Jefferson Davis Parish Climate
Jefferson Davis Parish, Louisiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
67.8°F
Annual Precip
63.5"
Annual Snowfall
0.1"
Extreme Heat Days
73
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,804
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Jefferson Davis Parish
Climate Verdict
Jefferson Davis Parish has a warm, averaging 67.8°F year-round, very wet conditions receiving 63.5 inches of precipitation annually, significant summer heat with 72.6 days annually 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 50.9°F. summers are hot, with July averaging 81.9°F. The 31°F seasonal variation provides noticeable but manageable change. January is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Jefferson Davis Parish. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Jefferson Davis Parish closely matches the Louisiana statewide average temperature of 67.0°F, it is somewhat wetter than average for Louisiana.
Climate Profile
About Jefferson Davis Parish Weather
Deep South Warmth and High Rainfall
The average annual temperature of 67.8°F is significantly warmer than the national median, placing it in a humid subtropical zone. The parish also sees 63.5 inches of rain, nearly double the national average for annual precipitation.
Slightly Warmer than State Average
At 67.8°F, the parish is slightly warmer than the Louisiana state average of 67.0°F. It also ranks as wetter than the state average, recording 63.5 inches of rainfall compared to the statewide 60.8 inches.
Cooler than Neighboring Lafayette
Jefferson Davis Parish is slightly cooler than neighboring Lafayette Parish, which averages 68.8°F. Both parishes share high precipitation levels, with Jefferson Davis receiving 63.5 inches of annual rain.
Sweltering Summers and Damp Winters
The area endures 73 days of extreme heat above 90°F, with July averages reaching 81.9°F. Winters are very mild, with a January average of 50.9°F and negligible snowfall of just 0.1 inches.
Invest in High-Efficiency Cooling
With 73 extreme heat days, a reliable HVAC system is essential for safety and comfort. Residents should also prepare for 63.5 inches of rain with proper flood insurance and heavy-duty rain gear.
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.