Fannin County Climate
Fannin County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
63.5°F
Annual Precip
45.2"
Annual Snowfall
1.3"
Extreme Heat Days
78
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
5,764
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Fannin County
Climate Verdict
Fannin County has a warm, averaging 63.5°F year-round, moderately wet with 45.2 inches of annual precipitation, significant summer heat with 78.4 days annually above 90°F, light snow averaging 1.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 42.8°F. summers are hot, with July averaging 83.5°F. The 41°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
Fannin County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably wetter, receiving 13.4 inches more precipitation than the state average, the county experiences 26.44187338267581 fewer extreme heat days than the state average.
Climate Profile
About Fannin County Weather
Wet and warm northern Texas
Fannin County averages 63.5°F annually, which is well above the national median but cooler than much of Texas. It is a high-rainfall area, receiving 45.2 inches of precipitation annually.
One of the state's wettest spots
Fannin County is significantly wetter than the Texas state average, recording 45.2 inches of rain compared to 31.9 inches. At 63.5°F, it is also about 2 degrees cooler than the state average.
Rainier than Ellis County
Fannin County receives 45.2 inches of rain, nearly 5 inches more than Ellis County. It is also the coolest in this group, with an annual average of 63.5°F compared to Ellis's 65.7°F.
Moderate heat and wet winters
The county experiences 78 days of extreme heat, fewer than most neighboring regions, though July still averages 83.5°F. January is the coldest in the region at 42.8°F, accompanied by 1.3 inches of annual snow.
Planning for heavy rainfall
With 45.2 inches of annual rain, superior roof maintenance and gutter systems are essential. Residents should also prepare for 78 days of 90°F+ heat, even though the overall climate is cooler than the state average.
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.