SeasonMapChicago vs San Antonio: which is better, month by month
San Antonio beats Chicago in 7 of 12 months — its lead peaks in January (76 vs 40) — while Chicago wins May 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.
Chicago vs San Antonio — all 12 months
| Month | Chicago | San Antonio | Winner | Gap |
|---|---|---|---|---|
| January | 40Ffreezing, a little rain, clean air | 76Bnice, a little rain, clean air | San Antonio | 36 |
| February | 49Ffreezing, a little rain, clean air | 79Bnice, a little rain, clean air | San Antonio | 30 |
| March | 64Ccold, a little rain, clean air | 90Swarm, a little rain, clean air | San Antonio | 26 |
| April | 71Bcool, rainy, clean air | 85Awarm, a little rain, clean air | San Antonio | 14 |
| May | 83Anice, rainy, muggy air | 70Bsweltering, rainy | Chicago | 13 |
| June | 86Awarm, rainy | 61Csweltering, a little rain, clean air | Chicago | 25 |
| July | 76Bhot, rainy, muggy air | 56Dsweltering, a little rain, clean air | Chicago | 20 |
| August | 81Ahot, a little rain | 50Dsweltering, a little rain, clean air | Chicago | 31 |
| September | 91Swarm, a little rain, clean air | 64Csweltering, rainy, clean air | Chicago | 27 |
| October | 73Bnice, rainy, clean air | 83Ahot, a little rain, clean air | San Antonio | 10 |
| November | 62Ccold, a little rain, clean air | 87Anice, a little rain, clean air | San Antonio | 25 |
| December | 46Fcold, a little rain, clean air | 80Anice, a little rain, clean air | San Antonio | 34 |
A month is a tie when the two are within 3 points. The widest gap is January (40 vs 76). Tap a month for that month's temperature, rain, humidity and air quality side by side.