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Climate in Cheyenne, Wyoming: Monthly Weather Averages

By the AverageClimate Editorial Team · Last updated: October 2026

Cheyenne sits at 6,128 feet above sea level, and its climate, as recorded at the Cheyenne, WY station, runs to a yearly mean of 46.9°F. The warmest month is July, averaging 70.1°F with typical highs of 84.1°F; the coldest is December, averaging 28.7°F with lows around 18.1°F. Across a normal year the city receives 15.4 in of precipitation and 62.9 in of snow. The full month-by-month picture below comes from the official 1991–2020 U.S. Climate Normals — the 30-year averages the National Weather Service itself uses — so it describes the Cheyenne climate you should actually plan around, whether you are timing a visit, weighing a move, or just settling an argument about which month is best.

Cheyenne climate month by month

The table below is the complete 1991–2020 normals profile for Cheyenne: average high, average low and mean temperature, rainfall, and snowfall for every month. Read down the Mean column to feel the year's rhythm — Cheyenne's temperature range runs from 28.7°F in December to 70.1°F in July.

How to read the colors:below freezingcoldcoolmildwarmhot. Bands are colored by each cell's own temperature, so a whole year reads at a glance.

Cheyenne through the seasons

Winter in Cheyenne averages highs of 39.3–40.6°F and lows of 18.1–18.4°F, a seasonal mean of 29.1°F. The three months together bring 1.4 in of precipitation — about 9% of the city's yearly total — with February the wettest of the three at 0.52 in. Snowfall averages 24.1 in over the season, most of it in February (9.0 in). Average temperatures sit below freezing, so this is the heart of the heating season: expect snow-covered ground, icy mornings, and short, cold days as the local norm rather than the exception.

Spring in Cheyenne averages highs of 49.1–64.4°F and lows of 25.1–40.2°F, a seasonal mean of 44.1°F. The three months together bring 5.2 in of precipitation — about 34% of the city's yearly total — with May the wettest of the three at 2.44 in. Snowfall averages 24.4 in over the season, most of it in April (11.3 in). The season is a transition: the average temperature climbs 15.2°F from March to May, and by late spring Cheyenne is firmly into mild territory.

Summer in Cheyenne averages highs of 76.7–84.1°F and lows of 49.4–56.1°F, a seasonal mean of 67.1°F. The three months together bring 5.8 in of precipitation — about 38% of the city's yearly total — with June the wettest of the three at 2.16 in. It is a warm, usable summer: afternoons are hot enough for swimming and lake or coast time, while evenings usually cool off comfortably.

Fall in Cheyenne averages highs of 47.5–73.3°F and lows of 24.7–45.8°F, a seasonal mean of 47.4°F. The three months together bring 3.1 in of precipitation — about 20% of the city's yearly total — with September the wettest of the three at 1.47 in. Snowfall averages 14.4 in over the season, most of it in November (7.5 in). Temperatures ease off through the season — the monthly mean drops 23.5°F from September to November — and fall is when Cheyenne's weather turns crisp and dry, with the first freezes arriving by November.

Best and worst months to visit Cheyenne

Ranking every month by its normals — mild mean temperatures score best, heavy rain and snow count against — the most comfortable months to visit Cheyenne are:

JuneJulyAugust

June leads the list: average highs of 76.7°F, lows of 49.4°F, and 2.16 in of rain, with snow a non-factor at 0.0 in. The other picks, July and August, offer the same balance in Cheyenne's mild stretch of the year. At the other end, December is usually the month to avoid — deep-winter cold, with a mean temperature of 28.7°F and 0.48 in of precipitation plus 8.8 in of snow.

How Cheyenne compares

Across the 114 cities in our dataset, the typical city averages 57.8°F for the year and 35.7 in of precipitation. Cheyenne runs 10.9°F cooler than that typical city and drier by 20.2 in a year, ranking #101 of 114 for annual warmth and #96 of 114 for precipitation (wettest first). Its year-round temperature swing — warmest month minus coldest — is 41.4°F, which puts it in the moderate, clearly seasonal camp.

Planning notes for Cheyenne

For anyone relocating: average overnight lows drop below freezing in 6 months (January, February, March, April, November, December), so heating, winter tires, and pipe protection are real seasonal concerns; highs reach the 80s on average in 2 months, but 90°F average highs never arrive; days and nights differ by 24.6°F on average — a big desert-style swing that rewards dressing in layers year-round; 4 months of the year average between 55°F and 80°F, the band most people find comfortable without heating or cooling. Those four facts, all straight from the normals table above, shape everything from a Cheyenne wardrobe to its utility bills.

Cheyenne climate FAQ

Source: 1991–2020 U.S. Climate Normals, NOAA National Centers for Environmental Information (NCEI) — ncei.noaa.gov. Station: Cheyenne, WY (USW00024018), elevation 6,128 ft. Figures checked October 2026.