Dallam County Climate
Dallam County, Texas
Avg Annual Temp
56.4°F
Annual Precip
16.6"
Annual Snowfall
12.7"
Extreme Heat Days
80.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Dallam County Weather
Mirroring the National Temperature Median
Dallam County averages 56.4°F annually, which is very close to the national median temperature. It is one of the few places in Texas that mirrors a more standard U.S. climate profile.
The Coldest Reach of Texas
It is the coldest county in this set, sitting nearly 10 degrees below the Texas state average of 65.5°F. Its Panhandle location creates a distinct climate compared to the rest of the state.
Extreme Snowfall for the Region
It receives a substantial 12.7 inches of snow, which is vastly more than any other county in this group. Rainfall is sparse, however, totaling only 16.6 inches per year.
Harsh Winters and Milder Summers
Winters are harsh for Texas, with a January average of 34.6°F and significant snowfall. Even summers are milder, with 80 days over 90°F compared to the 100+ days typical elsewhere.
Prepare for Snow and Cold
Prioritize home insulation and snow removal equipment, as the 12.7 inches of snow is a real factor. Ensure HVAC systems can handle temperatures that average 36.5°F throughout the winter.
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.