Corvallis climate

Corvallis Weather in May

NOAA 1991-2020 normals for Corvallis State Univ, 9.6 km from Corvallis

Average highs run from 65°F on May 1 to 71°F on May 31, and lows from 42°F to 47°F. Normal precipitation for the month is 2.31 in over about 13 wet days.

May 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.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
68°F
Average low
45°F
Precipitation
2.31 in
Record high
91°FMay 14, 2023
Record low
31°FMay 12, 2011
Chance of a freeze
22%
Daylight
14 h 15 min to 15 h 18 min
Cloud cover
67%
Humidity
85%
Dew point
47°F
Wind
5.1 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
May 165°F42°F84°F 201433°F 201148%0%
May 265°F42°F81°F 201632°F 201947%0%
May 365°F42°F86°F 202635°F 201947%0%
May 466°F42°F81°F 201733°F 202546%0%
May 566°F43°F83°F 201334°F 201246%0%
May 666°F43°F81°F 201933°F 201045%0%
May 766°F43°F82°F 201635°F 201445%0%
May 867°F43°F82°F 202033°F 202144%0%
May 967°F43°F84°F 201934°F 202244%0%
May 1067°F44°F83°F 201933°F 201243%0%
May 1167°F44°F82°F 201333°F 202243%0%
May 1268°F44°F81°F 202331°F 201143%0%
May 1368°F44°F89°F 202333°F 202242%0%
May 1468°F44°F91°F 202338°F 200742%0%
May 1568°F45°F84°F 202335°F 201742%0%
May 1668°F45°F91°F 200837°F 200742%0%
May 1769°F45°F91°F 200837°F 201241%0%
May 1869°F45°F82°F 200833°F 201241%0%
May 1969°F45°F82°F 200836°F 201241%0%
May 2069°F45°F80°F 202334°F 200941%0%
May 2169°F45°F82°F 202635°F 202140%0%
May 2269°F46°F86°F 201735°F 200740%0%
May 2370°F46°F84°F 201736°F 202040%0%
May 2470°F46°F80°F 202637°F 200939%0%
May 2570°F46°F80°F 202337°F 201339%0%
May 2670°F46°F81°F 202339°F 202138%0%
May 2770°F46°F84°F 201740°F 202538%0%
May 2870°F46°F86°F 202034°F 200738%0%
May 2970°F46°F85°F 200940°F 201237%0%
May 3071°F47°F85°F 200940°F 201837%0%
May 3171°F47°F86°F 202138°F 202636%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.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:03 AM, sunset 8:18 PM
May 31
sunrise 5:32 AM, sunset 8:50 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00351862 (Corvallis State Univ), public domain. Records: NOAA GHCN-Daily, station USW00004236, 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.