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Weather & Climate
Sweetwater County, Wyoming, United States
Overview
Climate data and monthly weather averages for Sweetwater County.
Key Metrics
Annual Avg
6.5°C
Summer Avg
19.8°C
Winter Avg
-5.6°C
Record High
36.8°C
Record Low
-27.5°C
Annual Precipitation
207.7 mm
Avg Humidity
55%
Summer Humidity
37%
Winter Humidity
75%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 10.5° | -6.3° | -27.1° | 10.2 | 79% | 65 | 68.9 |
| Feb | 14.7° | -4.4° | -27.5° | 10.6 | 71% | 82 | 73.5 |
| Mar | 21.6° | 0.7° | -18.7° | 15.5 | 60% | 135 | 72 |
| Apr | 25.6° | 4.5° | -13° | 23.1 | 54% | 172 | 67.6 |
| May | 32.5° | 10.3° | -7.6° | 31.6 | 49% | 209 | 62.6 |
| Jun | 34.8° | 17.2° | -2° | 18.3 | 38% | 231 | 59.3 |
| Jul | 36.8° | 22.1° | 5.4° | 14 | 35% | 227 | 49.5 |
| Aug | 35.4° | 20.1° | 2.3° | 17.4 | 37% | 200 | 53.1 |
| Sep | 33.3° | 14.4° | -4.8° | 22.5 | 42% | 161 | 78.7 |
| Oct | 25.4° | 5.9° | -18.6° | 19.5 | 54% | 117 | 63.1 |
| Nov | 18.5° | -0.8° | -20.9° | 13.5 | 64% | 74 | 62.9 |
| Dec | 9.2° | -6.1° | -24.7° | 11.5 | 76% | 55 | 64.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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