Allegan (MI) monthly weather averages

Average daytime temperature

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

Allegan average temperature chart (Celsius) Allegan average temperature chart (Fahrenheit)
Average monthly temperatures in Allegan (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.2 0.6 6.8 14.4 20.9 25.6 27.8 26.6 22.6 16 8.5 1.3
°F 29.8 33.1 44.2 57.9 69.6 78 82 80 72.8 60.8 47.4 34.3

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.

Allegan monthly rainfall chart (mm) Allegan monthly rainfall chart (inches)
Average monthly rainfall in Allegan (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 61 42 67 85 80 92 84 89 98 74 85 78
inches 2.4 1.6 2.6 3.3 3.2 3.6 3.3 3.5 3.8 2.9 3.3 3.1
Rainy days 16 12 13 13 10 10 9 9 10 11 13 16

Average annual rainfall in Allegan: 891.666mm (351 inches)

Average daily sunshine

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

Allegan average daily sunshine chart
Average daily sunshine Allegan
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.8 5 6.2 7.8 9.3 10.7 10.7 9.6 7.8 5.8 3.5 2.8

Day / night temperatures

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

Allegan average minimum / maximum temperatures (Celsius) Allegan average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Allegan (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.4 -8.9 -3.5 2.1 7.4 12.3 15.1 14.1 10.3 4.5 0.1 -6.3
Max °C -1 0.9 7.1 14.7 21.2 25.9 28.1 27 23 16.3 8.8 1.5
Min °F 15.1 16.1 25.8 35.8 45.3 54.1 59.2 57.3 50.5 40.1 32.1 20.8
Max °F 22.6 24.8 35.2 47.1 57.7 66.4 70.9 68.9 61.9 50.7 39.9 27.7

Sea temperature

The graph below shows the average sea temperature.

Allegan average sea temperature chart (Celsius) Allegan average sea temperature chart (Fahrenheit)
Average sea temperature around Allegan in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.7 2.9 2.7 3.8 6.3 12.3 19.2 21.7 19.5 13.9 8.8 5.3
°F 38.6 37.2 36.9 38.8 43.4 54.1 66.6 71.1 67.1 57.1 47.9 41.6

Wind speed

The graph below shows the average wind speed.

Allegan average winspeed by month (km/h) Allegan average winspeed by month (mph)
Average wind speed in Allegan (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 19 20 20 17 16 14 14 15 17 19 19
mph 13 12 13 12 11 10 9 9 9 11 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.

Allegan relative humidity averages
Average relative humidity in Allegan
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 75% 71% 66% 65% 68% 70% 74% 75% 74% 76% 80%