Doña Ana County Climate
Doña Ana County, New Mexico
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
61.3°F
Annual Precip
10.0"
Annual Snowfall
1.4"
Extreme Heat Days
103
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
4,977
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Doña Ana County
Climate Verdict
Doña Ana County has a warm, averaging 61.3°F year-round, arid conditions receiving just 10.0 inches of precipitation annually, significant summer heat with 103.275 days annually above 90°F, light snow averaging 1.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 41.8°F. summers are hot, with July averaging 81.0°F. The 39°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Doña Ana County is 6.4°F warmer than the New Mexico statewide average of 54.8°F, it is somewhat drier than average for New Mexico, the county experiences 45.36814454064454 more extreme heat days than the state average.
Climate Profile
About Doña Ana County Weather
Southern Heat in Doña Ana
Doña Ana County averages 61.3°F annually, placing it among the warmest counties in the nation. This desert region is very dry, with only 10.0 inches of annual precipitation.
The Warmest Corner of the State
With a 61.3°F annual average, this county is significantly warmer than the New Mexico average of 54.8°F. It is a leader in extreme heat days for the state.
Minimal Rainfall in the Chihuahuan Desert
The county receives just 10.0 inches of precipitation, well below the state average of 14.0 inches. It is one of the driest inhabited regions in New Mexico.
A Century of Triple-Digit Days
Summer dominates with a staggering 103 days reaching 90°F or higher. Winters are very mild, with only 1.4 inches of snow and a January average of 41.8°F.
Sun Protection and Water Conservation
Extreme heat safety and high-performance cooling are essential for the 79.6°F summer average. Winter gear is rarely needed as snowfall is almost non-existent.
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.