Standardized Precipitation Index Table

East Central Climate Division

Indiana, Climate Division 06

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.) 3.48 10.02 13.55 15.41 16.61 20.78 24.57 24.78 28.06 30.74 35.1 38.13 51.77 59.37 75.76 94.84 109.61 158.71 193.99 237.35
Accumulated Precipitation Departure from Normal (in.) -0.59 2.13 2.14 1.8 0.25 1.55 2.36 -0.21 -0.08 -0.89 -0.42 -1.62 0.63 0.34 -3.81 -3.91 -9.72 -0.39 -4.84 -1.29
Accumulated Precipitation Percent of Average 85 127 119 113 102 108 111 99 100 97 99 96 101 101 95 96 92 100 98 99
Accumulated Precipitation Percentile (non-exceedance) 41.2 82.4 77.5 72.4 55.7 67.9 73 50.4 51.6 45.3 49.1 41.4 55.4 53.5 34.1 34.4 17.7 49.7 37 47.5
Standardized Precipitation Index -0.22 0.93 0.76 0.6 0.14 0.46 0.61 0.01 0.04 -0.12 -0.02 -0.22 0.14 0.09 -0.41 -0.4 -0.93 -0.01 -0.33 -0.06