Standardized Precipitation Index Table

Northeast Climate Division

Louisiana, Climate Division 03

Precipitation Data Table

Time Scale in Months (As of the end of Mar. 2024)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 7.47 12.1 20.91 23.77 26.2 26.88 28.88 29.83 33.75 38.46 41.37 47.82 62.9 74.99 105.09 124.54 156.18 213.32 288.74 350.13
Accumulated Precipitation Departure from Normal (in.) 1.83 1.49 4.98 2.24 0.22 -2.37 -3.27 -5.87 -6.3 -5.54 -7.34 -6.15 -6.96 -8.27 -2.92 -12.9 -5.97 -3.04 18.25 25.58
Accumulated Precipitation Percent of Average 133 114 131 110 101 92 90 84 84 87 85 89 90 90 97 91 96 99 107 108
Accumulated Precipitation Percentile (non-exceedance) 78.6 69.2 85.7 68.1 54.7 39.2 34.6 22.1 21.2 26.3 19.7 26.2 26.9 26 43.2 21.1 37.1 44.8 80.2 86
Standardized Precipitation Index 0.79 0.5 1.07 0.47 0.12 -0.27 -0.4 -0.77 -0.8 -0.63 -0.85 -0.64 -0.61 -0.64 -0.17 -0.8 -0.33 -0.13 0.85 1.08