Willmar (MN) monthly weather averages

Average daytime temperature

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

Willmar average temperature chart (Celsius) Willmar average temperature chart (Fahrenheit)
Average monthly temperatures in Willmar (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -7.4 -4 3.1 12.9 20.9 26.1 28.7 27 21.6 14.9 4.2 -4.7
°F 18.7 24.9 37.5 55.2 69.6 79 83.7 80.6 70.9 58.8 39.6 23.5

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.

Willmar monthly rainfall chart (mm) Willmar monthly rainfall chart (inches)
Average monthly rainfall in Willmar (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 21 19 40 63 77 104 84 89 69 53 31 19
inches 0.8 0.8 1.6 2.5 3 4.1 3.3 3.5 2.7 2.1 1.2 0.7
Rainy days 8 7 9 10 11 11 9 9 9 7 7 8

Average annual rainfall in Willmar: 619.5mm (243.9 inches)

Average daily sunshine

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

Willmar average daily sunshine chart
Average daily sunshine Willmar
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.6 6.6 7.5 8.6 9.9 11.2 12 10.6 8.4 6.6 4.5 4.3

Day / night temperatures

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

Willmar average minimum / maximum temperatures (Celsius) Willmar average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Willmar (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -18.1 -14.7 -6.9 1.2 8 13.6 16.2 14.5 9.1 2.8 -5.3 -14.1
Max °C -7.1 -3.7 3.3 13.2 21.2 26.4 29.1 27.3 21.9 15.2 4.5 -4.5
Min °F -0.6 5.5 19.6 34.2 46.4 56.5 61.1 58.1 48.4 37 22.6 6.6
Max °F 9.3 15.4 28.8 45 58.3 68 72.7 69.6 59.9 48.2 31.3 15.3

Sea temperature

The graph below shows the average sea temperature.

Willmar average sea temperature chart (Celsius) Willmar average sea temperature chart (Fahrenheit)
Average sea temperature around Willmar in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.8 6.6 6.9 7.9 9.3 11.4 14.1 17.1 16 12.5 9.5 7.6
°F 44.2 43.8 44.5 46.2 48.8 52.5 57.4 62.9 60.8 54.6 49.1 45.7

Wind speed

The graph below shows the average wind speed.

Willmar average winspeed by month (km/h) Willmar average winspeed by month (mph)
Average wind speed in Willmar (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 19 21 22 20 18 17 17 18 19 19 19
mph 12 12 13 14 13 11 11 11 11 12 12 12

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.

Willmar relative humidity averages
Average relative humidity in Willmar
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 70% 70% 65% 62% 66% 67% 69% 72% 68% 74% 76%