Chicago vs Toronto: which is better, month by month

Chicago beats Toronto in 4 of 12 months — its lead peaks in March (64 vs 55) — while Toronto wins June and August; they are within 3 points in the other 6 months.

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

Toronto

🇨🇦 Canada · mild climate

Best month
September 93/100
Months won
2 of 12

Chicago vs Toronto — all 12 months

MonthChicagoTorontoWinnerGap
January40Ffreezing, a little rain, clean air36Ffreezing, a little rain, clean airChicago4
February49Ffreezing, a little rain, clean air42Ffreezing, a little rain, clean airChicago7
March64Ccold, a little rain, clean air55Dcold, a little rain, clean airChicago9
April71Bcool, rainy, clean air67Ccold, rainyChicago4
May83Anice, rainy, muggy air83Anice, a little rainTie0
June86Awarm, rainy90Swarm, a little rainToronto4
July76Bhot, rainy, muggy air79Bhot, rainyTie3
August81Ahot, a little rain86Awarm, a little rainToronto5
September91Swarm, a little rain, clean air93Snice, a little rain, clean airTie2
October73Bnice, rainy, clean air73Bcool, a little rain, clean airTie0
November62Ccold, a little rain, clean air60Ccold, a little rain, clean airTie2
December46Fcold, a little rain, clean air44Ffreezing, a little rain, clean airTie2

A month is a tie when the two are within 3 points. The widest gap is March (64 vs 55). Tap a month for that month's temperature, rain, humidity and air quality side by side.