Jackson County Climate
Jackson County, Mississippi
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.5°F
Annual Precip
67.2"
Annual Snowfall
0.1"
Extreme Heat Days
60
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,341
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Jackson County
Climate Verdict
Jackson County has a warm, averaging 66.5°F year-round, very wet conditions receiving 67.2 inches of precipitation annually, occasional hot days — 59.7 per year above 90°F, light snow averaging 0.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 50.3°F. summers are hot, with July averaging 80.8°F. The 31°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Jackson County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Jackson County closely matches the Mississippi statewide average temperature of 63.9°F, it is also noticeably wetter, receiving 7.7 inches more precipitation than the state average.
Climate Profile
About Jackson County Weather
Warm Coastal Living on the Gulf
Jackson County averages 66.5°F, which is significantly higher than the national median temperature. The maritime influence of the Gulf of Mexico creates a consistently warm and humid environment.
One of Mississippi's Warmest Counties
The county’s 66.5°F average outpaces the state average of 63.9°F by a wide margin. It ranks as a top-tier warm zone due to its southern coastal position.
Leading the State in Precipitation
Jackson receives a massive 67.2 inches of rain annually, far more than the state average of 59.6 inches. This makes it one of the wettest counties in the entire region.
Tropical Summers and Snowless Winters
July averages 80.8°F with high humidity, though the ocean breeze keeps extreme heat days to 60 per year. Winters are very mild at 52.2°F and snowfall is practically nonexistent at 0.1 inches.
Managing High Humidity and Rain
Residents must invest in high-capacity drainage and moisture control to manage 67.2 inches of annual rain. The mild winters require only light layers, as freezing temperatures are rare.
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.