Oregon climate

Oregon Weather in May

NOAA 1991-2020 normals for Oregon, 0.7 km from Oregon

Average highs run from 68°F on May 1 to 79°F on May 31, and lows from 47°F to 59°F.

May day by day

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

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

May at a glance

Average high
74°F
Average low
53°F
Snowfall
0.1 in
Record high
102°FMay 26, 2018
Record low
29°FMay 3, 2005
Chance of a freeze
9%
Days of 90°F or more
1.3
Daylight
13 h 54 min to 14 h 49 min
Cloud cover
63%
Humidity
74%
Dew point
54°F
Wind
10.7 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 168°F47°F89°F 196531°F 19631%
May 269°F48°F92°F 196832°F 19661%
May 369°F48°F90°F 195229°F 20051%
May 469°F49°F91°F 195032°F 19540%
May 570°F49°F92°F 196633°F 20210%
May 670°F49°F93°F 202337°F 20110%
May 771°F50°F95°F 196636°F 19760%
May 871°F50°F91°F 196335°F 19800%
May 971°F51°F93°F 201133°F 19800%
May 1072°F51°F93°F 201137°F 19660%
May 1172°F51°F95°F 200034°F 19810%
May 1272°F52°F94°F 202232°F 20130%
May 1373°F52°F92°F 201834°F 19970%
May 1473°F53°F96°F 201338°F 19800%
May 1574°F53°F94°F 202635°F 19670%
May 1674°F53°F93°F 201933°F 20140%
May 1774°F54°F92°F 197135°F 20140%
May 1875°F54°F94°F 197537°F 20140%
May 1975°F54°F97°F 199839°F 19680%
May 2076°F55°F92°F 197538°F 20020%
May 2176°F55°F93°F 197032°F 19680%
May 2276°F56°F93°F 197036°F 20220%
May 2377°F56°F92°F 196737°F 19630%
May 2477°F56°F97°F 196739°F 19790%
May 2577°F57°F98°F 196741°F 19790%
May 2678°F57°F102°F 201843°F 20220%
May 2778°F57°F99°F 201842°F 19680%
May 2878°F58°F97°F 201838°F 19710%
May 2979°F58°F96°F 201843°F 19650%
May 3079°F58°F96°F 200046°F 19650%
May 3179°F59°F95°F 201844°F 19720%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Oregon, in percent, and of at least 0.1 inch of snowfall.00.20.40.61102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:21 AM, sunset 8:15 PM
May 31
sunrise 5:54 AM, sunset 8:43 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00236357 (Oregon), public domain. Records: NOAA GHCN-Daily, station USW00013993, 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.