Stevenson (WA) monthly weather averages

Average daytime temperature

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

Stevenson average temperature chart (Celsius) Stevenson average temperature chart (Fahrenheit)
Average monthly temperatures in Stevenson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.9 7.7 10.4 13.5 17.5 21.2 24.6 24.8 21.3 15.9 8.8 5.1
°F 40.8 45.9 50.7 56.3 63.5 70.2 76.3 76.6 70.3 60.6 47.9 41.2

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.

Stevenson monthly rainfall chart (mm) Stevenson monthly rainfall chart (inches)
Average monthly rainfall in Stevenson (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 409 285 266 145 87 60 19 42 79 180 338 393
inches 16.1 11.2 10.5 5.7 3.4 2.4 0.8 1.6 3.1 7.1 13.3 15.5
Rainy days 15 13 14 12 10 7 4 5 7 10 16 16

Average annual rainfall in Stevenson: 2226.333mm (876.5 inches)

Average daily sunshine

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

Stevenson average daily sunshine chart
Average daily sunshine Stevenson
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.9 4.5 6.6 7.9 9.5 10.6 11.8 10.7 8.8 5.8 2.9 2.2

Day / night temperatures

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

Stevenson average minimum / maximum temperatures (Celsius) Stevenson average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Stevenson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -1.5 -0.3 0.6 2 4.6 7.7 9.6 9.7 7.2 3.8 1.2 -1.1
Max °C 5.1 7.9 10.7 13.8 17.8 21.6 25 25.2 21.7 16.2 9 5.3
Min °F 29.4 31.5 33 35.6 40.3 45.8 49.3 49.4 44.9 38.8 34.2 30.1
Max °F 35.2 38.8 42.1 46.2 52.2 58.3 63.1 63.3 57.9 50 41.2 35.8

Sea temperature

The graph below shows the average sea temperature.

Stevenson average sea temperature chart (Celsius) Stevenson average sea temperature chart (Fahrenheit)
Average sea temperature around Stevenson in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.9 8.8 8.9 9.1 9.9 11.2 12.6 13.3 13 11.8 10.4 9.3
°F 48 47.8 48 48.4 49.8 52.1 54.6 56 55.5 53.3 50.8 48.8

Wind speed

The graph below shows the average wind speed.

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

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.

Stevenson relative humidity averages
Average relative humidity in Stevenson
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80% 77% 70% 66% 62% 60% 56% 59% 65% 73% 80% 82%