Boone County Climate
Boone County, Missouri
Avg Annual Temp
56.1°F
Annual Precip
42.2"
Annual Snowfall
16.9"
Extreme Heat Days
38
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Boone County Weather
Warmer than the National Median
Boone County averages 56.1°F annually, making it warmer than the typical U.S. county. This central Missouri hub experiences a humid continental climate with distinct seasonal shifts.
Central Missouri Heat
The county's average temperature of 56.1°F sits 1.2 degrees above the Missouri state average of 54.9°F. It receives 42.2 inches of rain annually, which is slightly less than the state's 43.8-inch norm.
A Typical Central Missouri Climate
Boone is warmer on average than northern neighbors like Buchanan County. Its 42.2 inches of annual precipitation aligns closely with other counties in the central corridor.
Steamy Summers and Snowy Winters
Residents face 38 days of extreme heat above 90°F during summers that average 76.9°F. Winters bring a manageable 16.9 inches of snow and a 34.0°F average temperature.
Prepare for Five Weeks of Heat
High-efficiency cooling systems are essential to handle over a month of 90-degree days. Standard snow removal gear is sufficient for the modest 16.9-inch seasonal snowfall.
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.