Chicago vs Louisville: which is better, month by month

Louisville beats Chicago in 8 of 12 months — its lead peaks in October (87 vs 73) — while Chicago wins June to September.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Chicago

🇺🇸 United States · mild climate

Best month: September 91/100
Months won: 4 of 12

Louisville

🇺🇸 United States · mild climate

Best month: May 89/100
Months won: 8 of 12

Chicago vs Louisville — all 12 months

Month	Chicago	Louisville	Winner	Gap
January	40Ffreezing, a little rain, clean air	50Dcold, rainy, clean air	Louisville	10
February	49Ffreezing, a little rain, clean air	59Dcold, rainy, clean air	Louisville	10
March	64Ccold, a little rain, clean air	70Bcool, rainy, clean air	Louisville	6
April	71Bcool, rainy, clean air	81Anice, rainy, clean air	Louisville	10
May	83Anice, rainy, muggy air	89Awarm, rainy, clean air	Louisville	6
June	86Awarm, rainy	78Bhot, rainy	Chicago	8
July	76Bhot, rainy, muggy air	68Csweltering, rainy, muggy air	Chicago	8
August	81Ahot, a little rain	74Bsweltering, rainy	Chicago	7
September	91Swarm, a little rain, clean air	83Ahot, rainy, clean air	Chicago	8
October	73Bnice, rainy, clean air	87Anice, a little rain, clean air	Louisville	14
November	62Ccold, a little rain, clean air	69Ccool, a little rain, clean air	Louisville	7
December	46Fcold, a little rain, clean air	58Dcold, rainy, clean air	Louisville	12

A month is a tie when the two are within 3 points. The widest gap is October (73 vs 87). Tap a month for that month's temperature, rain, humidity and air quality side by side.