Round Lake Beach, IL Weather & Climate Normals
What a normal year in Round Lake Beach actually looks like
On the 30-year record NOAA keeps for Round Lake Beach, IL, the comfort score comes out to 43/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Round Lake Beach's weather actually swings
Average temperatures in Round Lake Beach run from 22°F in Jan up to 73°F in Jul, a 50.4°F seasonal swing, one of the widest gaps in this dataset.
How wet Round Lake Beach actually gets
Over a typical year, Round Lake Beach sees about 37.77in of precipitation a year across roughly 126 days with measurable rain or snow, with 43.4in of snow a year.
Round Lake Beach against the rest of the country
Out of 4876 cities scored here, Round Lake Beach comes in at 3990; within IL alone it ranks 237 of 330. Population is about 27,091.
Checking the actual forecast
These figures come from LAKE VILLA 2NE, IL US, the NOAA station 3.5 miles from Round Lake Beach, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated