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Weather & Climate
West Yellowstone, Montana, United States
Overview
Available climate summaries for West Yellowstone. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
1.6°C
Summer Avg
14.9°C
Winter Avg
-11°C
Record High
35.4°C
Record Low
-36.1°C
Annual Precipitation
774.6 mm
Avg Humidity
77%
Summer Humidity
57%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 0.2° | -11.4° | -34.3° | 76 | 95% | 49 | 30.6 |
| Feb | 0.3° | -10.3° | -36.1° | 67.2 | 95% | 72 | 28.8 |
| Mar | 12.5° | -5.5° | -28.1° | 71 | 95% | 114 | 26.7 |
| Apr | 20.4° | -0.4° | -21.6° | 76.5 | 83% | 151 | 26.2 |
| May | 26° | 6° | -12.3° | 76.6 | 73% | 184 | 28.9 |
| Jun | 30.2° | 11.3° | -4.4° | 68.1 | 67% | 206 | 24.4 |
| Jul | 35.4° | 17.2° | 0.1° | 35.6 | 54% | 231 | 26 |
| Aug | 34.5° | 16.1° | -1.8° | 36.6 | 49% | 196 | 25.2 |
| Sep | 30.4° | 10.5° | -6.5° | 48 | 55% | 143 | 26.5 |
| Oct | 24.7° | 2.3° | -19.1° | 62.6 | 69% | 93 | 24.7 |
| Nov | 14.2° | -5.3° | -29.4° | 70.8 | 88% | 53 | 25.9 |
| Dec | 2.7° | -11.4° | -34.9° | 85.6 | 95% | 39 | 26.8 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
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