Miller County Climate
Miller County, Arkansas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
64.0°F
Annual Precip
48.9"
Annual Snowfall
—
Extreme Heat Days
83
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,811
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Miller County
Climate Verdict
Miller County has a warm, averaging 64.0°F year-round, moderately wet with 48.9 inches of annual precipitation, significant summer heat with 82.6 days annually above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 44.6°F. summers are hot, with July averaging 82.5°F. The 38°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Miller County is 3.0°F warmer than the Arkansas statewide average of 61.0°F, it is somewhat drier than average for Arkansas, the county experiences 18.484999999999985 more extreme heat days than the state average.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.