Delta County Climate
Delta County, Texas
Avg Annual Temp
64.8°F
Annual Precip
47.9"
Annual Snowfall
—
Extreme Heat Days
92.45
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
DryWet
3.3"
3.5"
4.4"
4.2"
4.6"
4.2"
3.2"
3.0"
3.1"
5.3"
4.5"
4.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Seasonal Overview
National Comparison
Warmer than 87% of US counties
Wetter than 68% of US counties
More seasonal variation than 33% of US counties
Frequently Asked Questions
What is the average temperature in Delta County?
The average annual temperature in Delta County, TX is 64.8°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Delta County get?
Delta County receives an average of 47.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Delta County get in summer?
The average summer temperature (June-August) in Delta County is 82.5°F. The county experiences an average of 92.45 days per year above 90°F.
How cold are winters in Delta County?
The average winter temperature (December-February) in Delta County is 46.5°F. January, typically the coldest month, averages 44.3°F.
Track your own weather in Delta County
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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.