Standardized Precipitation Index Table

South Central Climate Division

Louisiana, Climate Division 08

Precipitation Data Table

Time Scale in Months (As of the end of Jul. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 7.74 14.04 20.69 24.88 26.46 30.38 37.18 39.49 40.84 48.61 50.27 58.91 82.99 96.26 134.59 158.26 192.82 272.3 346.77 409.3
Accumulated Precipitation Departure from Normal (in.) 0.99 1.58 3.25 2.96 0.19 -0.43 1.44 -1.41 -4.08 -0.08 -3.36 -0.9 5.77 5.64 14.89 7.81 13.31 32.98 47.83 50.96
Accumulated Precipitation Percent of Average 115 113 119 114 101 99 104 97 91 100 94 98 107 106 112 105 107 114 116 114
Accumulated Precipitation Percentile (non-exceedance) 70.2 69.1 75.9 71.6 54.4 50.8 60.1 45.7 34.3 52.1 38.1 48.6 71.2 68.8 85.4 70.3 78.6 94.7 98.2 98
Standardized Precipitation Index 0.53 0.5 0.7 0.57 0.11 0.02 0.26 -0.11 -0.4 0.05 -0.3 -0.03 0.56 0.49 1.05 0.53 0.79 1.62 2.09 2.06