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Weather & Climate
Garfield County, Montana, United States
Overview
Climate data and monthly weather averages for Garfield County.
Key Metrics
Annual Avg
8.3°C
Summer Avg
21.8°C
Winter Avg
-4.6°C
Record High
43.5°C
Record Low
-33.3°C
Annual Precipitation
391.9 mm
Avg Humidity
62%
Summer Humidity
50%
Winter Humidity
76%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 15.5° | -4.9° | -31.3° | 12.7 | 77% | 45 | 67.4 |
| Feb | 18.6° | -4.5° | -26.7° | 12.9 | 73% | 68 | 78.1 |
| Mar | 25.3° | 1.7° | -33.3° | 16.1 | 65% | 111 | 70.2 |
| Apr | 31.7° | 7.4° | -12.8° | 36 | 58% | 147 | 66.1 |
| May | 35° | 13.4° | -4.4° | 76.3 | 56% | 185 | 76.5 |
| Jun | 38.9° | 18.9° | 2.8° | 69.3 | 55% | 202 | 60.9 |
| Jul | 43.5° | 24.1° | 9.3° | 39.1 | 47% | 220 | 57.5 |
| Aug | 39.6° | 22.4° | 6.4° | 38.4 | 47% | 182 | 66.4 |
| Sep | 37° | 16.1° | -1.6° | 33.6 | 52% | 128 | 56.5 |
| Oct | 32.5° | 7.7° | -15.3° | 30.7 | 62% | 86 | 67.4 |
| Nov | 23.2° | 1.2° | -21.4° | 13.5 | 69% | 50 | 64.7 |
| Dec | 15.3° | -4.3° | -29.3° | 13.3 | 77% | 35 | 65.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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