Miller County Climate
Miller County, Missouri
Avg Annual Temp
56.5°F
Annual Precip
43.5"
Annual Snowfall
5.9"
Extreme Heat Days
36.233333333333334
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Miller County Weather
Warm Central Missouri Hub
Miller County averages 56.5°F annually, which is warmer than the national median for U.S. counties. The county sees 43.4 inches of rain, aligning closely with the Missouri state average. This climate provides a balance of warmth and sufficient moisture for the local landscape.
Exceeding the Missouri Average
The county's average temperature of 56.5°F sits 1.6 degrees above the Missouri state average of 54.9°F. Miller ranks as a warmer central county, influenced by its location near the northern Ozarks. It typically avoids the extreme cold found in the state's northern tier.
A Mirror to Maries County
Miller County shares an identical annual average temperature of 56.5°F with neighboring Maries County. However, Miller sees slightly more extreme heat with 36 days over 90°F compared to Maries' 33. It also records 5.9 inches of annual snowfall, providing a clearer winter picture.
High Heat and Quick Snows
Summer is a dominant season with 36 days of extreme heat and a July average of 78.6°F. Winters are relatively mild, featuring a January average of 32.2°F and only 5.9 inches of snow. Most snow melts quickly, as the average winter temperature stays above freezing at 35.2°F.
Manage Peak Summer Heat
With 36 days reaching 90°F or higher, residents should invest in efficient cooling and shaded outdoor spaces. The 5.9 inches of annual snowfall require only light maintenance gear. Property owners should prepare for the 43.4 inches of rain with proper drainage solutions.
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.