US Geography / US Weather / Massachusetts Weather / Williamstown |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 28° | 31° | 40° | 54° | 66° | 74° | 78° | 77° | 68° | 58° | 45° | 34° |
| Avg. Low | 7° | 8° | 18° | 31° | 41° | 48° | 54° | 52° | 45° | 35° | 27° | 15° |
| Mean | 18° | 20° | 30° | 42° | 54° | 62° | 67° | 65° | 58° | 47° | 37° | 24° |
| Avg. Precip. | 3.5 in | 3.4 in | 3.9 in | 4.3 in | 4.6 in | 4.5 in | 4.1 in | 4.3 in | 3.8 in | 3.8 in | 4.6 in | 4.3 in |
Degrees in Fahrenheit
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