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Weather & Climate
Chouteau County, Montana, United States
Overview
Climate data and monthly weather averages for Chouteau County.
Key Metrics
Annual Avg
7.9°C
Summer Avg
20.6°C
Winter Avg
-3.8°C
Record High
40.8°C
Record Low
-31.8°C
Annual Precipitation
402.4 mm
Avg Humidity
62%
Summer Humidity
49%
Winter Humidity
76%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 14.1° | -4.1° | -31.8° | 18.9 | 78% | 47 | 66.9 |
| Feb | 17.8° | -3.5° | -28.6° | 17.4 | 73% | 71 | 69.4 |
| Mar | 26.5° | 1.8° | -31° | 20.8 | 66% | 113 | 65.4 |
| Apr | 30.3° | 6.8° | -12.7° | 43.5 | 59% | 144 | 60.2 |
| May | 33.5° | 12.8° | -5.6° | 64.2 | 55% | 180 | 64.1 |
| Jun | 38.1° | 17.8° | 2.4° | 71.7 | 54% | 199 | 57.7 |
| Jul | 40.8° | 23° | 7.4° | 29.4 | 46% | 223 | 48.1 |
| Aug | 38.9° | 21.1° | 4.9° | 32.6 | 47% | 183 | 53.3 |
| Sep | 35.6° | 15° | -5.8° | 36.3 | 54% | 128 | 54.6 |
| Oct | 29.4° | 7.3° | -13.1° | 30.4 | 63% | 85 | 64.3 |
| Nov | 21.4° | 1.1° | -23° | 19.5 | 70% | 49 | 69.6 |
| Dec | 12.3° | -3.9° | -31.1° | 17.7 | 76% | 36 | 62.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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