Corvallis (OR) monthly weather averages

Average daytime temperature

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

Corvallis average temperature chart (Celsius) Corvallis average temperature chart (Fahrenheit)
Average monthly temperatures in Corvallis (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.6 10.1 12.4 14.8 18.3 21.9 25.8 26.3 23.3 17.4 11 7.6
°F 45.7 50.3 54.3 58.7 64.9 71.5 78.4 79.3 74 63.3 51.8 45.7

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.

Corvallis monthly rainfall chart (mm) Corvallis monthly rainfall chart (inches)
Average monthly rainfall in Corvallis (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 187 137 125 72 54 35 13 21 38 88 179 203
inches 7.4 5.4 4.9 2.8 2.1 1.4 0.5 0.8 1.5 3.4 7 8
Rainy days 18 16 17 14 11 7 3 5 7 11 18 19

Average annual rainfall in Corvallis: 1072.533mm (422.3 inches)

Average daily sunshine

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

Corvallis average daily sunshine chart
Average daily sunshine Corvallis
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.2 4.5 6.5 7.9 9.6 10.7 11.8 10.7 9.1 5.8 3 2.5

Day / night temperatures

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

Corvallis average minimum / maximum temperatures (Celsius) Corvallis average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Corvallis (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.9 1.9 2.8 3.9 6.1 9 10.5 10.6 8.7 5.5 3.4 1.3
Max °C 7.8 10.4 12.6 15.1 18.6 22.3 26.2 26.7 23.7 17.7 11.2 7.8
Min °F 33.5 35.3 37 39 42.9 48.1 50.8 51 47.7 41.9 38.1 34.3
Max °F 39.7 43 45.9 49.1 54.1 60.1 64.9 65.5 61.2 52.9 45.1 40.1

Sea temperature

The graph below shows the average sea temperature.

Corvallis average sea temperature chart (Celsius) Corvallis average sea temperature chart (Fahrenheit)
Average sea temperature around Corvallis in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10 9.8 10 10.5 11.7 13.2 14.3 14.7 14.5 13.2 11.8 10.6
°F 49.9 49.7 50 50.8 53.1 55.8 57.8 58.4 58.1 55.7 53.3 51

Wind speed

The graph below shows the average wind speed.

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

Corvallis relative humidity averages
Average relative humidity in Corvallis
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
85% 83% 79% 76% 73% 70% 65% 66% 71% 81% 86% 87%