Stafford climate

Stafford Weather in May

NOAA 1991-2020 normals for Oregon City, 8.2 km from Stafford

Average highs run from 68°F on May 1 to 73°F on May 31, and lows from 46°F to 51°F. Normal precipitation for the month is 2.54 in.

May day by day

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

Normal daily high and low temperature at Stafford, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
71°F
Average low
48°F
Precipitation
2.54 in
Record high
99°FMay 15, 2006
Record low
33°FMay 1, 2013
Chance of a freeze
1%
Days of 90°F or more
0.8
Daylight
14 h 19 min to 15 h 25 min
Cloud cover
70%
Humidity
82%
Dew point
48°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
May 168°F46°F86°F 201433°F 20130%
May 268°F46°F82°F 201634°F 20060%
May 368°F46°F91°F 202639°F 20070%
May 468°F46°F83°F 201336°F 20020%
May 569°F46°F86°F 201336°F 20070%
May 669°F47°F83°F 201937°F 20000%
May 769°F47°F85°F 201638°F 20140%
May 869°F47°F85°F 202036°F 19990%
May 970°F47°F87°F 202037°F 19990%
May 1070°F47°F89°F 202433°F 20120%
May 1170°F48°F87°F 202439°F 20020%
May 1270°F48°F87°F 202335°F 20110%
May 1371°F48°F93°F 202335°F 20220%
May 1471°F48°F92°F 202340°F 20070%
May 1571°F48°F99°F 200640°F 20020%
May 1671°F49°F98°F 200841°F 20020%
May 1771°F49°F92°F 200838°F 20030%
May 1872°F49°F86°F 200634°F 20030%
May 1972°F49°F85°F 202339°F 20120%
May 2072°F49°F82°F 202340°F 20090%
May 2172°F49°F85°F 201741°F 20210%
May 2272°F50°F93°F 201738°F 20070%
May 2372°F50°F90°F 199940°F 20020%
May 2473°F50°F80°F 200143°F 20050%
May 2573°F50°F86°F 200542°F 20110%
May 2673°F50°F92°F 200539°F 20110%
May 2773°F50°F92°F 200544°F 19980%
May 2873°F51°F92°F 202042°F 20070%
May 2973°F51°F89°F 200937°F 20010%
May 3073°F51°F90°F 200941°F 19990%
May 3173°F51°F92°F 200142°F 20260%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Stafford, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:59 AM, sunset 8:18 PM
May 31
sunrise 5:26 AM, sunset 8:51 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356334 (Oregon City), public domain. Records: NOAA GHCN-Daily, station USW00094281, 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.