Calcasieu Parish Climate
Calcasieu Parish, Louisiana
Avg Annual Temp
68.8°F
Annual Precip
64.2"
Annual Snowfall
0.0"
Extreme Heat Days
90.8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Calcasieu Parish Weather
A High-Heat Gulf Coast Climate
Calcasieu Parish averages 68.8°F annually, significantly exceeding the national median of 53°F. It is also exceptionally wet, receiving 64.2 inches of rain per year compared to the much drier national average.
One of Louisiana's Warmest Counties
The parish average of 68.8°F is nearly two degrees higher than the Louisiana state average of 67.0°F. This puts Calcasieu in the top tier of the state's warmest regions.
Hotter and Wetter than Northern Neighbors
Calcasieu is significantly warmer than Caddo Parish, which sits at 65.5°F. It also receives about 11 more inches of annual rain than Caddo, reflecting its proximity to the Gulf of Mexico.
Year-Round Warmth with No Snow
Winter temperatures average a mild 54.2°F, and the parish records zero annual snowfall. Summer is the primary season, featuring 91 extreme heat days and a July average of 83.1°F.
Prepare for Intense Moisture
Dehumidifiers and heavy-duty cooling systems are necessary to combat the high humidity and 90-plus heat days. Residents must also maintain robust drainage systems for the 64.2 inches of annual rain.
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.