Callaway County Climate
Callaway County, Missouri
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
54.8°F
Annual Precip
42.0"
Annual Snowfall
18.9"
Extreme Heat Days
35
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,942
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Callaway County
Climate Verdict
Callaway County has a mild, with an average annual temperature of 54.8°F, moderately wet with 42.0 inches of annual precipitation, occasional hot days — 35.05 per year above 90°F, light snow averaging 18.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 30.0°F. summers are warm — July averages 77.2°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Callaway County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Callaway County closely matches the Missouri statewide average temperature of 54.9°F.
Climate Profile
About Callaway County Weather
Classic Continental Climate Hub
Callaway County mirrors the national median almost exactly with an average temperature of 54.8°F. It experiences the distinct seasonal shifts of the humid continental climate type.
Right on the State Average
The county sits almost perfectly at the Missouri average of 54.9°F. Its 42 inches of annual rain is also very close to the state benchmark of 43.8 inches.
High Snowfall for the Region
While it matches the temperature of neighboring Cass County, Callaway sees significantly more snow. Its 18.9 inches of annual snow is among the highest for its neighbors.
Snowy Winters and Five-Week Heats
Winters are active with 18.9 inches of snow and a 33.0°F average. Summers bring 35 days of extreme heat and a July peak of 77.2°F.
Invest in a Reliable Snowblower
Homeowners should prepare for higher-than-average snowfall for this region. Cooling systems should be ready to handle about five weeks of extreme heat above 90°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.