Standardized Precipitation Index Table

South Central Climate Division

North Dakota, Climate Division 08

Precipitation Data Table

Time Scale in Months (As of the end of Jan. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.24 0.83 1.63 4.48 7.51 9.27 12.49 14.95 20.59 22.59 22.78 23.24 24.77 27.95 39.36 47.96 60.6 77.13 92.92 103.61
Accumulated Precipitation Departure from Normal (in.) -0.19 -0.05 0.21 1.96 3.5 3.28 4.09 3.13 6.3 6.84 6.25 6.26 6.35 4.98 5.43 8.06 9.73 9.35 8.23 2
Accumulated Precipitation Percent of Average 56 94 114 178 188 155 149 127 144 143 138 137 134 122 116 120 119 114 110 102
Accumulated Precipitation Percentile (non-exceedance) 29.1 52 67 94.1 96.7 94.1 95 86.6 95.8 96.6 95.3 95.3 95.4 88 86.2 91.7 93.2 89.1 83.5 59.7
Standardized Precipitation Index -0.55 0.05 0.44 1.56 1.84 1.56 1.65 1.11 1.73 1.83 1.67 1.67 1.68 1.17 1.09 1.38 1.49 1.23 0.98 0.25