Standardized Precipitation Index Table

North Central Climate Division

South Dakota, Climate Division 02

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.) 0.45 0.63 0.8 1.81 1.97 2.83 5.43 9.67 11.59 17.19 20.23 21.53 23.5 25.65 40.87 46.17 57.47 71.72 98.53 119.62
Accumulated Precipitation Departure from Normal (in.) -0.48 -0.82 -1.07 -0.51 -0.89 -1.25 -0.1 2.01 1.52 3.77 4.11 3.67 3.76 3.69 5.17 6.41 3.98 0.41 9.34 12.65
Accumulated Precipitation Percent of Average 48 43 43 78 69 69 98 126 115 128 126 121 119 117 114 116 107 101 110 112
Accumulated Precipitation Percentile (non-exceedance) 23.9 10.6 6.8 31.9 21.1 20 52.4 83.3 74.5 89.3 87.6 84.3 84 81.2 82.7 85.8 72.2 53.5 83 87.3
Standardized Precipitation Index -0.71 -1.25 -1.49 -0.47 -0.8 -0.84 0.06 0.96 0.66 1.24 1.16 1 1 0.88 0.94 1.07 0.59 0.09 0.95 1.14