Standardized Precipitation Index Table

Northeast Climate Division

Mississippi, Climate Division 03

Precipitation Data Table

Time Scale in Months (As of the end of Feb. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 2.08 7.12 8.96 11.8 15.91 18.65 20.89 23.67 31.92 39.83 46.58 53.38 67.58 78.32 104.93 124.12 159.65 211.82 282.32 343.16
Accumulated Precipitation Departure from Normal (in.) -2.84 -2.96 -6.7 -8.16 -7.18 -7.79 -9.05 -10.6 -6.51 -3.24 -1.64 -0.85 -2.42 -2.47 -3.6 -11.09 -3.31 -5.59 10.37 16.67
Accumulated Precipitation Percent of Average 42 71 57 59 69 71 70 69 83 92 97 98 97 97 97 92 98 97 104 105
Accumulated Precipitation Percentile (non-exceedance) 8.7 20.9 6.4 4.9 9.7 10 8 5.8 19.4 36.2 44.7 48.5 43.3 44 41.4 26.3 44 40.7 67.5 74
Standardized Precipitation Index -1.36 -0.81 -1.52 -1.65 -1.3 -1.28 -1.4 -1.57 -0.86 -0.35 -0.13 -0.04 -0.17 -0.15 -0.22 -0.63 -0.15 -0.23 0.45 0.64