Standardized Precipitation Index Table

Southeast Climate Division

Indiana, Climate Division 09

Precipitation Data Table

Time Scale in Months (As of the end of May 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 4.68 12.45 17.66 21.86 24.07 28.76 34.2 34.47 39.81 43 48.23 50.13 64.14 74.15 92.71 115.56 135.26 188.69 231.8 280.96
Accumulated Precipitation Departure from Normal (in.) 0.22 3.95 4.93 6.29 5.05 6.32 8.49 5.84 8.06 7.77 8.93 6.66 7.98 8.2 5.74 6.19 4.85 14.87 14.65 20.44
Accumulated Precipitation Percent of Average 105 146 139 140 127 128 133 120 125 122 123 115 114 112 107 106 104 109 107 108
Accumulated Precipitation Percentile (non-exceedance) 60.2 89.9 89.7 92.1 86.3 90 93.7 85 90.3 88.3 89.6 82.3 83.3 82.7 71.2 71.1 65.4 83.3 79.9 84.6
Standardized Precipitation Index 0.26 1.28 1.26 1.41 1.09 1.28 1.53 1.04 1.3 1.19 1.26 0.93 0.96 0.94 0.56 0.56 0.39 0.96 0.84 1.02