Macon County Climate
Macon County, Missouri
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
53.9°F
Annual Precip
41.9"
Annual Snowfall
—
Extreme Heat Days
36
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,921
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Macon County
Climate Verdict
Macon County has a mild, with an average annual temperature of 53.9°F, moderately wet with 41.9 inches of annual precipitation, occasional hot days — 35.7 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 27.1°F. summers are warm — July averages 77.8°F. Residents experience a substantial 51°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Macon County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Macon County closely matches the Missouri statewide average temperature of 54.9°F.
Climate Profile
About Macon County Weather
Stable National Temperature Average
Macon is very close to the national median with an annual average of 53.9°F. This creates a balanced, though often volatile, Midwestern climate.
Tracking Closely with Missouri Norms
It sits just one degree below the state average temperature of 54.9°F. Its 41.9 inches of rain tracks slightly behind the Missouri average of 43.8 inches.
Regional Variation in Summer Heat
Macon records 36 extreme heat days, which is higher than Linn's 25 but lower than Lincoln's 42. Local snowfall data is limited, though neighbors suggest moderate accumulation.
Warm Summers and Chilly Winters
Summers are warm with 36 days reaching 90°F and a July average of 77.8°F. Winter temperatures dip to a 30.4°F average, creating a sharp seasonal contrast.
Cooling Solutions for Hot Summers
Focus on cooling solutions for the 36 extreme heat days that define the summer season. Residents should also prepare for winter lows that average around 30.4°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.