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Weather & Climate
Dillon, Montana, United States
Overview
Climate data and monthly weather averages for Dillon.
Key Metrics
Annual Avg
2.4°C
Summer Avg
15.1°C
Winter Avg
-10.1°C
Record High
35.5°C
Record Low
-35°C
Annual Precipitation
506.1 mm
Avg Humidity
71%
Summer Humidity
54%
Winter Humidity
92%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 4.7° | -10.6° | -35° | 33.2 | 94% | 54 | 44 |
| Feb | 8.9° | -9.5° | -33.8° | 34.4 | 92% | 77 | 40.5 |
| Mar | 16.3° | -3.7° | -28.6° | 40.3 | 81% | 123 | 43.1 |
| Apr | 22° | 1.2° | -18.4° | 54.9 | 68% | 152 | 44.8 |
| May | 27.9° | 6.7° | -8.6° | 64.5 | 64% | 184 | 40.6 |
| Jun | 30.8° | 11.9° | -4.5° | 64.2 | 61% | 203 | 44.5 |
| Jul | 35.5° | 17.5° | 0.1° | 31 | 51% | 225 | 39.6 |
| Aug | 32.7° | 16° | -1.4° | 31.6 | 50% | 192 | 35 |
| Sep | 30.8° | 10.6° | -7.1° | 37.8 | 54% | 140 | 40.1 |
| Oct | 23.5° | 2.7° | -18.9° | 39.4 | 66% | 93 | 38.2 |
| Nov | 15.8° | -4.1° | -32.2° | 36 | 78% | 55 | 39.1 |
| Dec | 5.5° | -10.2° | -33.9° | 38.8 | 91% | 42 | 46.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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