SeasonMapDetroit vs San Francisco: which is better, month by month
San Francisco beats Detroit in 11 of 12 months — its lead peaks in January (68 vs 39) — and 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.
Detroit vs San Francisco — all 12 months
| Month | Detroit | San Francisco | Winner | Gap |
|---|---|---|---|---|
| January | 39Ffreezing, a little rain, clean air | 68Ccool, rainy, clean air | San Francisco | 29 |
| February | 49Ffreezing, a little rain, clean air | 75Bcool, rainy, muggy air | San Francisco | 26 |
| March | 62Ccold, rainy, clean air | 76Bcool, rainy, clean air | San Francisco | 14 |
| April | 72Bcool, rainy, clean air | 85Anice, a little rain, clean air | San Francisco | 13 |
| May | 87Anice, rainy | 88Anice, dry, clean air | Tie | 1 |
| June | 84Awarm, rainy | 92Snice, dry, clean air | San Francisco | 8 |
| July | 74Bhot, rainy | 93Snice, dry, clean air | San Francisco | 19 |
| August | 78Bhot, rainy | 95Snice, dry, clean air | San Francisco | 17 |
| September | 90Swarm, rainy, clean air | 96Snice, dry, clean air | San Francisco | 6 |
| October | 77Bcool, a little rain, clean air | 90Snice, dry, clean air | San Francisco | 13 |
| November | 60Ccold, a little rain, clean air | 80Anice, a little rain, clean air | San Francisco | 20 |
| December | 46Fcold, a little rain, clean air | 67Ccool, rainy, clean air | San Francisco | 21 |
A month is a tie when the two are within 3 points. The widest gap is January (39 vs 68). Tap a month for that month's temperature, rain, humidity and air quality side by side.