Adair County Climate
Adair County, Missouri
Avg Annual Temp
51.6°F
Annual Precip
40.9"
Annual Snowfall
19.0"
Extreme Heat Days
23.05
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Adair County Weather
Cooler Than the National Median
Adair County averages 51.6°F annually, which is notably cooler than the national median temperature. The county receives 40.9 inches of precipitation, placing it slightly below the Missouri state average.
A Northern Missouri Temperature Profile
The county is significantly cooler than the Missouri average of 54.9°F. Its northern location keeps it over three degrees below the state's typical annual temperature.
Warmer Than Its Western Neighbors
At 51.6°F, Adair is slightly warmer than Atchison County's 51.1°F average. It experiences more moderate annual conditions compared to the colder northwest corner of the state.
Substantial Snow and Mild Summers
Winters bring a significant 19.0 inches of snow and a chilly January average of 25.1°F. Summers remain manageable with 23 days of extreme heat reaching 90°F or higher.
Preparing for Winter Conditions
Residents should invest in reliable snow removal equipment to handle the nearly 20 inches of annual snowfall. High-efficiency heating systems are essential for winters that average just 28.2°F.
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.