Allen Parish Climate
Allen Parish, Louisiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.7°F
Annual Precip
60.7"
Annual Snowfall
0.1"
Extreme Heat Days
84
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,459
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Allen Parish
Climate Verdict
Allen Parish has a warm, averaging 66.7°F year-round, very wet conditions receiving 60.7 inches of precipitation annually, significant summer heat with 83.55 days annually above 90°F, light snow averaging 0.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 49.4°F. summers are hot, with July averaging 81.6°F. The 32°F seasonal variation provides noticeable but manageable change. January is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Allen Parish closely matches the Louisiana statewide average temperature of 67.0°F.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. 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.