Otero County Climate
Otero County, Colorado
Avg Annual Temp
53.5°F
Annual Precip
12.9"
Annual Snowfall
23.2"
Extreme Heat Days
79.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Otero County Weather
Otero is Colorado's hottest, driest county
At 53.5°F annually, Otero County runs 6.0°F warmer than the U.S. median of 47.5°F, marking it as distinctly hot for Colorado. Its 12.9 inches of annual precipitation rank it among America's driest counties, creating a harsh high-desert climate.
Hottest county in Colorado by far
Otero's 53.5°F average ranks it the warmest county in Colorado, a full 7.5°F above the state average of 46.0°F. No other Colorado county approaches its extreme heat profile, placing it in a climate class of its own.
Dramatically hotter than all regional peers
Otero (53.5°F) towers 5.3°F above Morgan County (49.0°F) to its north and 9.0°F above Ouray County (44.5°F) to its west. Its southeastern plains position creates a uniquely hostile climate within Colorado's otherwise moderate network.
Punishing heat, rare snow, perpetual dryness
Otero experiences 79 days of 90°F-plus heat annually—nearly triple Morgan County's total—with summer averages of 75.1°F. Winter highs barely dip below freezing at 32.4°F average, and just 23.2 inches of annual snowfall leaves the landscape exposed to intense summer radiation year-round.
Industrial-grade cooling and water conservation
With 79 extreme heat days and only 13 inches of rain yearly, residents need commercial-strength air conditioning and aggressive water conservation strategies. Drought-resistant xeriscaping is non-negotiable; outdoor activities require dawn or dusk timing, and reflective roofing or cooling systems become cost-saving priorities.
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.