Adair County Climate
Adair County, Missouri
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.6°F
Annual Precip
40.9"
Annual Snowfall
19.0"
Extreme Heat Days
23
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,435
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Adair County
Climate Verdict
Adair County has a mild, with an average annual temperature of 51.6°F, moderately wet with 40.9 inches of annual precipitation, occasional hot days — 23.05 per year above 90°F, light snow averaging 19.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.1°F. summers are warm — July averages 75.5°F. Residents experience a substantial 50°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Adair County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Adair County is 3.3°F cooler than the Missouri statewide average of 54.9°F, it is somewhat drier than average for Missouri.
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 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.