Saint Joseph (MI) monthly weather averages

Average daytime temperature

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

Saint Joseph average temperature chart (Celsius) Saint Joseph average temperature chart (Fahrenheit)
Average monthly temperatures in Saint Joseph (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.1 0.9 7.2 14.4 20.7 26 28 26.9 23.2 16.5 8.9 1.7
°F 30 33.7 45 57.9 69.3 78.7 82.5 80.5 73.7 61.7 47.9 35.1

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.

Saint Joseph monthly rainfall chart (mm) Saint Joseph monthly rainfall chart (inches)
Average monthly rainfall in Saint Joseph (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 53 43 66 89 75 92 90 87 91 76 80 71
inches 2.1 1.7 2.6 3.5 3 3.6 3.5 3.4 3.6 3 3.2 2.8
Rainy days 14 11 13 13 11 10 9 9 10 10 12 15

Average annual rainfall in Saint Joseph: 869.066mm (342.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Saint Joseph

Saint Joseph average daily sunshine chart
Average daily sunshine Saint Joseph
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.4 5.3 6.4 7.9 9.6 11 11 9.9 8.1 6.4 3.9 3.3

Day / night temperatures

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

Saint Joseph average minimum / maximum temperatures (Celsius) Saint Joseph average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Saint Joseph (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -8.9 -7.6 -2.1 3.4 8.8 14.2 16.9 16 12.2 6.1 0.8 -5.5
Max °C -0.9 1.2 7.5 14.7 21 26.3 28.3 27.2 23.5 16.8 9.1 1.9
Min °F 16 18.4 28.3 38 47.8 57.5 62.4 60.8 53.9 42.9 33.4 22.1
Max °F 23.2 26.2 36.9 48.2 58.8 68.4 72.7 70.9 64 52.5 40.8 28.8

Sea temperature

The graph below shows the average sea temperature.

Saint Joseph average sea temperature chart (Celsius) Saint Joseph average sea temperature chart (Fahrenheit)
Average sea temperature around Saint Joseph in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.7 2.9 2.7 3.7 6.1 12.1 19.3 21.7 19.5 13.8 8.7 5.2
°F 38.6 37.2 36.9 38.6 43 53.8 66.7 71.1 67.1 56.9 47.6 41.4

Wind speed

The graph below shows the average wind speed.

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

Saint Joseph relative humidity averages
Average relative humidity in Saint Joseph
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
76% 75% 71% 66% 65% 67% 70% 73% 74% 73% 75% 79%