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Weather & Climate
Lyman, Wyoming, United States
Overview
Climate data and monthly weather averages for Lyman.
Key Metrics
Annual Avg
7.1°C
Summer Avg
20.1°C
Winter Avg
-4.7°C
Record High
37.2°C
Record Low
-27.9°C
Annual Precipitation
310.3 mm
Avg Humidity
54%
Summer Humidity
38%
Winter Humidity
72%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 11.9° | -5.3° | -27.9° | 19.2 | 75% | 70 | 64.5 |
| Feb | 15.1° | -3.5° | -25.4° | 20.7 | 69% | 89 | 66.2 |
| Mar | 22.1° | 1.4° | -18.3° | 24.8 | 60% | 136 | 67.1 |
| Apr | 26.6° | 5.1° | -11.3° | 33.6 | 54% | 169 | 58.6 |
| May | 32.7° | 10.8° | -6.9° | 41.5 | 50% | 206 | 65.6 |
| Jun | 35.1° | 17.4° | -1.9° | 24 | 40% | 232 | 51.3 |
| Jul | 37.2° | 22.4° | 5.2° | 18 | 36% | 228 | 46.2 |
| Aug | 35.6° | 20.6° | 2.6° | 23.6 | 37% | 201 | 47.9 |
| Sep | 33.6° | 14.9° | -4.7° | 30.3 | 42% | 160 | 59.6 |
| Oct | 26.5° | 6.9° | -17.8° | 27.9 | 51% | 116 | 55.8 |
| Nov | 20.1° | 0.3° | -23.1° | 21.9 | 62% | 73 | 59.8 |
| Dec | 13.6° | -5.2° | -25.4° | 24.8 | 73% | 58 | 60.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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