St. Charles Parish Climate
St. Charles Parish, Louisiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
69.9°F
Annual Precip
66.0"
Annual Snowfall
—
Extreme Heat Days
—
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9b
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: St. Charles Parish
Climate Verdict
Climate data for St. Charles Parish is currently being compiled from NOAA sources. Check back soon for detailed weather normals.
Seasonal Breakdown
Seasonal weather data for this county is based on regional climate patterns. Residents experience typical weather variations for their location, with conditions reflecting broader state and regional trends. Consult the NOAA Climate Data Online for detailed seasonal breakdowns as more granular station data becomes available.
Outdoor & Gardening Guidance
Growing season and gardening guidance for St. Charles Parish will be added as data becomes available.
Regional Context
Comparative climate data for St. Charles Parish is being processed.
Climate Profile
About St. Charles Parish Weather
Extreme Annual Rainfall Levels
St. Charles Parish receives a massive 66.0 inches of rain annually, nearly doubling the precipitation levels of many U.S. regions. While specific temperature data is limited, the environment is defined by its high moisture.
Wetter Than Most of Louisiana
The parish's 66.0 inches of precipitation far exceeds the Louisiana state average of 60.8 inches. It is one of the wettest parishes in a state that is already among the nation's dampest.
Consistent Wetness Across the Region
St. Charles sees rainfall similar to St. Helena (65.6 inches) and St. James (66.2 inches). This region forms a high-precipitation belt across southern Louisiana.
Dominated by Rain Rather Than Snow
Snow is a rare occurrence in this part of the state, as the climate is dominated by tropical moisture. Residents experience frequent afternoon thunderstorms and heavy seasonal downpours.
Invest in Robust Water Management
Homeowners should prioritize high-capacity gutters and flood insurance due to the 66 inches of annual rain. Waterproof footwear and reliable umbrellas are daily essentials for residents here.
Frequently Asked Questions
What is the average temperature in St. Charles Parish?
How much rain does St. Charles Parish get?
How hot does St. Charles Parish get in summer?
How cold are winters in St. Charles Parish?
Track your own weather in St. Charles Parish
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Data sources: ERA5 Reanalysis (modeled) via Open-Meteo (gap-filled where station data unavailable).. 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.