 196636°F 198719%0%
Aug 388°F50°F101°F 196138°F 198819%0%
Aug 488°F50°F101°F 196140°F 195619%0%
Aug 587°F50°F101°F 196137°F 198019%0%
Aug 687°F50°F100°F 190138°F 190919%0%
Aug 787°F50°F98°F 195836°F 198819%0%
Aug 887°F50°F100°F 193039°F 194619%0%
Aug 986°F50°F100°F 193539°F 191419%0%
Aug 1086°F49°F101°F 200340°F 191720%0%
Aug 1186°F49°F99°F 199638°F 190120%0%
Aug 1286°F49°F101°F 194035°F 189920%0%
Aug 1385°F49°F99°F 193536°F 190020%0%
Aug 1485°F49°F101°F 192938°F 192820%0%
Aug 1585°F48°F100°F 192936°F 197420%0%
Aug 1684°F48°F98°F 193129°F 189520%0%
Aug 1784°F48°F99°F 193124°F 189520%0%
Aug 1884°F48°F96°F 193119°F 189520%0%
Aug 1983°F48°F99°F 200819°F 189521%0%
Aug 2083°F47°F96°F 194228°F 189521%0%
Aug 2183°F47°F98°F 196930°F 189521%0%
Aug 2282°F47°F98°F 193522°F 189521%0%
Aug 2382°F47°F102°F 193528°F 189521%0%
Aug 2482°F46°F103°F 196928°F 189522%0%
Aug 2581°F46°F97°F 196926°F 189522%0%
Aug 2681°F46°F95°F 201022°F 189522%0%
Aug 2781°F46°F97°F 201024°F 189522%0%
Aug 2880°F46°F95°F 201119°F 189522%0%
Aug 2980°F45°F98°F 199821°F 189523%0%
Aug 3079°F45°F96°F 192127°F 189523%0%
Aug 3179°F45°F96°F 192927°F 189523%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Corvallis, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:18 AM, sunset 9:07 PM
August 31
sunrise 6:56 AM, sunset 8:17 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00248783 (Western Ag Rsch Ctr), public domain. Records: NOAA GHCN-Daily, station USC00243885, 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.