Standardized Precipitation Index Table

West Central Climate Division

Ohio, Climate Division 04

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.) 3.46 5.52 10.81 13.89 19.31 22.15 26.11 29.22 30.81 33.92 35.72 38.09 54.61 68.37 92.7 116.7 133.74 180.62 215.52 257.63
Accumulated Precipitation Departure from Normal (in.) -0.43 -2.46 -1.06 -1.54 0.62 1.34 2.64 3 1.77 2.28 1.12 0.2 4.85 9.68 16.94 20.22 20.28 29.49 26.8 31.23
Accumulated Precipitation Percent of Average 89 69 91 90 103 106 111 111 106 107 103 101 110 116 122 121 118 120 114 114
Accumulated Precipitation Percentile (non-exceedance) 43.7 15.8 39.8 35.6 59 65.1 74.3 76.7 66.3 69.6 60.5 53.4 78.1 91.5 97.1 98.1 96.8 99 97.5 98
Standardized Precipitation Index -0.16 -1 -0.26 -0.37 0.23 0.39 0.65 0.73 0.42 0.51 0.27 0.08 0.78 1.37 1.9 2.07 1.86 2.33 1.95 2.05