West Baton Rouge Parish Climate
West Baton Rouge Parish, Louisiana
Avg Annual Temp
67.3°F
Annual Precip
64.2"
Annual Snowfall
—
Extreme Heat Days
85.2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About West Baton Rouge Parish Weather
Warm and Exceptionally Wet Climate
West Baton Rouge Parish averages 67.3°F annually, significantly exceeding the national median temperature. It features a humid subtropical climate with some of the highest rainfall totals in the country. This creates a consistently warm and moist environment throughout the year.
Typical Heat for the Capital Region
The parish’s annual average of 67.3°F is slightly above the Louisiana state average of 67.0°F. It sits firmly within the warmer half of the state's parishes. Its climate is closely tied to the Mississippi River, which influences local humidity levels.
Exceeding State Averages for Rainfall
West Baton Rouge receives 64.2 inches of rain per year, which is well above the state average of 60.8 inches. It is one of the wettest parishes in the region, receiving more precipitation than neighboring Webster Parish’s 56.0 inches. This high moisture level contributes to 85 extreme heat days annually.
Muggy Summers and Steady Mild Winters
Summers are long with a July average of 81.8°F and a summer-wide average of 81.1°F. Winters are mild and snow data is unavailable, though the January average stays warm at 50.8°F. The parish experiences 85 days of temperatures reaching 90°F or higher.
Focus on Flood Prep and Cooling
With 64.2 inches of annual rain, residents should ensure proper site drainage and maintain flood insurance. High-efficiency air conditioning is a must for the 85 extreme heat days each year. Outdoor planning is most pleasant during the winter months, when temperatures average a comfortable 52.7°F.
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.