SeasonMapBaltimore vs Chicago: which is better, month by month
Baltimore beats Chicago in 8 of 12 months — its lead peaks in January (57 vs 40) — 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.
Baltimore vs Chicago — all 12 months
| Month | Baltimore | Chicago | Winner | Gap |
|---|---|---|---|---|
| January | 57Dcold, a little rain, clean air | 40Ffreezing, a little rain, clean air | Baltimore | 17 |
| February | 65Ccold, rainy, clean air | 49Ffreezing, a little rain, clean air | Baltimore | 16 |
| March | 73Bcool, rainy, clean air | 64Ccold, a little rain, clean air | Baltimore | 9 |
| April | 84Anice, rainy, clean air | 71Bcool, rainy, clean air | Baltimore | 13 |
| May | 90Swarm, rainy | 83Anice, rainy, muggy air | Baltimore | 7 |
| June | 79Bhot, rainy | 86Awarm, rainy | Chicago | 7 |
| July | 64Csweltering, rainy, muggy air | 76Bhot, rainy, muggy air | Chicago | 12 |
| August | 70Bsweltering, rainy, muggy air | 81Ahot, a little rain | Chicago | 11 |
| September | 79Bhot, rainy, clean air | 91Swarm, a little rain, clean air | Chicago | 12 |
| October | 87Anice, a little rain, clean air | 73Bnice, rainy, clean air | Baltimore | 14 |
| November | 71Bcool, a little rain, clean air | 62Ccold, a little rain, clean air | Baltimore | 9 |
| December | 58Dcold, rainy, clean air | 46Fcold, a little rain, clean air | Baltimore | 12 |
A month is a tie when the two are within 3 points. The widest gap is January (57 vs 40). Tap a month for that month's temperature, rain, humidity and air quality side by side.