Standardized Precipitation Index Table

Northwest Climate Division

Louisiana, Climate Division 01

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.) 5.94 9.79 19.74 22.1 24.21 27.71 30.89 31.8 34.94 39.33 43.3 52.02 68.96 82.51 104.89 125.05 155.42 213.83 274.33 334.48
Accumulated Precipitation Departure from Normal (in.) 1.31 0.92 6.2 3.54 1.39 1.42 1.48 -0.73 -1.57 -1.09 -1.99 2 5.45 6.2 4.86 -1.32 5.32 13.59 24.03 34.08
Accumulated Precipitation Percent of Average 128 110 146 119 106 105 105 98 96 97 96 104 109 108 105 99 104 107 110 111
Accumulated Precipitation Percentile (non-exceedance) 76.3 65.3 91.3 76.3 62.1 61.3 61 49.1 44.8 47.7 43.4 60.8 70.8 70.8 65.6 48.3 63.8 76.2 85.6 91
Standardized Precipitation Index 0.72 0.39 1.36 0.72 0.31 0.29 0.28 -0.02 -0.13 -0.06 -0.17 0.27 0.55 0.55 0.4 -0.04 0.35 0.71 1.06 1.34