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Weather & Climate
Carter County, Montana, United States
Overview
Climate data and monthly weather averages for Carter County.
Key Metrics
Annual Avg
8°C
Summer Avg
21.5°C
Winter Avg
-4.3°C
Record High
42.6°C
Record Low
-27.5°C
Annual Precipitation
429.3 mm
Avg Humidity
62%
Summer Humidity
52%
Winter Humidity
74%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 16.9° | -4.5° | -26.6° | 10.2 | 75% | 58 | 65.6 |
| Feb | 20.6° | -4.3° | -26.7° | 14 | 72% | 80 | 75.9 |
| Mar | 27.2° | 1.6° | -27.5° | 23.9 | 64% | 120 | 65.2 |
| Apr | 30.6° | 6.5° | -13.1° | 43.2 | 61% | 148 | 67.9 |
| May | 35.4° | 12.5° | -7.4° | 78.7 | 59% | 184 | 67.4 |
| Jun | 41.6° | 18.8° | 0.5° | 70.8 | 56% | 208 | 55.3 |
| Jul | 42.6° | 23.8° | 7.7° | 50.2 | 50% | 225 | 52.9 |
| Aug | 40.4° | 21.9° | 4.9° | 46.2 | 51% | 189 | 66.6 |
| Sep | 37.5° | 16.1° | -2.1° | 37.5 | 53% | 137 | 60.7 |
| Oct | 32.7° | 7.3° | -15.8° | 32.6 | 62% | 92 | 62.5 |
| Nov | 24° | 1.1° | -19.2° | 10.5 | 67% | 59 | 70.3 |
| Dec | 18.6° | -4.2° | -26.8° | 11.5 | 75% | 45 | 59.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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