Des Plaines, IL Weather & Climate Normals
Des Plaines's real weather, in one number
Des Plaines, IL scores 38/100 on this site's reading of NOAA's own 30-year normals: weather-driven. Heat, cold, snow, or rainfall here are heavy enough that they shape daily life for a large part of the year. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Des Plaines's hottest and coldest months
Des Plaines's hottest month is Jul, averaging 76°F; its coldest is Jan, averaging 25°F, a 50.3°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Des Plaines
Des Plaines averages 37.86in of precipitation a year across roughly 126 days with measurable rain or snow, and 38.4in of snow a year.
Where Des Plaines ranks
Des Plaines ranks 4684 of 4876 US cities in this dataset for comfort score, and 296 of 330 within IL. About 58,832 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from CHICAGO OHARE INTL AP, IL US, 3.2 miles from Des Plaines, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station