Oldham County Climate
Oldham County, Texas
Avg Annual Temp
56.8°F
Annual Precip
18.0"
Annual Snowfall
7.7"
Extreme Heat Days
73.75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Oldham County Weather
A Climate Aligned with the Median
Oldham County averages 56.8°F annually, making it one of the few Texas counties close to the national median temperature. It represents the high, dry, and cool western edge of the state.
Coldest Territory in the Lone Star State
The county is nearly 9 degrees cooler than the Texas average of 65.5°F. It is also quite dry, receiving only 18.0 inches of rain compared to the state average of 31.9 inches.
Arid and Snowy High Plains
Oldham receives significantly less rain than most of Texas but compensates with 7.7 inches of annual snowfall. Its 18 inches of precipitation is less than half of what East Texas counties receive.
Brisk Winters and Balanced Summers
The county sees 74 extreme heat days, with July temperatures peaking at a relatively mild 78.1°F. Winter is cold and snowy, with a January average of 36.2°F and 7.7 inches of snow.
Prepare for the Texas Chill
Residents should focus on home insulation and heating to manage the 37.5°F winter average. Because annual rainfall is only 18.0 inches, water conservation is a critical lifestyle consideration.
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.