Standardized Precipitation Index Table

South Central Climate Division

Ohio, Climate Division 09

Precipitation Data Table

Time Scale in Months (As of the end of Jul. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 4.22 7.36 13.44 18.79 22.54 26.83 29.93 35.88 38.86 44.08 44.79 49.41 64.54 78.1 109.49 139.08 155.33 200.03 241.69 286.64
Accumulated Precipitation Departure from Normal (in.) -0.16 -0.99 0.96 2.63 2.38 3.77 3.53 6.21 6.26 8.87 6.6 7.55 10.21 13.2 25.76 32.36 29.92 32.96 33 36.26
Accumulated Precipitation Percent of Average 96 88 108 116 112 116 113 121 119 125 117 118 119 120 131 130 124 120 116 114
Accumulated Precipitation Percentile (non-exceedance) 49.4 34.5 65.3 79.6 75.2 82 79.8 90.4 89.9 95.4 88.8 90.3 93.6 96.2 99.8 100 99.8 99.9 99.7 99.7
Standardized Precipitation Index -0.02 -0.4 0.39 0.83 0.68 0.92 0.83 1.3 1.27 1.68 1.21 1.3 1.52 1.78 2.92 3.29 2.91 2.97 2.75 2.76