Standardized Precipitation Index Table

West Central Plains Climate Division

Missouri, 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.) 0.56 2.93 5.98 7.07 10.28 12.79 17.5 21.96 23.67 26.5 27.44 30.22 35.94 43.83 70.87 84.61 114.76 156.74 210.69 249.43
Accumulated Precipitation Departure from Normal (in.) -1.26 -0.67 0.33 -1.19 -1.43 -3.16 -2.28 -1.61 -4.84 -7.04 -10.09 -10.37 -10.28 -12.72 -10.37 -12.58 -7.1 -5.77 7.61 5.87
Accumulated Precipitation Percent of Average 31 81 106 86 88 80 88 93 83 79 73 74 78 78 87 87 94 96 104 102
Accumulated Precipitation Percentile (non-exceedance) 9.3 38.3 61 37.9 36.3 24.5 32.4 40.6 22.4 14.8 6.6 6.8 9 7 17 14.2 30.3 36.3 67.8 63.2
Standardized Precipitation Index -1.32 -0.3 0.28 -0.31 -0.35 -0.69 -0.46 -0.24 -0.76 -1.04 -1.51 -1.49 -1.34 -1.48 -0.95 -1.07 -0.51 -0.35 0.46 0.34