Standardized Precipitation Index Table

South Central Climate Division

Minnesota, Climate Division 08

Precipitation Data Table

Time Scale in Months (As of the end of May 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 4.41 5.81 8.79 9.77 10.93 12.22 14.41 19.24 25.36 28.71 34.57 38.3 51.89 56.87 84.89 97.37 116.61 162.19 199.51 230.43
Accumulated Precipitation Departure from Normal (in.) 0.55 -0.66 0.7 0.84 1.22 1.56 2.3 5.05 7.84 7.36 9.45 8.57 14.07 16.49 25.5 27.37 27.67 43.68 51.51 52.99
Accumulated Precipitation Percent of Average 114 90 109 109 113 115 119 136 145 134 138 129 137 141 143 139 131 137 135 130
Accumulated Precipitation Percentile (non-exceedance) 67.5 42.4 64.7 65.8 70.4 73.4 79.3 92.9 97.2 95.4 97.2 95.1 98.2 99.1 99.8 99.8 99.4 99.9 100 99.9
Standardized Precipitation Index 0.45 -0.19 0.38 0.41 0.54 0.62 0.82 1.47 1.91 1.68 1.91 1.65 2.1 2.38 2.94 2.86 2.54 3.24 3.39 3.22