Standardized Precipitation Index Table

Southwest Climate Division

Nebraska, Climate Division 07

Precipitation Data Table

Time Scale in Months (As of the end of Nov. 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.37 1.52 4.72 8.42 11.14 16.93 20.1 21.25 21.95 22.44 22.65 22.66 25.73 34.39 43.39 53.86 65.27 76.26 95.12 109.08
Accumulated Precipitation Departure from Normal (in.) -0.27 -0.31 1.26 2.53 2.36 4.86 4.79 3.88 3.49 3.45 3.27 2.79 2.41 2.49 3.68 2.11 5.72 -3.12 -4.19 -10.19
Accumulated Precipitation Percent of Average 58 83 136 143 127 140 131 122 119 118 117 114 110 108 109 104 110 96 96 91
Accumulated Precipitation Percentile (non-exceedance) 41.1 48.4 80.6 89.5 83.3 93.2 89.5 84.2 81.4 81 79.8 76.5 72.8 70 75.3 64.5 80.2 35.4 32.1 12.9
Standardized Precipitation Index -0.22 -0.04 0.86 1.25 0.96 1.49 1.26 1 0.89 0.88 0.83 0.72 0.61 0.52 0.68 0.37 0.85 -0.38 -0.46 -1.13