Skip to content
VSWeather

Oak Lawn, IL weather and climate

Cook County, IL · population 57,098 · about 610 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Oak Lawn's own coordinates.

The year at a glance

Sunny days
180
clear or partly cloudy, per year
Precipitation
39 in
per year
Wet days
132
rain or snow per year
Snowfall
39 in
per year
Hot days
22
above 90 °F
Freezing nights
109
at or below 32 °F
Humidity
71%
average relative
Average temperature
52 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 33 °FDaily high, Feb: 37 °FDaily high, Mar: 48 °FDaily high, Apr: 60 °FDaily high, May: 72 °FDaily high, Jun: 81 °FDaily high, Jul: 85 °FDaily high, Aug: 83 °FDaily high, Sep: 77 °FDaily high, Oct: 64 °FDaily high, Nov: 49 °FDaily high, Dec: 38 °FDaily low, Jan: 19 °FDaily low, Feb: 22 °FDaily low, Mar: 32 °FDaily low, Apr: 42 °FDaily low, May: 52 °FDaily low, Jun: 62 °FDaily low, Jul: 68 °FDaily low, Aug: 67 °FDaily low, Sep: 59 °FDaily low, Oct: 46 °FDaily low, Nov: 35 °FDaily low, Dec: 25 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high333748607281858377644938
Daily low192232425262686759463525

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovOak Lawn, Jan: 2.4 inOak Lawn, Feb: 2.1 inOak Lawn, Mar: 2.8 inOak Lawn, Apr: 4.5 inOak Lawn, May: 4.4 inOak Lawn, Jun: 4.0 inOak Lawn, Jul: 3.6 inOak Lawn, Aug: 3.8 inOak Lawn, Sep: 3.0 inOak Lawn, Oct: 3.3 inOak Lawn, Nov: 2.8 inOak Lawn, Dec: 2.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Oak Lawn2.42.12.84.54.44.03.63.83.03.32.82.4

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovOak Lawn, Jan: 10 daysOak Lawn, Feb: 11 daysOak Lawn, Mar: 14 daysOak Lawn, Apr: 13 daysOak Lawn, May: 15 daysOak Lawn, Jun: 16 daysOak Lawn, Jul: 20 daysOak Lawn, Aug: 20 daysOak Lawn, Sep: 20 daysOak Lawn, Oct: 16 daysOak Lawn, Nov: 14 daysOak Lawn, Dec: 11 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Oak Lawn101114131516202020161411

Compare Oak Lawn with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Illinois city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).