Standardized Precipitation Index Table

Northwest Climate Division

Ohio, Climate Division 01

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.) 2.72 4.58 9.2 11.19 14.99 16.89 20.34 22.63 23.97 27.22 30.01 34.07 49.8 60.92 80.44 101.67 116.29 160.55 192.55 234.29
Accumulated Precipitation Departure from Normal (in.) -0.88 -2.81 -1.82 -3.09 -2.09 -2.1 -0.86 -1.04 -2.31 -1.53 -1.69 -0.72 3.97 7.12 10.92 13.21 12.15 21.82 19.31 26.5
Accumulated Precipitation Percent of Average 76 62 83 78 88 89 96 96 91 95 95 98 109 113 116 115 112 116 111 113
Accumulated Precipitation Percentile (non-exceedance) 29.5 8.6 27.7 16.1 27.3 29 42.9 40.5 29 36.9 36 45.4 77.8 89 93.8 95.3 91.8 98.4 95.8 98.3
Standardized Precipitation Index -0.54 -1.36 -0.59 -0.99 -0.6 -0.55 -0.18 -0.24 -0.55 -0.33 -0.36 -0.12 0.77 1.23 1.54 1.68 1.39 2.14 1.73 2.12