Standardized Precipitation Index Table

Western Climate Division

Kentucky, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Jun. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 5.13 9.78 13.22 20.52 26.09 31.02 35.32 40.73 46.9 47.23 51.19 56.65 73.52 92.86 118.42 151.15 173.4 225.82 282.9 329.22
Accumulated Precipitation Departure from Normal (in.) 1.06 1.16 0.11 2.56 4.38 5.1 5.04 6.47 9.54 6.54 7.18 8.64 12.4 18.96 22.47 29.4 29.65 34.32 43.72 42.42
Accumulated Precipitation Percent of Average 126 113 101 114 120 120 117 119 126 116 116 118 120 126 123 124 121 118 118 115
Accumulated Precipitation Percentile (non-exceedance) 75.2 69 55 73.6 80.8 81.8 79.7 83.1 90.4 81.5 82.3 85.6 91.1 96.7 96.3 98.7 97.8 98.2 99.3 98.5
Standardized Precipitation Index 0.68 0.5 0.13 0.63 0.87 0.91 0.83 0.96 1.3 0.9 0.93 1.06 1.35 1.84 1.79 2.22 2.01 2.11 2.44 2.18