Ross County Climate
Ross County, Ohio
Avg Annual Temp
53.5°F
Annual Precip
—
Annual Snowfall
—
Extreme Heat Days
21.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Precipitation data coming soon
Seasonal Overview
National Comparison
Data pending
Climate Profile
About Ross County Weather
Ross County Matches the National Temperature Median
With an average annual temperature of 53.5°F, Ross County aligns closely with the United States median. This humid continental region experiences warmer overall conditions than much of the Great Lakes area.
Warmer Than the Average Ohio County
Ross County is notably warmer than the state average of 51.5°F. Its 53.5°F annual mean places it among the warmer southern half of Ohio's 88 counties.
A Warm Bridge Between North and South
Ross County’s 53.5°F average is warmer than northern neighbors like Richland at 50.5°F. However, it remains slightly cooler than Scioto County further south, which averages 54.9°F.
Extended Heat and Moderate Winter Temps
The county faces 22 extreme heat days annually where temperatures top 90°F. Winter stays slightly milder than the state average, with a January mean of 30.1°F.
Preparing for Significant Summer Heat Loads
Residents should invest in robust air conditioning systems to navigate the three weeks of 90-degree weather. While snowfall data is limited, the 32.8°F winter average suggests a mix of freezing and thawing cycles.
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.