Standardized Precipitation Index Table

Northwest Climate Division

Ohio, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Feb. 2024)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.75 4.79 6.53 7.4 11.07 12.2 15.32 19.98 22.57 24.26 26.57 30.33 38.83 44.34 66.33 85.54 107.63 137.92 181.3 220.79
Accumulated Precipitation Departure from Normal (in.) -1.16 0.66 0.01 -1.69 -0.53 -2.34 -2.33 -1.3 -2.49 -4.43 -5.35 -4.4 -2.48 -5.01 -3.22 1.43 3.33 -1.08 7.6 12.45
Accumulated Precipitation Percent of Average 39 116 100 81 95 84 87 94 90 85 83 87 94 90 95 102 103 99 104 106
Accumulated Precipitation Percentile (non-exceedance) 10.6 69.6 54.4 26.3 45.5 24.4 27 39.6 30 17.7 13.9 19 33.6 20.2 32.4 58.6 66 46.7 75 83.7
Standardized Precipitation Index -1.25 0.51 0.11 -0.63 -0.11 -0.69 -0.61 -0.26 -0.52 -0.93 -1.09 -0.88 -0.42 -0.83 -0.46 0.22 0.41 -0.08 0.68 0.98