Standardized Precipitation Index Table

Northeast Prairie Climate Division

Missouri, Climate Division 02

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.) 0.27 3.16 6.11 6.75 9.48 10.19 16.84 21 22.86 25.01 26.51 29.83 36.09 43.62 68.24 81.16 110.02 149.85 199.66 239.65
Accumulated Precipitation Departure from Normal (in.) -1.52 -0.49 0.38 -1.53 -1.9 -5.08 -2.11 -1.83 -4.48 -6.93 -9.2 -8.89 -8.32 -10.37 -9.23 -11.54 -6.15 -5 6.24 7.76
Accumulated Precipitation Percent of Average 15 87 107 82 83 67 89 92 84 78 74 77 81 81 88 88 95 97 103 103
Accumulated Precipitation Percentile (non-exceedance) 1 42.9 62.1 31.3 28.5 8.6 32.9 38 22.6 13.5 7.4 9 12.7 10.6 18.5 15 31.9 37.6 65.6 67.6
Standardized Precipitation Index -2.32 -0.18 0.31 -0.49 -0.57 -1.36 -0.44 -0.3 -0.75 -1.1 -1.44 -1.34 -1.14 -1.25 -0.9 -1.03 -0.47 -0.32 0.4 0.46