SeasonMapCharleston vs Washington: which is better, month by month
Charleston beats Washington in 6 of 12 months — its lead peaks in February (79 vs 63) — while Washington wins May to September; they are within 3 points in October.
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 Washington — all 12 months
| Month | Charleston | Washington | Winner | Gap |
|---|---|---|---|---|
| January | 74Bcool, a little rain, clean air | 59Dcold, a little rain, clean air | Charleston | 15 |
| February | 79Bnice, a little rain, clean air | 63Ccold, a little rain, clean air | Charleston | 16 |
| March | 86Anice, a little rain | 73Bcool, rainy, clean air | Charleston | 13 |
| April | 90Snice, rainy, clean air | 83Anice, rainy, clean air | Charleston | 7 |
| May | 80Ahot, rainy, clean air | 87Awarm, rainy | Washington | 7 |
| June | 66Chot, rainy, muggy air | 78Bhot, rainy | Washington | 12 |
| July | 58Dsweltering, rainy, muggy air | 65Csweltering, soaked | Washington | 7 |
| August | 59Dsweltering, soaked, muggy air | 70Bsweltering, rainy | Washington | 11 |
| September | 69Chot, rainy, clean air | 80Ahot, rainy, clean air | Washington | 11 |
| October | 85Awarm, a little rain, clean air | 85Anice, rainy, clean air | Tie | 0 |
| November | 86Anice, a little rain, clean air | 71Bcool, a little rain, clean air | Charleston | 15 |
| December | 72Bcool, rainy, clean air | 58Dcold, rainy, clean air | Charleston | 14 |
A month is a tie when the two are within 3 points. The widest gap is February (79 vs 63). Tap a month for that month's temperature, rain, humidity and air quality side by side.