Saint Johns (MI) monthly weather averages

Contents

Average daytime temperature

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

Saint Johns average temperature chart (Celsius) Saint Johns average temperature chart (Fahrenheit)
Average monthly temperatures in Saint Johns (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -2.3 -0.8 5.5 13.4 20.3 25.5 28.1 26.5 22.1 15.3 7.6 0.5
°F 27.9 30.5 41.9 56.1 68.5 77.9 82.5 79.7 71.8 59.6 45.7 32.8

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 Johns monthly rainfall chart (mm) Saint Johns monthly rainfall chart (inches)
Average monthly rainfall in Saint Johns (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 41 35 56 73 70 82 66 86 87 61 65 54
inches 1.6 1.4 2.2 2.9 2.8 3.2 2.6 3.4 3.4 2.4 2.5 2.1
Rainy days 15 11 13 12 10 10 9 9 11 10 12 15

Average annual rainfall in Saint Johns: 733.6mm (288.8 inches)

Average daily sunshine

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

Saint Johns average daily sunshine chart
Average daily sunshine Saint Johns
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4 5.2 6.4 7.7 9.4 10.5 10.9 9.5 7.6 5.6 3.3 2.8

Day / night temperatures

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

Saint Johns average minimum / maximum temperatures (Celsius) Saint Johns average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Saint Johns (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -10.7 -10.2 -4.6 1.6 7.2 12.4 15 13.8 10 4 -1.1 -7.1
Max °C -2.1 -0.6 5.8 13.7 20.6 25.8 28.4 26.8 22.4 15.6 7.9 0.7
Min °F 12.7 13.6 23.8 34.8 45 54.3 59 56.8 50 39.2 30.1 19.3
Max °F 20.5 22.3 33.1 45.7 57 66.4 71.1 68.5 61.2 49.6 38.1 26.2

Sea temperature

The graph below shows the average sea temperature.

Saint Johns average sea temperature chart (Celsius) Saint Johns average sea temperature chart (Fahrenheit)
Average sea temperature around Saint Johns in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.8 2 1.8 3.1 6.3 11.8 18.1 21 18.9 13.5 8.5 4.8
°F 37.1 35.5 35.3 37.6 43.3 53.2 64.7 69.9 66 56.3 47.4 40.7

Wind speed

The graph below shows the average wind speed.

Saint Johns average winspeed by month (km/h) Saint Johns average winspeed by month (mph)
Average wind speed in Saint Johns (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 18 18 18 16 15 13 13 14 16 18 18
mph 12 11 11 11 10 9 8 8 9 10 11 11

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 Johns relative humidity averages
Average relative humidity in Saint Johns
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
78% 75% 72% 68% 66% 69% 71% 74% 77% 75% 79% 80%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Saint Johns weather stats

Saint Johns weather statistics
Hottest month: July 28.1°C 82.6°F
Driest month: February 35mm 1.4ins
Sunniest month: July 10.9hrs
Coldest month: January -2.3°C 27.9°F
Wettest month: September 87mm 3.4ins
Warmest sea: August 21°C 69.8°F
Map showing location of Saint Johns (43.00114, -84.55915) Saint Johns map pin © Google

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