Round Lake Park, IL Weather & Climate Normals
Round Lake Park's real weather, in one number
Round Lake Park, IL scores 43/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Round Lake Park's hottest and coldest months
Round Lake Park's hottest month is Jul, averaging 72°F; its coldest is Jan, averaging 21°F, a 51°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Round Lake Park
Round Lake Park averages 38.45in of precipitation a year across roughly 128 days with measurable rain or snow, and 43.1in of snow a year.
Where Round Lake Park ranks
Round Lake Park ranks 4095 of 4876 US cities in this dataset for comfort score, and 275 of 330 within IL. About 7,836 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from MUNDELEIN 4 WSW, IL US, 5.9 miles from Round Lake Park, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure