Cheyenne County Climate
Cheyenne County, Colorado
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.3°F
Annual Precip
16.4"
Annual Snowfall
18.9"
Extreme Heat Days
59
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,164
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Cheyenne County
Climate Verdict
Cheyenne County has a mild, with an average annual temperature of 51.3°F, semi-arid conditions with only 16.4 inches of annual precipitation, occasional hot days — 58.51666666666667 per year above 90°F, light snow averaging 18.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 29.9°F. summers are warm — July averages 75.4°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Cheyenne County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Cheyenne County is 5.5°F warmer than the Colorado statewide average of 45.9°F, the county experiences 31.900632401108606 more extreme heat days than the state average.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.