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Weather & Climate
Williston, North Dakota, United States
Overview
Climate data and monthly weather averages for Williston.
Key Metrics
Annual Avg
6.7°C
Summer Avg
21.1°C
Winter Avg
-7.8°C
Record High
41.9°C
Record Low
-35.4°C
Annual Precipitation
418.6 mm
Avg Humidity
66%
Summer Humidity
54%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.1° | -8.7° | -34.7° | 13.6 | 85% | 52 | 62.5 |
| Feb | 18.2° | -7.7° | -35.4° | 12 | 79% | 79 | 73.8 |
| Mar | 25.4° | -0.3° | -30.1° | 19.5 | 68% | 123 | 67.1 |
| Apr | 32.2° | 6.3° | -17.4° | 33.3 | 59% | 146 | 68.7 |
| May | 34.9° | 13° | -5.2° | 69.1 | 56% | 182 | 64.2 |
| Jun | 39.3° | 18.8° | 2.7° | 75.6 | 57% | 192 | 55.2 |
| Jul | 41.9° | 23.2° | 8.1° | 53.9 | 52% | 209 | 73.6 |
| Aug | 41.6° | 21.4° | 5.5° | 41.2 | 52% | 172 | 59 |
| Sep | 37.2° | 15.3° | -2.8° | 42.6 | 57% | 121 | 54.1 |
| Oct | 31.2° | 6.4° | -14.4° | 27.9 | 65% | 78 | 63.8 |
| Nov | 21.5° | -0.6° | -23.1° | 14.1 | 74% | 46 | 67.8 |
| Dec | 11.6° | -6.9° | -33.8° | 15.8 | 83% | 36 | 59.1 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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