Henry County Climate
Henry County, Ohio
Avg Annual Temp
50.2°F
Annual Precip
37.3"
Annual Snowfall
24.7"
Extreme Heat Days
15.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Henry County Weather
A Classic Midwestern Continental Climate
Henry County averages 50.2°F annually, placing it slightly below the national median in the humid continental zone. The region experiences four distinct seasons typical of the American heartland.
Cooler and Drier Than the Ohio Average
The county's 50.2°F average temperature sits over a degree lower than the Ohio state average of 51.5°F. It also receives 37.3 inches of annual precipitation, making it notably drier than the 41.2-inch state benchmark.
More Manageable Snowfall Than Eastern Neighbors
Henry County sees 24.7 inches of snow annually, which is significantly less than the 32.7 inches recorded in Huron County to the east. This difference makes winter road maintenance slightly easier for Henry residents.
Deep Winter Chills and Sharp Summer Peaks
January brings average lows of 25.1°F, while July pushes the mercury to a 73.5°F average. Residents encounter roughly 15 extreme heat days per year where temperatures exceed 90°F.
Prepare for Wide Thermal Swings
Homeowners should ensure HVAC systems are rated for both sub-freezing winters and the 15 annual days of 90°F heat. Reliable snow removal gear is essential for the 24.7 inches of expected annual 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.