Oak Park (IL) monthly weather averages

Average daytime temperature

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

Oak Park average temperature chart (Celsius) Oak Park average temperature chart (Fahrenheit)
Average monthly temperatures in Oak Park (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.6 0.8 7.5 14.5 20.9 26.4 28.4 27.4 23.5 17 8.9 1.4
°F 29.1 33.5 45.5 58.2 69.6 79.5 83.2 81.3 74.3 62.6 48 34.4

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.

Oak Park monthly rainfall chart (mm) Oak Park monthly rainfall chart (inches)
Average monthly rainfall in Oak Park (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 44 38 70 100 86 97 103 95 88 66 71 65
inches 1.7 1.5 2.8 3.9 3.4 3.8 4 3.7 3.5 2.6 2.8 2.6
Rainy days 11 10 12 13 11 10 10 9 9 9 11 12

Average annual rainfall in Oak Park: 876.767mm (345.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Oak Park

Oak Park average daily sunshine chart
Average daily sunshine Oak Park
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.9 5.4 6.5 7.7 9.7 11.1 11 9.8 8.2 6.8 4.2 3.8

Day / night temperatures

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

Oak Park average minimum / maximum temperatures (Celsius) Oak Park average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Oak Park (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -10.4 -8.1 -2 3.6 8.8 14.3 17.3 16.6 12.5 6 0.1 -6.8
Max °C -1.4 1.1 7.8 14.8 21.2 26.7 28.7 27.7 23.8 17.3 9.1 1.6
Min °F 13.3 17.5 28.5 38.5 47.8 57.7 63.1 61.8 54.4 42.7 32.2 19.9
Max °F 21.4 25.7 37.2 48.6 59 68.9 73.4 71.8 64.6 52.9 40.3 27.3

Sea temperature

The graph below shows the average sea temperature.

Oak Park average sea temperature chart (Celsius) Oak Park average sea temperature chart (Fahrenheit)
Average sea temperature around Oak Park in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.4 3.6 3.5 4.5 6.9 12.5 19.3 21.8 19.7 14.3 9.4 6
°F 39.9 38.5 38.4 40.1 44.4 54.6 66.7 71.3 67.5 57.7 48.9 42.9

Wind speed

The graph below shows the average wind speed.

Oak Park average winspeed by month (km/h) Oak Park average winspeed by month (mph)
Average wind speed in Oak Park (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 20 19 21 21 18 16 14 14 15 17 19 19
mph 12 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.

Oak Park relative humidity averages
Average relative humidity in Oak Park
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 73% 70% 66% 65% 66% 70% 72% 72% 70% 74% 77%

Other monthly averages

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Oak Park weather stats

Oak Park weather statistics
Hottest month: July 28.4°C 83.1°F
Driest month: February 38mm 1.5ins
Sunniest month: July 11hrs
Coldest month: January -1.6°C 29.1°F
Wettest month: July 103mm 4.1ins
Warmest sea: August 21.8°C 71.2°F
Map showing location of Oak Park (41.88503, -87.7845) Oak Park map pin © Google

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