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 Jul. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 6.59 10.31 15.51 19.65 24.81 27.16 31.12 32.73 34.59 39.66 43.24 51.01 71.6 81.16 101.28 121.01 138.13 182.25 226.82 274.74
Accumulated Precipitation Departure from Normal (in.) 2.81 1.57 1.74 1.87 4 4.52 6.71 6.29 5.52 7.15 6.43 10.37 17.2 17.91 20.1 17.28 16.49 20.14 24.28 31.74
Accumulated Precipitation Percent of Average 174 118 113 111 119 120 127 124 119 122 117 126 132 128 125 117 114 112 112 113
Accumulated Precipitation Percentile (non-exceedance) 90.1 70.9 67.9 67.3 78 80 87.2 84.7 80.9 85.5 81.9 91.4 96.5 96.2 96.3 91.6 89.4 90.5 92.2 95.5
Standardized Precipitation Index 1.29 0.55 0.46 0.45 0.77 0.84 1.14 1.02 0.87 1.06 0.91 1.37 1.81 1.78 1.78 1.38 1.25 1.31 1.42 1.7