North Portland climate

North Portland Weather in May

NOAA 1991-2020 normals for Vancouver Pearson AP, 3.8 km from North Portland

Average highs run from 65°F on May 1 to 71°F on May 31, and lows from 45°F to 51°F. Normal precipitation for the month is 2.51 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 North Portland, 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
48°F
Precipitation
2.51 in
Record high
96°FMay 16, 2008
Record low
33°FMay 2, 2006
Chance of a freeze
2%
Days of 90°F or more
0.6
Daylight
14 h 20 min to 15 h 26 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 165°F45°F88°F 201435°F 201147%0%
May 266°F45°F86°F 201633°F 200647%0%
May 366°F45°F91°F 202636°F 200146%0%
May 466°F46°F85°F 201734°F 200246%0%
May 566°F46°F85°F 201336°F 199945%0%
May 667°F46°F84°F 201336°F 200045%0%
May 767°F46°F85°F 201634°F 200245%0%
May 867°F47°F82°F 202033°F 200244%0%
May 967°F47°F87°F 202034°F 200644%0%
May 1067°F47°F90°F 202434°F 199944%0%
May 1168°F47°F91°F 199737°F 201243%0%
May 1268°F47°F90°F 202336°F 201143%0%
May 1368°F48°F93°F 202335°F 202243%0%
May 1468°F48°F92°F 201437°F 200743%0%
May 1568°F48°F94°F 200636°F 200243%0%
May 1669°F48°F96°F 200838°F 200243%0%
May 1769°F49°F93°F 200837°F 200343%0%
May 1869°F49°F84°F 200633°F 200342%0%
May 1969°F49°F84°F 200837°F 200342%0%
May 2069°F49°F81°F 202339°F 200142%0%
May 2169°F49°F85°F 200143°F 202242%0%
May 2270°F50°F95°F 200143°F 200541%0%
May 2370°F50°F91°F 199939°F 200541%0%
May 2470°F50°F80°F 199941°F 201141%0%
May 2570°F50°F83°F 200543°F 200940%0%
May 2670°F50°F90°F 200542°F 199840%0%
May 2770°F50°F94°F 200541°F 201040%0%
May 2870°F51°F91°F 202041°F 199839%0%
May 2970°F51°F89°F 200937°F 200139%0%
May 3070°F51°F91°F 200740°F 201839%0%
May 3171°F51°F92°F 200145°F 202338%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at North Portland, 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 5:58 AM, sunset 8:18 PM
May 31
sunrise 5:26 AM, sunset 8:52 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094298 (Vancouver Pearson AP), public domain. Records: NOAA GHCN-Daily, station USW00094298, 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.