Miller County Climate
Miller County, Arkansas
Avg Annual Temp
64.0°F
Annual Precip
48.9"
Annual Snowfall
—
Extreme Heat Days
82.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Miller County Weather
Consistently hot and humid subtropical climate
Miller County is a hot spot, averaging 64.0°F annually, which is nearly ten degrees warmer than the national median. This climate stays warm year-round with almost no recorded snowfall.
Leading the state in high temperatures
Miller ranks among the hottest counties in Arkansas, exceeding the state average by three full degrees. It represents the warmest edge of the state near the Texas and Louisiana borders.
Hotter than the rest of Arkansas
At 64.0°F, Miller is significantly hotter than its northern neighbor Logan at 60.6°F. It endures 83 days of extreme heat, far outpacing the 60-day average found in central Arkansas.
Eighty-three days of extreme heat
Summers are intense with an 81.1°F average and nearly three months of temperatures above 90°F. Winter remains the warmest in the region at 46.4°F, and snowfall is exceptionally rare.
Invest in high-efficiency cooling
High-efficiency air conditioning is a necessity here to combat the 83 days of extreme heat. Winter preparation is minimal, but the 48.9 inches of rain require good drainage systems for the property.
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.