Assumption Parish Climate
Assumption Parish, Louisiana
Avg Annual Temp
68.2°F
Annual Precip
63.4"
Annual Snowfall
0.1"
Extreme Heat Days
79.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Assumption Parish Weather
Consistently Warm and Humid
With an average annual temperature of 68.2°F, Assumption Parish is far warmer than the national average. It experiences a classic southern climate with heavy rainfall and mild winters.
Warmer Than the State Average
Assumption stays warmer than the Louisiana state average of 67.0°F. It also receives 63.4 inches of rain, which is several inches above the state norm.
Tracking Regional Weather Patterns
Assumption's 68.2°F average temperature matches Acadia Parish exactly. It records slightly less rain than Ascension Parish, which sees 65.7 inches per year.
Mild Winters and 80 Heat Days
The parish sees 80 days a year with temperatures reaching 90°F or more. Winter is exceptionally mild, averaging 53.9°F with only a trace of snow at 0.1 inches.
Planning for the Swampy Heat
The combination of 80 heat days and 63.4 inches of rain makes dehumidification a priority for indoor spaces. Lightweight, breathable clothing is the standard for most of the year.
Frequently Asked Questions
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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.