Portage (MI) monthly weather averages

Average daytime temperature

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

Portage average temperature chart (Celsius) Portage average temperature chart (Fahrenheit)
Average monthly temperatures in Portage (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -0.9 1.3 7.7 15.4 21.9 26.9 29 27.7 23.7 17 9.2 1.8
°F 30.4 34.3 45.9 59.6 71.5 80.4 84.2 81.8 74.7 62.6 48.5 35.2

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.

Portage monthly rainfall chart (mm) Portage monthly rainfall chart (inches)
Average monthly rainfall in Portage (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 51 41 64 88 84 94 95 87 98 75 75 69
inches 2 1.6 2.5 3.5 3.3 3.7 3.7 3.4 3.9 2.9 2.9 2.7
Rainy days 15 12 13 13 11 10 9 9 10 10 13 15

Average annual rainfall in Portage: 876.367mm (345 inches)

Average daily sunshine

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

Portage average daily sunshine chart
Average daily sunshine Portage
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.1 5.2 6.4 7.9 9.5 10.9 10.9 9.8 8 6.1 3.6 3

Day / night temperatures

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

Portage average minimum / maximum temperatures (Celsius) Portage average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Portage (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -8.9 -7.9 -2.6 3.2 9 14 16.5 15.5 11.6 5.8 0.6 -5.8
Max °C -0.7 1.5 8 15.7 22.3 27.2 29.3 28 24 17.3 9.4 2
Min °F 16 17.8 27.3 37.7 48.1 57.2 61.7 59.8 52.9 42.4 33.1 21.7
Max °F 23.4 26.2 36.9 48.9 60.1 69.1 73.2 71.1 64 52.7 41 28.6

Sea temperature

The graph below shows the average sea temperature.

Portage average sea temperature chart (Celsius) Portage average sea temperature chart (Fahrenheit)
Average sea temperature around Portage 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.

Portage average winspeed by month (km/h) Portage average winspeed by month (mph)
Average wind speed in Portage (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 10 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.

Portage relative humidity averages
Average relative humidity in Portage
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 75% 71% 67% 66% 68% 70% 74% 75% 74% 77% 80%

Other monthly averages

UV index Best time to go?

Portage weather stats

Portage weather statistics
Hottest month: July 29°C 84.2°F
Driest month: February 41mm 1.6ins
Sunniest month: July 10.9hrs
Coldest month: January -0.9°C 30.4°F
Wettest month: September 98mm 3.9ins
Warmest sea: August 21.7°C 71.1°F
Map showing location of Portage (42.20115, -85.58) Portage map pin © Google

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