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Climate & Weather Averages in Portland, Oregon, USA

Currently: 67 °F. Sunny. (Weather station: Portland International Airport, USA). See more current weather

Annual Weather Averages Near Portland

Averages are for Portland International Airport, which is 7 miles from Portland.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Portland

High Temp: 82 °F

Low Temp: 36 °F

Mean Temp: 55 °F

Precipitation: 3.13"

Humidity: 71%

Dew Point: 45 °F

Wind: 11 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

January Climate & Weather Averages in Portland

High Temp: 47 °F

Low Temp: 37 °F

Mean Temp: 42 °F

Precipitation: 5.20"

Humidity: 82%

Dew Point: 36 °F

Wind: 15 mph

Pressure: 30.11 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Portland

High Temp: 51 °F

Low Temp: 37 °F

Mean Temp: 44 °F

Precipitation: 3.82"

Humidity: 77%

Dew Point: 36 °F

Wind: 13 mph

Pressure: 30.10 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Portland

High Temp: 56 °F

Low Temp: 40 °F

Mean Temp: 48 °F

Precipitation: 3.90"

Humidity: 73%

Dew Point: 39 °F

Wind: 11 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

April Climate & Weather Averages in Portland

High Temp: 61 °F

Low Temp: 44 °F

Mean Temp: 52 °F

Precipitation: 2.79"

Humidity: 69%

Dew Point: 42 °F

Wind: 10 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Portland

High Temp: 69 °F

Low Temp: 50 °F

Mean Temp: 59 °F

Precipitation: 2.45"

Humidity: 65%

Dew Point: 46 °F

Wind: 9 mph

Pressure: 30.04 "Hg

Visibility: 11 mi

June Climate & Weather Averages in Portland

High Temp: 74 °F

Low Temp: 54 °F

Mean Temp: 64 °F

Precipitation: 1.63"

Humidity: 63%

Dew Point: 50 °F

Wind: 10 mph

Pressure: 30.04 "Hg

Visibility: 11 mi

July Climate & Weather Averages in Portland

High Temp: 81 °F

Low Temp: 58 °F

Mean Temp: 70 °F

Precipitation: 0.53"

Humidity: 58%

Dew Point: 54 °F

Wind: 11 mph

Pressure: 30.04 "Hg

Visibility: 11 mi

August Climate & Weather Averages in Portland

High Temp: 82 °F

Low Temp: 59 °F

Mean Temp: 70 °F

Precipitation: 0.55"

Humidity: 59%

Dew Point: 54 °F

Wind: 10 mph

Pressure: 30.01 "Hg

Visibility: 11 mi

September Climate & Weather Averages in Portland

High Temp: 76 °F

Low Temp: 54 °F

Mean Temp: 65 °F

Precipitation: 1.76"

Humidity: 65%

Dew Point: 52 °F

Wind: 9 mph

Pressure: 30.02 "Hg

Visibility: 10 mi

October Climate & Weather Averages in Portland

High Temp: 64 °F

Low Temp: 47 °F

Mean Temp: 55 °F

Precipitation: 3.53"

Humidity: 76%

Dew Point: 47 °F

Wind: 9 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Portland

High Temp: 53 °F

Low Temp: 41 °F

Mean Temp: 47 °F

Precipitation: 5.48"

Humidity: 82%

Dew Point: 41 °F

Wind: 12 mph

Pressure: 30.10 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Portland

High Temp: 46 °F

Low Temp: 36 °F

Mean Temp: 41 °F

Precipitation: 5.89"

Humidity: 83%

Dew Point: 36 °F

Wind: 14 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthAugust (70 °F avg)
Coldest MonthDecember (41 °F avg)
Wettest MonthDecember (5.89" avg)
Windiest MonthJanuary (15 mph avg)
Annual precip.37.53" (per year)

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