Vernon Parish Climate
Vernon Parish, Louisiana
Avg Annual Temp
66.7°F
Annual Precip
59.5"
Annual Snowfall
0.1"
Extreme Heat Days
100.175
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Vernon Parish Weather
Subtropical Heat in Central Louisiana
Vernon Parish averages 66.7°F annually, placing it well above the national median temperature. The climate is classified as humid subtropical, characterized by long, hot summers and brief, mild winters. This temperature profile is typical for the American Deep South but far warmer than most of the country.
Keeping Pace With the State Average
At 66.7°F, Vernon Parish sits just below the Louisiana state average of 67.0°F. This small variance makes it one of the more representative parishes for the state's overall climate. It experiences the classic Louisiana heat without the extreme coastal humidity of its southern neighbors.
Drier and Hotter Than Coastal Parishes
Vernon sees 100 extreme heat days per year, significantly more than Vermilion’s 73 days. It is also drier than the state average, receiving 59.5 inches of annual rainfall compared to the Louisiana average of 60.8 inches. This inland position results in sharper temperature peaks during the summer months.
A Century of Extreme Heat Days
The parish endures 100 days of temperatures at or above 90°F, with July highs averaging 82.3°F. Winters are cool but rarely cold, featuring a January average of 49.4°F and a negligible 0.1 inches of annual snowfall. The summer average of 81.5°F dominates the local weather calendar.
Prioritize Heat Safety and Cooling Efficiency
With 100 days of extreme heat, efficient home cooling and hydration are the top priorities for residents. The 59.5 inches of annual rain require sturdy roofing, though the parish is slightly less prone to flooding than coastal areas. Plan for peak outdoor work during the mild 51.0°F winter season.
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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.