Lyman, in Wyoming, United States, is home to roughly 2,100 people in the Mountain Time Zone at 41.3°N latitude.
In 2025, Lyman recorded an average annual temperature of 47°F. The hottest temperatures reached 92°F in August; the coolest were -11°F in February. Total precipitation for the year was 9 inches, with the wettest month being October. Snowfall for the year totaled approximately 10 inches.
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