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Climate & Weather Averages in City of Wilsonville, Oregon, USA

Currently: 60 °F. Partly sunny. (Weather station: Portland International Airport, USA). See more current weather

Annual Weather Averages in Portland International Airport

Portland International Airport is 21 miles from City of Wilsonville, so the actual climate in City of Wilsonville can vary a bit.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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 City of Wilsonville

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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