Standardized Precipitation Index Table

Northwest Climate Division

Minnesota, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Nov. 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.3 2.88 4.93 7.01 11.34 13.81 15.95 18.29 18.72 18.94 19.26 20.11 23.29 34.19 44 55.09 61.99 85.29 102.11 124.32
Accumulated Precipitation Departure from Normal (in.) -0.6 0.33 0.01 -0.89 0.16 -1.1 -1.64 -0.9 -1.34 -1.67 -1.99 -1.87 -3.61 -2.71 0.07 -3.76 -3.87 -2.55 -7.69 -7.46
Accumulated Precipitation Percent of Average 33 113 100 89 101 93 91 95 93 92 91 92 87 93 100 94 94 97 93 94
Accumulated Precipitation Percentile (non-exceedance) 15.2 66.1 55.4 37.4 55.5 38.4 34 42.4 37.5 33.8 30.2 31.4 20.4 29.1 52.1 27.5 27.2 38 20.1 23.9
Standardized Precipitation Index -1.03 0.41 0.14 -0.32 0.14 -0.29 -0.41 -0.19 -0.32 -0.42 -0.52 -0.48 -0.83 -0.55 0.05 -0.6 -0.61 -0.3 -0.84 -0.71