Franklin County Climate
Franklin County, Missouri
Avg Annual Temp
55.8°F
Annual Precip
44.1"
Annual Snowfall
10.4"
Extreme Heat Days
44.85
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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.
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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.