Blanco County Climate
Blanco County, Texas
Avg Annual Temp
66.3°F
Annual Precip
33.0"
Annual Snowfall
0.1"
Extreme Heat Days
103.45
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Blanco County Weather
Temperate but distinctly southern warmth
Blanco County averages 66.3°F annually, which is about 12 degrees warmer than the national median. This reflects a climate dominated by long, warm seasons.
Consistent with Texas state averages
The county's 66.3°F average temperature is nearly identical to the Texas state average of 65.5°F. It experiences the standard heat and mild winters expected in the region.
Slightly wetter than state norms
Blanco receives 33.0 inches of precipitation annually, just above the state average of 31.9 inches. This helps maintain the scenic Hill Country landscapes that define the area.
Over 100 days of heat
Summer temperatures average 81.8°F, including 103 days that reach 90°F or higher. Winters are mild with a 49.9°F average and negligible snowfall of 0.1 inches.
Focus on summer sun protection
Plan for 103 days of extreme heat by installing solar shades or planting trees. Keep a light jacket for January's 48.1°F average, but leave the heavy snow gear behind.
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.