Standardized Precipitation Index Table

Southeast Climate Division

Nebraska, Climate Division 09

Precipitation Data Table

Time Scale in Months (As of the end of Nov. 2019)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.64 3.73 7.76 14.68 18.56 23.89 32.86 33.92 37.1 38.41 39.28 42.55 54.42 67.5 74.77 90.04 104.04 136.53 172.13 199.59
Accumulated Precipitation Departure from Normal (in.) -0.65 0.29 1.06 4.32 4.52 5.41 10.07 8.39 9.88 10.24 10.45 12.75 17.93 19.26 15.33 12.22 14.98 17.83 23.79 21.71
Accumulated Precipitation Percent of Average 50 108 116 142 132 129 144 133 136 136 136 143 149 140 126 116 117 115 116 112
Accumulated Precipitation Percentile (non-exceedance) 37.3 63 70 91.9 87.9 89.1 96.5 93.5 95.1 95.4 95.6 97.8 99.2 98.9 95.9 89.8 92.2 92.3 95.3 92.6
Standardized Precipitation Index -0.32 0.33 0.52 1.4 1.17 1.23 1.81 1.51 1.65 1.68 1.7 2.01 2.43 2.28 1.73 1.27 1.42 1.43 1.68 1.45