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Weather & Climate
Williston, Vermont, United States
Overview
Climate data and monthly weather averages for Williston.
Key Metrics
Annual Avg
6.6°C
Summer Avg
19.7°C
Winter Avg
-7.3°C
Record High
38.4°C
Record Low
-33.6°C
Annual Precipitation
1062 mm
Avg Humidity
82%
Summer Humidity
77%
Winter Humidity
91%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.1° | -9° | -33.6° | 55.5 | 92% | 45 | 35.1 |
| Feb | 18.3° | -7.8° | -33.3° | 57.4 | 91% | 63 | 41.4 |
| Mar | 23.8° | -2.2° | -29.6° | 67 | 85% | 106 | 36.6 |
| Apr | 27.4° | 5.4° | -10.6° | 85.8 | 78% | 134 | 30.2 |
| May | 30.2° | 12.9° | -2.3° | 102.3 | 77% | 162 | 31.3 |
| Jun | 32.5° | 18° | 2.8° | 127.8 | 77% | 168 | 19.4 |
| Jul | 38.4° | 21° | 8° | 109.4 | 77% | 177 | 21.3 |
| Aug | 32.1° | 20.1° | 7.6° | 99.8 | 76% | 157 | 28.7 |
| Sep | 34.3° | 16.1° | 0.7° | 86.4 | 77% | 122 | 27.2 |
| Oct | 26° | 8.6° | -4.5° | 112.8 | 81% | 75 | 30.2 |
| Nov | 20.2° | 1.6° | -20.2° | 75 | 85% | 46 | 29.4 |
| Dec | 16.1° | -5.2° | -30.5° | 82.8 | 90% | 34 | 31.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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