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Weather & Climate
Fergus County, Montana, United States
Overview
Climate data and monthly weather averages for Fergus County.
Key Metrics
Annual Avg
7.5°C
Summer Avg
20°C
Winter Avg
-3.8°C
Record High
39.8°C
Record Low
-33.6°C
Annual Precipitation
490 mm
Avg Humidity
63%
Summer Humidity
51%
Winter Humidity
75%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 16.3° | -3.8° | -33.6° | 21.1 | 77% | 48 | 69.1 |
| Feb | 16.7° | -3.8° | -28.9° | 21 | 73% | 73 | 71.3 |
| Mar | 25.3° | 1.5° | -31.9° | 25.7 | 66% | 115 | 64.8 |
| Apr | 29.4° | 6.1° | -13.3° | 51.6 | 61% | 144 | 66.8 |
| May | 32.3° | 11.7° | -5.8° | 82.1 | 59% | 181 | 71.1 |
| Jun | 37.1° | 16.9° | 0.3° | 81.9 | 58% | 198 | 55.3 |
| Jul | 39.7° | 22.3° | 6.8° | 39.4 | 48% | 220 | 60.1 |
| Aug | 39.8° | 20.7° | 4° | 41.9 | 48% | 182 | 62.6 |
| Sep | 34.9° | 14.6° | -6.3° | 41.4 | 54% | 128 | 54.3 |
| Oct | 32.2° | 6.9° | -15.3° | 39.7 | 64% | 85 | 64 |
| Nov | 21.7° | 1° | -22.6° | 23.1 | 69% | 51 | 68.9 |
| Dec | 13.3° | -3.8° | -30.2° | 21.1 | 76% | 37 | 69.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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