Wilsonville (OR) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Wilsonville

Wilsonville average temperature chart (Celsius) Wilsonville average temperature chart (Fahrenheit)
Average monthly temperatures in Wilsonville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.2 10.2 12.8 15.5 19.1 22.9 26.5 26.8 23.4 17.5 11 7.3
°F 45 50.3 55 59.8 66.5 73.3 79.7 80.3 74.1 63.4 51.7 45.1

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Wilsonville monthly rainfall chart (mm) Wilsonville monthly rainfall chart (inches)
Average monthly rainfall in Wilsonville (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 173 127 120 78 62 44 17 27 50 88 170 192
inches 6.8 5 4.7 3.1 2.4 1.7 0.7 1.1 2 3.4 6.7 7.6
Rainy days 17 15 17 14 11 8 4 5 8 12 18 18

Average annual rainfall in Wilsonville: 1068.7mm (420.7 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Wilsonville

Wilsonville average daily sunshine chart
Average daily sunshine Wilsonville
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.1 4.5 6.6 7.9 9.6 10.6 11.8 10.6 8.8 5.6 3 2.4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Wilsonville average minimum / maximum temperatures (Celsius) Wilsonville average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Wilsonville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.4 1.6 2.6 3.9 6.6 9.6 11.2 11.4 9.1 5.7 3.3 1
Max °C 7.4 10.4 13 15.8 19.5 23.3 26.9 27.2 23.8 17.8 11.2 7.5
Min °F 32.7 34.9 36.7 38.9 43.8 49.2 52.1 52.5 48.3 42.2 37.9 33.7
Max °F 39 42.8 46 49.6 55.4 61.5 66.2 66.7 61.5 53.1 45 39.6

Sea temperature

The graph below shows the average sea temperature.

Wilsonville average sea temperature chart (Celsius) Wilsonville average sea temperature chart (Fahrenheit)
Average sea temperature around Wilsonville in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.1 9 9.1 9.5 10.4 11.7 12.9 13.5 13.3 12 10.7 9.6
°F 48.3 48.1 48.4 49.1 50.7 53.1 55.3 56.3 55.9 53.6 51.2 49.2

Wind speed

The graph below shows the average wind speed.

Wilsonville average winspeed by month (km/h) Wilsonville average winspeed by month (mph)
Average wind speed in Wilsonville (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 14 14 13 13 13 13 12 12 11 14 14
mph 9 9 9 8 8 8 8 7 7 7 9 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Wilsonville relative humidity averages
Average relative humidity in Wilsonville
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
82% 80% 75% 72% 69% 66% 62% 64% 69% 78% 83% 84%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Wilsonville weather stats

Wilsonville weather statistics
Hottest month: August 26.8°C 80.2°F
Driest month: July 17mm 0.7ins
Sunniest month: July 11.8hrs
Coldest month: January 7.2°C 45°F
Wettest month: December 192mm 7.6ins
Warmest sea: August 13.5°C 56.3°F
Map showing location of Wilsonville (45.29984, -122.77371) Wilsonville map pin © Google

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