Standardized Precipitation Index Table

North Central Climate Division

West Virginia, Climate Division 02

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.) 4.21 9.05 14.87 21.33 25.06 30.18 34.15 39.69 42.08 46.67 47.56 51.98 66.92 78.34 110.33 144.96 163.86 215.97 261.02 310.51
Accumulated Precipitation Departure from Normal (in.) -0.81 -0.59 0.86 3.51 3.12 5.02 5.27 7.12 6.3 7.79 5.28 5.51 6.44 6.75 17.41 26.93 24.61 30.46 29.37 32.65
Accumulated Precipitation Percent of Average 84 94 106 120 114 120 118 122 118 120 112 112 111 109 119 123 118 116 113 112
Accumulated Precipitation Percentile (non-exceedance) 32.6 42.7 63.6 85.5 80.5 88.4 88.3 93 89.5 92.3 82.6 82.3 82.2 81.6 97 99.5 98.5 99.3 98.7 98.8
Standardized Precipitation Index -0.45 -0.18 0.35 1.06 0.86 1.19 1.19 1.47 1.26 1.43 0.94 0.93 0.92 0.9 1.89 2.59 2.18 2.45 2.22 2.24