Standardized Precipitation Index Table

Northeast Climate Division

North Dakota, Climate Division 03

Precipitation Data Table

Time Scale in Months (As of the end of Feb. 2024)
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 0.59 1.17 1.3 3.05 5.54 6.75 7.88 11.62 12.67 14.16 14.9 16.73 18.91 37.07 45.2 54.53 70.51 93.37 111.34
Accumulated Precipitation Departure from Normal (in.) -0.14 -0.48 -0.52 -1.14 -0.69 -0.18 -1.46 -3.21 -2.83 -4.15 -3.95 -4.01 -3.89 -5.74 -0.79 1.64 -2.2 -5.14 -1.22 -2.19
Accumulated Precipitation Percent of Average 73 55 69 53 82 97 82 71 80 75 78 79 81 77 98 104 96 93 99 98
Accumulated Precipitation Percentile (non-exceedance) 41.9 16.6 21.6 9.3 34.2 51 27.7 8.8 16 9.3 11.7 11.8 12 6.7 45.1 64 36.2 23.4 44.9 41
Standardized Precipitation Index -0.2 -0.97 -0.78 -1.32 -0.41 0.02 -0.59 -1.35 -0.99 -1.32 -1.19 -1.18 -1.17 -1.5 -0.12 0.36 -0.35 -0.72 -0.13 -0.23