Duval County Climate
Duval County, Florida
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
70.0°F
Annual Precip
50.8"
Annual Snowfall
0.0"
Extreme Heat Days
74
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9b
Minimum winter temperature range for plant survival
7,440
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Duval County
Climate Verdict
Duval County has a warm, averaging 70.0°F year-round, moderately wet with 50.8 inches of annual precipitation, significant summer heat with 74.18333333333334 days annually above 90°F, virtually no measurable snowfall. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are exceptionally mild, with January averaging 55.2°F. summers are hot, with July averaging 82.6°F. The climate is remarkably stable year-round, with only a 27°F difference between January and July.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Duval County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Duval County closely matches the Florida statewide average temperature of 71.0°F, it is somewhat drier than average for Florida, the county experiences 17.83338742066013 fewer extreme heat days than the state average.
Climate Profile
About Duval County Weather
Northeast Florida's Temperate Edge
Duval County maintains a 70.0°F annual average, which is warm by national standards but moderate for the Southeast. The region avoids the heavy snowfall found in the northern U.S. entirely.
Just Below State Averages
Duval is slightly cooler than the 71.1°F Florida state average. Its coastal location in the northeast corner provides a bit more seasonal variety than southern counties.
Comparing Coastal Hubs
Duval is cooler than Flagler County to the south but warmer than Columbia County inland. The annual precipitation of 50.8 inches is lower than the state average of 54.8 inches.
Hot Summers, Brisk Winters
Summer averages reach 81.8°F with 74 days topping 90°F. Winter temperatures dip to a brisk average of 57.2°F, though snow remains nonexistent.
Manage the Summer Humidity
With 74 extreme heat days, efficient air conditioning is a standard requirement for Jacksonville residents. Outdoor enthusiasts should track the 50.8 inches of rain to plan activities around summer storms.
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.