Standardized Precipitation Index Table

Central Climate Division

Indiana, Climate Division 05

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.) 4.44 10.86 14.36 15.98 17.26 21.37 25.4 25.61 28.25 31.22 36.17 39.24 54.23 61.97 78.53 97.57 112.88 163.67 200.13 244.3
Accumulated Precipitation Departure from Normal (in.) 0.17 2.77 2.73 2.11 0.64 1.81 2.77 0.1 -0.47 -0.97 -0.02 -1.13 2.24 1.99 -2.29 -2.77 -8.33 2.04 -1.85 1.88
Accumulated Precipitation Percent of Average 104 134 123 115 104 109 112 100 98 97 100 97 104 103 97 97 93 101 99 101
Accumulated Precipitation Percentile (non-exceedance) 59.3 86.3 81.6 74.8 59.6 69.9 75.4 53.2 48.4 44.8 52 44.9 64.2 62.2 41.4 39.7 22.9 57.2 46 55.3
Standardized Precipitation Index 0.24 1.09 0.9 0.67 0.24 0.52 0.69 0.08 -0.04 -0.13 0.05 -0.13 0.36 0.31 -0.22 -0.26 -0.74 0.18 -0.1 0.13