SeasonMapKillington vs Sun Valley: which is better, month by month
Sun Valley beats Killington in 3 of 12 months — its lead peaks in January (86 vs 80) — while Killington wins March to April; they are within 3 points in May to November.
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.
Killington vs Sun Valley — all 12 months
| Month | Killington | Sun Valley | Winner | Gap |
|---|---|---|---|---|
| January | 80Afreezing, rainy, clean air | 86Afreezing, a little rain, clean air | Sun Valley | 6 |
| February | 87Afreezing, rainy, clean air | 91Sfreezing, a little rain, clean air | Sun Valley | 4 |
| March | 92Sfreezing, rainy, clean air | 83Acold, a little rain, muggy air | Killington | 9 |
| April | 65Ccold, rainy, clean air | 58Dcold, a little rain, reliable snow | Killington | 7 |
| May | 32Fcool, rainy, clean air | 34Fcool, a little rain, reliable snow | Tie | 2 |
| June | 17Fnice, rainy, clean air | 20Fnice, dry, clean air | Tie | 3 |
| July | 12Fnice, soaked, clean air | 12Fwarm, dry, clean air | Tie | 0 |
| August | 14Fnice, rainy, clean air | 14Fwarm, dry, clean air | Tie | 0 |
| September | 21Fcool, rainy, clean air | 18Fnice, dry, clean air | Tie | 3 |
| October | 43Fcold, rainy, clean air | 45Fcold, a little rain, clean air | Tie | 2 |
| November | 75Bfreezing, rainy, clean air | 72Bcold, a little rain, clean air | Tie | 3 |
| December | 83Afreezing, rainy, clean air | 88Afreezing, a little rain, clean air | Sun Valley | 5 |
A month is a tie when the two are within 3 points. The widest gap is March (92 vs 83). Tap a month for that month's temperature, rain, humidity and air quality side by side.