Standardized Precipitation Index Table

South Central Climate Division

Nebraska, Climate Division 08

Precipitation Data Table

Time Scale in Months (As of the end of Mar. 2024)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 1.07 2.32 3.03 4.17 4.76 6.03 8.83 12.45 15.24 19.37 23.28 23.7 26.8 28.38 42.26 45.44 63.9 86.93 118.68 150.16
Accumulated Precipitation Departure from Normal (in.) -0.27 0.31 0.56 1.09 0.79 0.52 1.09 1.77 1.3 1.66 1.84 -0.1 0.53 -0.94 -5.36 -7.65 -7.52 -8.28 -0.32 7.4
Accumulated Precipitation Percent of Average 80 115 123 135 120 109 114 117 109 109 109 100 102 97 89 86 89 91 100 105
Accumulated Precipitation Percentile (non-exceedance) 51.8 67 71.8 80 72.5 64.4 70.5 76.5 67.3 68.5 67.7 51.8 56.7 45.5 22.7 15.2 19.5 21.5 50.3 71.9
Standardized Precipitation Index 0.04 0.44 0.58 0.84 0.6 0.37 0.54 0.72 0.45 0.48 0.46 0.05 0.17 -0.11 -0.75 -1.03 -0.86 -0.79 0.01 0.58