St. Helena Parish Climate
St. Helena Parish, Louisiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
68.1°F
Annual Precip
65.6"
Annual Snowfall
—
Extreme Heat Days
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Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
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. Helena Parish
Climate Verdict
Climate data for St. Helena 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. Helena Parish will be added as data becomes available.
Regional Context
Comparative climate data for St. Helena Parish is being processed.
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
What is the average temperature in St. Helena Parish?
How much rain does St. Helena Parish get?
How hot does St. Helena Parish get in summer?
How cold are winters in St. Helena Parish?
Track your own weather in St. Helena 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.