Standardized Precipitation Index Table

Northwest Climate Division

Minnesota, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Apr. 2022)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 4.59 4.86 5.86 6.34 7.86 9.17 13.13 15.51 18.53 19.25 21.08 22.19 24.15 25.28 43.29 47.93 70.16 93.7 111.72 139.11
Accumulated Precipitation Departure from Normal (in.) 3 2.4 2.84 2.68 3.47 3.88 6.18 6.17 6.2 3.62 1.71 0.15 -0.88 -1.98 -0.74 -1.33 4.14 5.71 1.78 7.18
Accumulated Precipitation Percent of Average 289 198 194 173 179 173 189 166 150 123 109 101 96 93 98 97 106 106 102 105
Accumulated Precipitation Percentile (non-exceedance) 98.9 97.8 98.6 98 99.2 99.3 99.8 99 98.5 89.3 71.5 53.9 42.3 30.6 45.6 40.7 75.3 77.5 58.8 75.9
Standardized Precipitation Index 2.3 2.02 2.19 2.05 2.39 2.47 2.9 2.33 2.16 1.24 0.57 0.1 -0.19 -0.51 -0.11 -0.23 0.68 0.75 0.22 0.7