Standardized Precipitation Index Table

Coastal Climate Division

Mississippi, Climate Division 10

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.) 6.77 9.73 19.27 25.84 28.63 30.15 33.22 34.84 40.05 46.11 50.79 56.74 69.6 84.84 120.95 141.17 208.05 272.58 334.26 404.01
Accumulated Precipitation Departure from Normal (in.) 0.88 -1.16 3.36 4.6 3.52 1.77 -0.47 -5.14 -7.04 -6.68 -7.01 -6.16 -9.19 -6.44 -4.92 -13.14 19.17 20.75 19.56 26.33
Accumulated Precipitation Percent of Average 115 89 121 122 114 106 99 87 85 87 88 90 88 93 96 91 110 108 106 107
Accumulated Precipitation Percentile (non-exceedance) 67 42.3 77.7 81.5 72.9 63.2 50.4 25.6 17.8 21 22.4 28.1 22.6 31 37.8 21.1 85.7 84 79.9 84.7
Standardized Precipitation Index 0.44 -0.2 0.76 0.9 0.61 0.34 0.01 -0.66 -0.92 -0.8 -0.76 -0.58 -0.75 -0.49 -0.31 -0.8 1.07 1 0.84 1.03