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Best Time for Southern New England: Mystic to Provincetown
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Sweet spot: May, July, August. Computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.
💡 Good to know
- Mansion lawns, Cliff Walk breezes and Cape beaches all in season — P-town's harbor life runs full tilt and whale boats work Stellwagen Bank daily.
- The Cape empties to dune grass and oyster festivals — off-season New England at its moody, affordable best.
| Month | Low | High | Rain | Daylight | |
|---|---|---|---|---|---|
| January | −3.0°C | 2.9°C | 89 mm | 9.3 h | ❄ |
| February | −2.8°C | 3.3°C | 86 mm | 10.4 h | ❄ |
| March | −0.3°C | 5.9°C | 112 mm | 11.7 h | ❄ |
| April | 4.1°C | 10.8°C | 108 mm | 13.1 h | |
| May | 9.2°C | 15.9°C | 89 mm | 14.3 h | |
| June | 14.5°C | 20.8°C | 102 mm | 15.0 h | |
| July | 18.7°C | 24.9°C | 87 mm | 14.7 h | |
| August | 18.8°C | 25.0°C | 85 mm | 13.7 h | |
| September | 15.6°C | 22.0°C | 99 mm | 12.3 h | |
| October | 10.3°C | 16.4°C | 121 mm | 10.9 h | |
| November | 5.0°C | 11.0°C | 102 mm | 9.6 h | |
| December | 0.5°C | 6.1°C | 119 mm | 9.0 h | ❄ |