St. Helena Parish Climate
St. Helena Parish, Louisiana
Climate data coming soon
Avg Annual Temp
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Annual Precip
65.6"
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. Helena Parish Weather
Deep South Humidity and Heavy Rain
St. Helena Parish records 65.6 inches of annual precipitation, placing it well above national norms. This high level of moisture defines the local subtropical ecosystem.
Exceeding the State Precipitation Average
At 65.6 inches of rain, St. Helena is significantly wetter than the Louisiana state average of 60.8 inches. It represents the high-rainfall interior of the Florida Parishes region.
Similar to Nearby River Parishes
The parish's rainfall is comparable to St. Charles (66.0 inches) and St. James (66.2 inches). It shares a common humid profile with its neighbors to the south and west.
A Climate Defined by Moisture
While specific temperature data is unavailable, the high precipitation suggests a climate with rare snowfall and frequent thunderstorms. The moisture levels peak during the humid summer months.
Prepare for High Humidity and Rainfall
Managing indoor air quality and mold prevention is key given the 65.6 inches of annual rain. Residents should ensure that all outdoor equipment is rust-resistant to withstand the constant dampness.
Frequently Asked Questions
How much rain does St. Helena 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.