Standardized Precipitation Index Table

North Central Climate Division

Nebraska, 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.) 4.29 7.33 11.43 12.2 14.13 14.45 14.86 16.05 17.02 18.3 21.5 27.43 42.01 47.7 57.16 78.18 90.6 110.89 140.07 165.19
Accumulated Precipitation Departure from Normal (in.) 1.35 0.8 1.49 -0.1 0.65 0.36 0.31 0.95 1.23 1.16 2.53 5.91 10.56 12.1 14.17 21.15 26.18 25.14 32.93 36.69
Accumulated Precipitation Percent of Average 146 112 115 99 105 103 102 106 108 107 113 127 134 134 133 137 141 129 131 129
Accumulated Precipitation Percentile (non-exceedance) 84.8 68.4 73.3 51.9 61 57.5 56.8 63.8 66.7 64.7 75.5 91.8 97.4 98.3 98.6 99.7 99.9 99.6 99.9 99.9
Standardized Precipitation Index 1.03 0.48 0.62 0.05 0.28 0.19 0.17 0.35 0.43 0.38 0.69 1.39 1.95 2.12 2.2 2.74 3.08 2.62 3 3.06