St. Bernard Parish Climate
St. Bernard Parish, Louisiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
68.6°F
Annual Precip
—
Annual Snowfall
—
Extreme Heat Days
55
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9b
Minimum winter temperature range for plant survival
6,979
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: St. Bernard Parish
Climate Verdict
St. Bernard Parish has a warm, averaging 68.6°F year-round, occasional hot days — 54.5 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 52.8°F. summers are hot, with July averaging 81.8°F. The climate is remarkably stable year-round, with only a 29°F difference between January and July. January is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for St. Bernard Parish. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
St. Bernard Parish closely matches the Louisiana statewide average temperature of 67.0°F, the county experiences 29.166346153846106 fewer extreme heat days than the state average.
Climate Profile
About St. Bernard Parish Weather
Southern Coastal Warmth and Humidity
St. Bernard Parish averages 68.6°F annually, which is significantly higher than the national median. Its location near the Gulf of Mexico drives a humid and consistently warm climate.
Among the Warmest in Louisiana
The parish's 68.6°F average temperature is higher than the state average of 67.0°F. This makes it one of the warmer coastal regions in Louisiana.
Cooler Summers Than Inland Parishes
St. Bernard experiences only 55 extreme heat days annually, far fewer than inland parishes like Richland which see over 80. The coastal influence helps moderate summer temperature spikes.
Mild Winters with No Snow
Winter temperatures are very mild with a January average of 52.8°F, and snowfall is virtually non-existent. Summers are long and humid, averaging 81.3°F during the peak months of June through August.
Humidity Control and Light Clothing
Dehumidifiers and light, breathable clothing are essential for the damp, coastal air. Residents should also focus on hurricane preparedness given the parish's vulnerability to Gulf weather patterns.
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.