Louisiana Annual Rainfall and Climate Data, see below for individual cities
Louisiana city precipitation totals
Avg Annual Precip
Avg Annual Snow
|Avg # days of Precip||
Avg # thunderstorm days
Avg # hail days
|Avg # severe thunderstorm watches per year||Avg # tornado watches per year||# of tornadoes reported in parish, 1960-2010|
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 of the city 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
Data sources: National Climatic Data Center, Severe thunderstorm / tornado watch data period is 1999 - 2008, NOAA Storm Prediction Center, Tornado climate data - NOAA Storm Prediction Center, State lightning flash density average - 1997-2011, Vaisala