Oak Lawn (IL) monthly weather averages

Contents

Average daytime temperature

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

Oak Lawn average temperature chart (Celsius) Oak Lawn average temperature chart (Fahrenheit)
Average monthly temperatures in Oak Lawn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -1.6 0.9 7.6 14.7 21.2 26.6 28.6 27.5 23.6 17.1 8.9 1.3
°F 29.2 33.7 45.6 58.5 70.2 79.9 83.4 81.5 74.4 62.8 48.1 34.3

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 Lawn monthly rainfall chart (mm) Oak Lawn monthly rainfall chart (inches)
Average monthly rainfall in Oak Lawn (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 43 37 69 100 88 99 102 96 90 66 72 64
inches 1.7 1.5 2.7 3.9 3.5 3.9 4 3.8 3.5 2.6 2.8 2.5
Rainy days 11 10 12 13 11 10 10 9 9 9 11 12

Average annual rainfall in Oak Lawn: 881mm (346.9 inches)

Average daily sunshine

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

Oak Lawn average daily sunshine chart
Average daily sunshine Oak Lawn
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.9 5.4 6.5 7.8 9.7 11.1 11 9.9 8.2 6.8 4.2 3.8

Day / night temperatures

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

Oak Lawn average minimum / maximum temperatures (Celsius) Oak Lawn average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Oak Lawn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -10.5 -8.2 -2 3.6 8.9 14.3 17.2 16.3 12.2 5.8 0 -6.9
Max °C -1.4 1.2 7.8 15 21.5 26.9 28.9 27.8 23.9 17.4 9.2 1.5
Min °F 13.2 17.3 28.4 38.5 48 57.7 62.9 61.3 53.9 42.4 32.1 19.6
Max °F 21.4 25.7 37.2 48.7 59.4 69.1 73.4 71.6 64.4 52.9 40.3 27.1

Sea temperature

The graph below shows the average sea temperature.

Oak Lawn average sea temperature chart (Celsius) Oak Lawn average sea temperature chart (Fahrenheit)
Average sea temperature around Oak Lawn 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 Lawn average winspeed by month (km/h) Oak Lawn average winspeed by month (mph)
Average wind speed in Oak Lawn (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 Lawn relative humidity averages
Average relative humidity in Oak Lawn
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

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Oak Lawn weather stats

Oak Lawn weather statistics
Hottest month: July 28.6°C 83.5°F
Driest month: February 37mm 1.5ins
Sunniest month: July 11hrs
Coldest month: January -1.6°C 29.1°F
Wettest month: July 102mm 4ins
Warmest sea: August 21.8°C 71.2°F
Map showing location of Oak Lawn (41.71087, -87.75811) Oak Lawn map pin © Google

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