Clark County Climate
Clark County, Ohio
Avg Annual Temp
51.5°F
Annual Precip
41.1"
Annual Snowfall
18.7"
Extreme Heat Days
18.25
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Clark County Weather
Typical Temperate Weather Patterns
Clark County’s annual average of 51.5°F aligns closely with the national median for the temperate Midwest. The region experiences a standard humid continental cycle of warm summers and cold winters.
Matching the Ohio Baseline
The county’s 51.5°F average perfectly matches the Ohio state average. Its 41.1 inches of annual precipitation is nearly identical to the state average of 41.2 inches, making it a climate bellwether for the region.
Stable Central Ohio Climate
Clark is notably cooler than Butler County to the southwest, which sees 14 more extreme heat days per year. It shares a very similar precipitation and temperature profile with its neighbor, Champaign County.
Steady Rainfall and Moderate Snow
The county sees 18.7 inches of snow annually, balanced by a modest 18 days of heat reaching 90°F or higher. July averages stay comfortable at 73.3°F, while January dips to a cold 27.3°F.
Prepare for Moderate Snowfall
Residents should maintain standard snow removal tools for the nearly 19 inches of annual accumulation. A dual-focus on summer insulation and winter heating ensures comfort through the county's balanced seasonal extremes.
Frequently Asked Questions
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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.