Roane County Climate
Roane County, Tennessee
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
58.0°F
Annual Precip
59.6"
Annual Snowfall
1.9"
Extreme Heat Days
35
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7b
Minimum winter temperature range for plant survival
4,265
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Roane County
Climate Verdict
Roane County has a mild, with an average annual temperature of 58.0°F, very wet conditions receiving 59.6 inches of precipitation annually, occasional hot days — 34.599999999999994 per year above 90°F, light snow averaging 1.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 37.2°F. summers are warm — July averages 77.3°F. The 40°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Roane County closely matches the Tennessee statewide average temperature of 58.0°F, it is somewhat wetter than average for Tennessee.
Climate Profile
About Roane County Weather
A Moderate Southern Profile
Roane County’s 58.0°F average temperature sits right at the national median for a humid subtropical zone. The climate is characterized by warm summers and short, cool winters.
Perfectly Average for Tennessee
At 58.0°F, Roane is almost exactly in line with the Tennessee state average of 58.1°F. It serves as a benchmark for the state's weather patterns.
Comparing Valley Heat Trends
Roane experiences 35 days of extreme heat, slightly more than Rhea’s 31 days. It receives a healthy 59.6 inches of rain, keeping the landscape green year-round.
Warm Summers with Rare Snow
July temperatures average 77.3°F, contributing to five weeks of 90-degree weather. Snow remains a rarity, averaging just 1.9 inches per year.
Manage Humidity and Summer Heat
Use dehumidifiers to stay comfortable during the rainy 59-inch seasons. Plan for high energy usage in the summer when temperatures frequently exceed 90°F.
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.