Harrison County Climate
Harrison County, Ohio
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
50.8°F
Annual Precip
42.6"
Annual Snowfall
25.8"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,080
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Harrison County
Climate Verdict
Harrison County has a mild, with an average annual temperature of 50.8°F, moderately wet with 42.6 inches of annual precipitation, rare extreme heat with only 6.3 days above 90°F annually, moderate snowfall of 25.8 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 27.0°F. summers are warm — July averages 72.4°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Harrison County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Harrison County closely matches the Ohio statewide average temperature of 51.5°F.
Climate Profile
About Harrison County Weather
Cool Appalachian Air and Stable Temps
Harrison County averages 50.8°F, making it cooler than the national median. The county's elevation and geography contribute to a temperate humid continental climate.
A Refreshingly Cool Ohio Locale
Harrison is cooler than the 51.5°F state average, providing relief from the heat found in southern Ohio. It receives 42.6 inches of precipitation, slightly more than the state norm.
Milder Summers than Nearby Guernsey
Harrison has only 6 days of extreme heat, compared to 18 in neighboring Guernsey. However, it deals with more annual snowfall, averaging 25.8 inches.
Consistent Cold and Temperate Summers
July averages a mild 72.4°F, which is cool for the region. Winter temperatures average 29.6°F, bringing a steady 25.8 inches of snow throughout the season.
Focus on Winter Heating Efficiency
Because extreme heat is rare here, residents can focus more on heating efficiency and winter tires. The 25.8 inches of annual snow requires reliable clearing equipment for rural roads.
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.