Cheyenne County Climate
Cheyenne County, Colorado
Avg Annual Temp
51.3°F
Annual Precip
16.4"
Annual Snowfall
18.9"
Extreme Heat Days
58.51666666666667
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cheyenne County Weather
Cheyenne: Warmer Than the National Average
At 51.3°F, Cheyenne County runs nearly 2 degrees warmer than the U.S. median annual temperature of 49.5°F, putting it in the warmer tier of American counties. The county receives 16.4 inches of rain annually—just slightly above the national median of 15.2 inches. This semi-arid climate classification is typical of the High Plains region.
Cheyenne Ranks Warmest in Colorado
Cheyenne County's 51.3°F average makes it the warmest county in Colorado, sitting 5.3 degrees above the state average of 46.0°F. This outsized warmth reflects its location at lower elevation on the eastern plains, far from Colorado's cooler mountain regions. The county is also slightly drier than the state average of 16.0 inches of precipitation.
East Plains Climate at Its Warmest
Cheyenne County is noticeably warmer than neighboring Kit Carson County to the south and Lincoln County to the north, which sit 2–3 degrees cooler due to elevation differences. Its 75.4°F July average matches the warmth of Crowley County to the southwest, making both eastern plains counties the summer heat leaders in Colorado. Compared to Kiowa County's similar semi-arid character, Cheyenne experiences slightly more extreme temperature swings.
Hot Summers, Moderate Snow
Cheyenne County experiences 59 days per year above 90°F—a significant number that rises throughout summer, with July reaching 75.4°F and winter dropping to just 29.9°F in January. Annual snowfall averages 18.9 inches, modest for Colorado but concentrated in winter months from November through March. The county's summer-to-winter swing of nearly 46 degrees makes seasonal preparation essential.
Plan for Heat and Wind
Residents need robust air conditioning for the 59+ annual days above 90°F, plus effective insulation for winter lows near 30°F and strong wind protection typical of the plains. Outdoor activities peak in spring and fall when temperatures sit in the comfortable 55–65°F range; summer recreation is best scheduled for early morning or evening. Stock up on supplies before winter snow events, as the county's relatively light annual snowfall can still create temporary isolation on rural roads.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.