SeasonMapCharleston vs Chicago: which is better, month by month
Charleston beats Chicago in 7 of 12 months — its lead peaks in January (74 vs 40) — while Chicago wins June to September; they are within 3 points in May.
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.
Charleston vs Chicago — all 12 months
| Month | Charleston | Chicago | Winner | Gap |
|---|---|---|---|---|
| January | 74Bcool, a little rain, clean air | 40Ffreezing, a little rain, clean air | Charleston | 34 |
| February | 79Bnice, a little rain, clean air | 49Ffreezing, a little rain, clean air | Charleston | 30 |
| March | 86Anice, a little rain | 64Ccold, a little rain, clean air | Charleston | 22 |
| April | 90Snice, rainy, clean air | 71Bcool, rainy, clean air | Charleston | 19 |
| May | 80Ahot, rainy, clean air | 83Anice, rainy, muggy air | Tie | 3 |
| June | 66Chot, rainy, muggy air | 86Awarm, rainy | Chicago | 20 |
| July | 58Dsweltering, rainy, muggy air | 76Bhot, rainy, muggy air | Chicago | 18 |
| August | 59Dsweltering, soaked, muggy air | 81Ahot, a little rain | Chicago | 22 |
| September | 69Chot, rainy, clean air | 91Swarm, a little rain, clean air | Chicago | 22 |
| October | 85Awarm, a little rain, clean air | 73Bnice, rainy, clean air | Charleston | 12 |
| November | 86Anice, a little rain, clean air | 62Ccold, a little rain, clean air | Charleston | 24 |
| December | 72Bcool, rainy, clean air | 46Fcold, a little rain, clean air | Charleston | 26 |
A month is a tie when the two are within 3 points. The widest gap is January (74 vs 40). Tap a month for that month's temperature, rain, humidity and air quality side by side.