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Weather & Climate
Thompson Falls, Montana, United States
Overview
Climate data and monthly weather averages for Thompson Falls.
Key Metrics
Annual Avg
4.5°C
Summer Avg
15.7°C
Winter Avg
-6°C
Record High
38.3°C
Record Low
-31.2°C
Annual Precipitation
965.7 mm
Avg Humidity
78%
Summer Humidity
62%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 8.4° | -6° | -29.4° | 123.1 | 95% | 35 | 24.4 |
| Feb | 11.1° | -5.6° | -31.2° | 91 | 95% | 56 | 23.2 |
| Mar | 17.2° | -1.8° | -27.8° | 113.1 | 92% | 99 | 22.3 |
| Apr | 24.6° | 2.7° | -13.8° | 79.8 | 81% | 136 | 24.3 |
| May | 28.5° | 8.4° | -7° | 78.7 | 74% | 173 | 25.9 |
| Jun | 35.5° | 12.1° | -2° | 73.8 | 73% | 186 | 18.1 |
| Jul | 37° | 17.5° | 1.4° | 20.2 | 60% | 225 | 20.6 |
| Aug | 38.3° | 17.5° | 2.4° | 27.6 | 53% | 185 | 17.3 |
| Sep | 32.6° | 12.4° | -7.8° | 36.9 | 57% | 126 | 21.7 |
| Oct | 27° | 4.6° | -20° | 84.3 | 74% | 77 | 23 |
| Nov | 15.3° | -1.7° | -26.1° | 119.4 | 90% | 38 | 27.5 |
| Dec | 6.5° | -6.4° | -29.4° | 117.8 | 95% | 28 | 25.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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