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Weather & Climate
Foster County, North Dakota, United States
Overview
Climate data and monthly weather averages for Foster County.
Key Metrics
Annual Avg
5.5°C
Summer Avg
20.6°C
Winter Avg
-10.4°C
Record High
41°C
Record Low
-40.6°C
Annual Precipitation
522.7 mm
Avg Humidity
70%
Summer Humidity
61%
Winter Humidity
86%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 8.8° | -12° | -40.6° | 12.7 | 89% | 55 | 58.3 |
| Feb | 16.3° | -10.4° | -35.1° | 11.5 | 84% | 84 | 70.5 |
| Mar | 25° | -1.9° | -28.9° | 24.8 | 73% | 124 | 71.8 |
| Apr | 30.6° | 5.7° | -15.8° | 36 | 62% | 147 | 57.2 |
| May | 33.4° | 12.7° | -6° | 80.6 | 62% | 177 | 59.7 |
| Jun | 40.4° | 18.7° | 3.1° | 89.7 | 64% | 186 | 56.2 |
| Jul | 41° | 22.3° | 6.5° | 76.6 | 59% | 203 | 62.4 |
| Aug | 38.7° | 20.7° | 3.9° | 58.6 | 59% | 169 | 54.5 |
| Sep | 38° | 15.2° | -2.2° | 57 | 62% | 121 | 54.3 |
| Oct | 29.4° | 6° | -11.2° | 42.5 | 69% | 79 | 64.6 |
| Nov | 20.4° | -1.5° | -22.3° | 15 | 76% | 47 | 65.4 |
| Dec | 9.4° | -8.9° | -33.3° | 17.7 | 86% | 38 | 57 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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