Standardized Precipitation Index Table

Northeast Hills. Climate Division

Ohio, Climate Division 07

Precipitation Data Table

Time Scale in Months (As of the end of Sep. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 2.86 6.44 9.17 12.51 16 20.06 26.27 29.4 32.91 36.45 38.95 43.63 54.34 71.35 93.48 123.45 145.89 188.53 225.79 265.93
Accumulated Precipitation Departure from Normal (in.) -0.29 -0.29 -1.9 -2.74 -3 -2.32 0.6 1.41 2.12 2.83 2.59 4.59 4.22 9.91 15.48 23.09 29.02 32.97 31.57 33
Accumulated Precipitation Percent of Average 91 96 83 82 84 90 102 105 107 108 107 112 108 116 120 123 125 121 116 114
Accumulated Precipitation Percentile (non-exceedance) 49 48.7 24.9 19.8 20.5 28.9 57.9 64.5 70 75.2 72.2 83.5 77.5 93.2 98 99.3 99.8 99.8 99.4 99.1
Standardized Precipitation Index -0.03 -0.03 -0.68 -0.85 -0.83 -0.56 0.2 0.37 0.52 0.68 0.59 0.97 0.75 1.49 2.04 2.45 2.96 2.92 2.5 2.35