Standardized Precipitation Index Table

West Central Climate Division

Ohio, Climate Division 04

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.) 4.67 10.52 13.82 16.17 17.63 21.89 25.14 25.56 28.85 31.62 35.06 37.71 51 58.56 75.35 93.64 111.37 158.27 193.2 235.85
Accumulated Precipitation Departure from Normal (in.) 0.77 3.04 3.06 3.27 2.07 3.62 4.08 1.89 2.22 1.7 1.21 -0.2 2.35 2.36 -0.52 -0.42 -2.39 6.63 3.72 8.45
Accumulated Precipitation Percent of Average 120 141 128 125 113 120 119 108 108 106 104 99 105 104 99 100 98 104 102 104
Accumulated Precipitation Percentile (non-exceedance) 72.5 90.4 86.1 85.3 74.1 84.5 84.7 69.1 70.2 65.3 60.8 50.7 65.6 64.9 49 49.4 42 71.1 61.4 71.2
Standardized Precipitation Index 0.6 1.31 1.09 1.05 0.64 1.01 1.02 0.5 0.53 0.39 0.27 0.02 0.4 0.38 -0.03 -0.02 -0.2 0.56 0.29 0.56