Historical Weather Records & Monthly Climate for Portland, OR

All-Time High
116°F
All-Time Low
-3°F
Max Daily Snow
10.8"
Max Daily Rain
2.69"
Max Snow Depth
15"

Monthly Climate Averages for Portland, OR

Based on 30 years of historical data (1994 - 2023)

MonthHigh (°F)Low (°F)Precip (in)Snow (in)
January47°36°6.95"1.94"
February49°35°5.3"2.92"
March54°38°5.75"0.99"
April59°42°4.41"0.56"
May66°48°2.95"0
June72°53°1.93"0
July81°58°0.39"0
August82°58°0.6"0
September75°54°1.96"0
October62°47°4.46"0
November52°40°7.24"0.44"
December46°36°8.06"2.52"

Historical Weather Extremes for Portland, OR

Based on 80+ years of archive data (1940 - 2024)

🔥
Longest Heatwave
9 Days
2009
Consecutive days ≥ 90°F
🧊
Deepest Freeze
9 Days
1972
Consecutive days ≤ 32°F
🏜️
Longest Drought
52 Days
1985
Consecutive days w/o rain
Wettest Month
15.24"
December 2015
Most rainfall in one month
Snowiest Month
41.4"
January 1950
Most snowfall in one month

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