Louisiana Annual Rainfall and Climate Data, see below for individual
cities
Louisiana Annual Rainfall and Climate Data, see below for individual
cities
Louisiana city precipitation totals
| City | 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 |
| Baton Rouge | 63.08 | 0.2 | 110 | 72 | 1 | 12 | 6 | 32 |
| Lake Charles | 57.19 | 0.3 | 103 | 76 | 1 | 12 | 7 | 70 |
| New Orleans | 64.19 | 0.2 | 114 | 69 | 1 | 11 | 3 | 13 |
| Shreveport | 51.30 | 1.5 | 98 | 57 | 2 | 8 | 14 | 59 |
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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
- Louisiana temperature averages and extremes, precipitation and temperature data for all U.S. states and interesting Top 10 U.S. climate extremes
Data sources: National Climatic Data Center, severe thunderstorm / tornado watch data period is 1999 - 2008, NOAA Storm Prediction Center