St. Charles Parish Climate
St. Charles Parish, Louisiana
Climate data coming soon
Avg Annual Temp
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Annual Precip
66.0"
Annual Snowfall
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Extreme Heat Days
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Monthly Temperature
Temperature data coming soon
Precipitation Calendar
Seasonal Overview
Seasonal data coming soon
National Comparison
Data pending
Data pending
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
How much rain does St. Charles Parish get?
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.