Standardized Precipitation Index Table

Northeast Hills. Climate Division

Ohio, Climate Division 07

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.) 4.74 9.44 11.5 15.42 16.73 19.63 22.39 23.39 26.02 28.74 31.63 33.96 48.02 56.61 78.08 94.94 117.04 163.15 197.71 248.44
Accumulated Precipitation Departure from Normal (in.) 0.97 2.27 1.05 2.63 1.14 1.25 1.27 -0.41 -0.91 -1.8 -3.26 -5.08 -1.46 -0.86 -0.1 -1.57 -0.18 6.94 2.59 14.33
Accumulated Precipitation Percent of Average 126 132 110 121 107 107 106 98 97 94 91 87 97 99 100 98 100 104 101 106
Accumulated Precipitation Percentile (non-exceedance) 77 87 69 83.3 67 67.9 66.6 47.5 42.5 34.9 25.2 15.9 41.3 45.5 50.7 43.3 50.3 73.3 58.6 83.4
Standardized Precipitation Index 0.74 1.13 0.5 0.97 0.44 0.47 0.43 -0.06 -0.19 -0.39 -0.67 -1 -0.22 -0.11 0.02 -0.17 0.01 0.62 0.22 0.97