Standardized Precipitation Index Table

North Central Climate Division

North Dakota, Climate Division 02

Precipitation Data Table

Time Scale in Months (As of the end of Apr. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.36 0.77 1.38 1.51 1.92 2.1 4.72 6.41 8.55 11.88 13.36 16.1 17.59 19.23 34.86 38.33 49.88 65.02 82.55 93.33
Accumulated Precipitation Departure from Normal (in.) -0.81 -1.07 -0.9 -1.25 -1.38 -1.8 -0.25 -0.18 -0.26 0.51 -1.36 -0.85 -1.64 -1.61 0.97 0.58 -0.9 -2.7 -2.13 -8.3
Accumulated Precipitation Percent of Average 31 42 61 55 58 54 95 97 97 105 91 95 91 92 103 102 98 96 97 92
Accumulated Precipitation Percentile (non-exceedance) 13.4 7.8 16.7 8.1 7.9 4.8 47.8 50.8 49.2 60.7 35 43 34 34.1 60 56.5 44.8 35.1 39.7 16
Standardized Precipitation Index -1.11 -1.42 -0.97 -1.4 -1.41 -1.67 -0.05 0.02 -0.02 0.27 -0.38 -0.18 -0.41 -0.41 0.25 0.16 -0.13 -0.38 -0.26 -0.99