Chicago vs Detroit: which is better, month by month
Detroit beats Chicago in 2 of 12 months — its lead peaks in May (87 vs 83) — and they are within 3 points in the other 10 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 vs Detroit — all 12 months
| Month | Chicago | Detroit | Winner | Gap |
|---|---|---|---|---|
| January | 40Ffreezing, a little rain, clean air | 39Ffreezing, a little rain, clean air | Tie | 1 |
| February | 49Ffreezing, a little rain, clean air | 49Ffreezing, a little rain, clean air | Tie | 0 |
| March | 64Ccold, a little rain, clean air | 62Ccold, rainy, clean air | Tie | 2 |
| April | 71Bcool, rainy, clean air | 72Bcool, rainy, clean air | Tie | 1 |
| May | 83Anice, rainy, muggy air | 87Anice, rainy | Detroit | 4 |
| June | 86Awarm, rainy | 84Awarm, rainy | Tie | 2 |
| July | 76Bhot, rainy, muggy air | 74Bhot, rainy | Tie | 2 |
| August | 81Ahot, a little rain | 78Bhot, rainy | Tie | 3 |
| September | 91Swarm, a little rain, clean air | 90Swarm, rainy, clean air | Tie | 1 |
| October | 73Bnice, rainy, clean air | 77Bcool, a little rain, clean air | Detroit | 4 |
| November | 62Ccold, a little rain, clean air | 60Ccold, a little rain, clean air | Tie | 2 |
| December | 46Fcold, a little rain, clean air | 46Fcold, a little rain, clean air | Tie | 0 |
A month is a tie when the two are within 3 points. The widest gap is May (83 vs 87). Tap a month for that month's temperature, rain, humidity and air quality side by side.