Standardized Precipitation Index Table

East Central Climate Division

South Dakota, Climate Division 07

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.) 0.53 1.04 1.52 3.3 3.44 6.99 9.26 13.37 15.96 19.35 20.89 22.27 24.92 28.23 44.42 51.81 65.56 86.11 121.54 147.89
Accumulated Precipitation Departure from Normal (in.) -0.63 -0.71 -0.76 0.45 -0.22 1.68 1.83 3.23 2.86 2.52 1.06 0.2 0.57 0.85 0.26 2.39 -0.64 -2.14 11.18 15.53
Accumulated Precipitation Percent of Average 46 59 67 116 94 132 125 132 122 115 105 101 102 103 101 105 99 98 110 112
Accumulated Precipitation Percentile (non-exceedance) 19.6 19.3 20.5 70.7 46.8 84.6 80.2 88.9 83.6 78.4 63.1 54.4 57.5 59.2 53.5 65.1 48.6 43.1 82.9 87.5
Standardized Precipitation Index -0.85 -0.87 -0.82 0.54 -0.08 1.02 0.85 1.22 0.98 0.79 0.33 0.11 0.19 0.23 0.09 0.39 -0.04 -0.17 0.95 1.15