Winthrop Harbor, IL Weather & Climate Normals
What a normal year in Winthrop Harbor actually looks like
On the 30-year record NOAA keeps for Winthrop Harbor, IL, the comfort score comes out to 49/100, 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 Winthrop Harbor's weather actually swings
Average temperatures in Winthrop Harbor run from 24°F in Jan up to 72°F in Jul, a 48.1°F seasonal swing, one of the widest gaps in this dataset.
How wet Winthrop Harbor actually gets
Winthrop Harbor averages 35.3in of precipitation a year across roughly 129 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Winthrop Harbor against the rest of the country
Out of 4876 cities scored here, Winthrop Harbor comes in at 2243; within IL alone it ranks 24 of 330. Population is about 6,565.
Checking the actual forecast
These figures come from CHICAGO WAUKEGAN RGNL AP, IL US, the NOAA station 4.8 miles from Winthrop Harbor, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station