Louisiana Annual Rainfall see below for individual cities 


 

Louisiana city precipitation totals

City

Avg Annual Precip

Avg Snow Annual

 Avg. days of Precip

Avg # thunderstorm days

Avg # hail days
Baton Rouge 63.08 0.2 110 72 1
Lake Charles 57.19 0.3 103 76 1
New Orleans 64.19 0.2 114 69 1
Shreveport 51.30 1.5 98 57 2
State Average - 60.09 inches, 2nd wettest in U.S. 

Louisiana Precipitation Records 

  • Driest location ranked by lowest annual average precipitation: Red River Lock #1, central Louisiana, 46.46"
  • Wettest location ranked by highest annual average precipitation: Thibodaux, southeastern Louisiana, 69.95"
  • Snowiest location ranked by highest annual average snowfall: Plain Dealing, northeastern Louisiana, 1.9"
  • State precipitation maximum for 24 hours - Hackberry, southwestern Louisiana, 8/29/1962, 22.00"
  • State precipitation maximum for 1 year - New Orleans, southeastern Louisiana, 1991, 113.74"
  • State snow maximum for 24 hours - Rayne, south-central Louisiana, 2/14-15-1895, 24.0" 
  • State snow maximum for 1 season - Rayne, south-central Louisiana, 1894-1895, 24.0" 
  • On August 31, 2005 during Hurricane Katrina, 80% of New Orleans was flooded, with some parts under 15 feet of water
  • Rains of as much as 20 inches in a month have occurred in most Louisiana cities, and rainfall as much as 10 inches 
in 24 hours are not rare. Only Hawaii averages more annual precipitation than Louisiana

Precipitation data for other U.S. states
Data source: National Data Climatic Center