Allen Parish Climate
Allen Parish, Louisiana
Avg Annual Temp
66.7°F
Annual Precip
60.7"
Annual Snowfall
0.1"
Extreme Heat Days
83.55
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Allen Parish Weather
Subtropical Warmth Above National Medians
Allen Parish averages 66.7°F annually, placing it well above the typical national temperature profile. This warm environment is fueled by high moisture and consistent southern sunshine.
Aligning with Louisiana State Norms
The parish sits just below the Louisiana state average temperature of 67.0°F. Its annual precipitation of 60.7 inches almost perfectly matches the statewide average of 60.8 inches.
Slightly Cooler Than Southern Neighbors
Allen Parish is cooler than neighboring Acadia Parish, which records a 68.2°F average. It sees more extreme heat than Assumption Parish, despite having a lower overall average temperature.
A Season of Extreme Heat
Residents face 84 days of extreme heat annually where temperatures top 90°F. While winters average a cool 51.5°F, snowfall is nearly nonexistent with only 0.1 inches recorded on average.
Preparing for Heat and Rain
With over 60 inches of rain, durable rain gear and reliable drainage are essential for homeowners. The 84 extreme heat days require consistent indoor climate control to maintain comfort.
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.