Standardized Precipitation Index Table

Central Climate Division

Ohio, Climate Division 05

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.) 2.67 5.64 11.25 15.24 21.1 23.84 27.32 30.34 32.25 35.44 36.81 39.93 56.49 69.67 95.32 122.23 140.38 187.34 224.59 263.7
Accumulated Precipitation Departure from Normal (in.) -1.42 -2.56 -0.91 -0.51 1.84 2.25 2.86 2.98 2.04 2.74 1.15 0.81 5.21 8.98 17.09 22.49 23.18 31.24 29.67 29.87
Accumulated Precipitation Percent of Average 65 69 93 97 110 110 112 111 107 108 103 102 110 115 122 123 120 120 115 113
Accumulated Precipitation Percentile (non-exceedance) 15.9 12.8 41.3 46.9 70.4 72.9 76.6 77.6 69.2 73.7 61 57.9 80.6 90.6 97.9 99.2 98.8 99.6 99.1 98.6
Standardized Precipitation Index -1 -1.14 -0.22 -0.08 0.53 0.61 0.72 0.76 0.5 0.63 0.28 0.2 0.86 1.32 2.03 2.39 2.26 2.68 2.37 2.21