SeasonMapPhiladelphia vs St. Louis: which is better, month by month
Philadelphia and St. Louis split the year 1–1 — Philadelphia wins May, St. Louis wins September, 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.
Philadelphia vs St. Louis — all 12 months
| Month | Philadelphia | St. Louis | Winner | Gap |
|---|---|---|---|---|
| January | 53Dcold, rainy, clean air | 50Dcold, a little rain, clean air | Tie | 3 |
| February | 60Ccold, rainy | 62Ccold, a little rain, clean air | Tie | 2 |
| March | 69Ccool, rainy, clean air | 69Ccool, rainy, clean air | Tie | 0 |
| April | 82Anice, rainy, clean air | 80Anice, rainy, clean air | Tie | 2 |
| May | 91Swarm, rainy | 87Awarm, rainy | Philadelphia | 4 |
| June | 79Bhot, rainy | 76Bsweltering, rainy | Tie | 3 |
| July | 65Csweltering, rainy | 66Csweltering, rainy | Tie | 1 |
| August | 72Bhot, rainy | 73Bsweltering, rainy | Tie | 1 |
| September | 81Awarm, rainy, clean air | 85Ahot, rainy, clean air | St. Louis | 4 |
| October | 85Anice, a little rain, clean air | 84Anice, a little rain, clean air | Tie | 1 |
| November | 71Bcool, a little rain, clean air | 68Ccool, a little rain, clean air | Tie | 3 |
| December | 56Dcold, rainy, clean air | 59Dcold, a little rain, clean air | Tie | 3 |
A month is a tie when the two are within 3 points. The widest gap is May (91 vs 87). Tap a month for that month's temperature, rain, humidity and air quality side by side.