Franklin County Climate
Franklin County, Missouri
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
55.8°F
Annual Precip
44.1"
Annual Snowfall
10.4"
Extreme Heat Days
45
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
4,140
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Franklin County
Climate Verdict
Franklin County has a mild, with an average annual temperature of 55.8°F, moderately wet with 44.1 inches of annual precipitation, occasional hot days — 44.85 per year above 90°F, light snow averaging 10.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.6°F. summers are warm — July averages 78.3°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Franklin County closely matches the Missouri statewide average temperature of 54.9°F.
Climate Profile
About Franklin County Weather
Warmer than the national average
Franklin County’s 55.8°F annual average is higher than the national median, reflecting its mid-latitude position. The climate is characterized by significant seasonal swings and high humidity.
Topping the Missouri temperature average
The county is about one degree warmer than the Missouri state average of 54.9°F. Precipitation is also slightly above the state norm, totaling 44.1 inches annually.
Hotter summers than nearby Dent
Franklin experiences 45 extreme heat days, significantly more than the 33 days recorded in Dent County. It also sees much more snow, averaging 10.4 inches annually.
Sweltering Julys and snowy Januaries
July averages 78.3°F, leading to 45 days of 90-degree heat. Winter brings a solid 10.4 inches of snow and a January average of 31.6°F.
Prepare for extreme summer heat
With 45 days of extreme heat, a robust cooling system and sun protection are necessary. Keep a snow shovel and salt ready for the 10.4 inches of typical winter accumulation.
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.