Detroit (MI) monthly weather averages

Average daytime temperature

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

Detroit average temperature chart (Celsius) Detroit average temperature chart (Fahrenheit)
Average monthly temperatures in Detroit (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.3 0.1 6.3 13.6 20.1 25.3 27.7 26.7 22.6 15.7 8.3 1.5
°F 29.7 32.1 43.4 56.5 68.2 77.6 81.9 80 72.6 60.3 47 34.7

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.

Detroit monthly rainfall chart (mm) Detroit monthly rainfall chart (inches)
Average monthly rainfall in Detroit (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 50 46 67 79 73 92 85 83 73 56 71 75
inches 2 1.8 2.6 3.1 2.9 3.6 3.3 3.3 2.9 2.2 2.8 2.9
Rainy days 12 11 13 12 11 11 9 9 10 10 12 14

Average daily sunshine

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

Detroit average daily sunshine chart
Average daily sunshine Detroit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.8 4.7 5.4 7 8.8 10.1 10.4 9.1 7.2 5.9 3.7 3

Day / night temperatures

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

Detroit average minimum / maximum temperatures (Celsius) Detroit average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Detroit (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -8.3 -7.5 -2.2 3.4 9.2 14.6 17.4 16.5 12.6 6.5 1.1 -5.1
Max °C -1.1 0.3 6.6 13.9 20.4 25.6 28 26.9 22.8 16 8.5 1.7
Min °F 17.1 18.6 28.1 38 48.6 58.3 63.3 61.7 54.7 43.6 34 22.9
Max °F 23.5 25.5 36 47.5 58.6 68.2 72.9 71.1 63.9 52.2 40.6 28.9

Sea temperature

The graph below shows the average sea temperature.

Detroit average sea temperature chart (Celsius) Detroit average sea temperature chart (Fahrenheit)
Average sea temperature around Detroit in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.6 1.7 1.7 3.6 8 14.4 20.3 22.3 20 14.6 9.2 4.9
°F 36.7 35 35 38.5 46.4 57.9 68.6 72.2 67.9 58.2 48.6 40.9

Wind speed

The graph below shows the average wind speed.

Detroit average winspeed by month (km/h) Detroit average winspeed by month (mph)
Average wind speed in Detroit (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 20 19 20 19 17 15 13 13 14 16 18 19
mph 12 12 12 12 11 9 8 8 9 10 11 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.

Detroit relative humidity averages
Average relative humidity in Detroit
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
76% 75% 73% 67% 66% 68% 70% 73% 75% 73% 76% 79%

Other monthly averages

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Detroit weather stats

Detroit weather statistics
Hottest month: July 27.7°C 81.9°F
Driest month: February 46mm 1.8ins
Sunniest month: July 10.4hrs
Coldest month: January -1.3°C 29.7°F
Wettest month: June 92mm 3.6ins
Warmest sea: August 22.3°C 72.1°F
Map showing location of Detroit (42.33143, -83.04575)

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