Standardized Precipitation Index Table

South Central Climate Division

Indiana, Climate Division 08

Precipitation Data Table

Time Scale in Months (As of the end of Jan. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 1.68 3.76 6.59 10.89 13.88 16.21 22.55 28.15 33.43 42.44 47.86 52.23 66.35 74.34 98.33 116.3 142.79 190.01 241.68 292.03
Accumulated Precipitation Departure from Normal (in.) -1.91 -3.37 -4.05 -2.8 -3.06 -4.23 -1.98 -0.64 0.09 4.85 5.83 7.21 10.55 8.74 8.23 5.61 7.61 9.78 16.42 21.75
Accumulated Precipitation Percent of Average 47 53 62 80 82 79 92 98 100 113 114 116 119 113 109 105 106 105 107 108
Accumulated Precipitation Percentile (non-exceedance) 17.5 9.9 11.7 26.7 27.7 22 38.9 48.4 53.1 76.5 79.6 83.5 89.2 82.7 78.3 68.6 72.1 73.2 80.8 84.4
Standardized Precipitation Index -0.93 -1.29 -1.19 -0.62 -0.59 -0.77 -0.28 -0.04 0.08 0.72 0.83 0.98 1.24 0.94 0.78 0.49 0.58 0.62 0.87 1.01