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Weather & Climate
Deer Lodge County, Montana, United States
Overview
Climate data and monthly weather averages for Deer Lodge County.
Key Metrics
Annual Avg
1.4°C
Summer Avg
12.9°C
Winter Avg
-9.1°C
Record High
35°C
Record Low
-37°C
Annual Precipitation
636.4 mm
Avg Humidity
78%
Summer Humidity
63%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 6.6° | -8.9° | -37° | 42.8 | 95% | 47 | 31.2 |
| Feb | 7.7° | -9.1° | -36.3° | 46.5 | 95% | 70 | 34.6 |
| Mar | 15.3° | -4.7° | -31.3° | 52.7 | 89% | 114 | 27.1 |
| Apr | 20.4° | -0.6° | -18.8° | 64.2 | 78% | 145 | 28.6 |
| May | 26° | 4.9° | -15.6° | 81.8 | 73% | 177 | 26.1 |
| Jun | 30.3° | 9.5° | -5.5° | 84.3 | 71% | 195 | 23.4 |
| Jul | 35° | 15° | -2.1° | 35.3 | 61% | 225 | 20.8 |
| Aug | 31.7° | 14.1° | -1.8° | 39.7 | 57% | 187 | 22.4 |
| Sep | 28.2° | 8.8° | -9.8° | 45.3 | 61% | 134 | 22.5 |
| Oct | 23.8° | 1.5° | -21.1° | 47.7 | 73% | 86 | 26.9 |
| Nov | 16° | -4.5° | -29.6° | 47.4 | 83% | 49 | 29.2 |
| Dec | 5.5° | -9.2° | -37° | 48.7 | 94% | 36 | 27.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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