Standardized Precipitation Index Table

Prairie Climate Division

Alabama, Climate Division 06

Precipitation Data Table

Time Scale in Months (As of the end of Jan. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 5.43 7.99 9.53 11.92 12.67 15.37 18.58 26.32 37.09 42.14 47.12 51.12 62.36 69.62 100.62 122.47 152.45 212.16 271.8 332.16
Accumulated Precipitation Departure from Normal (in.) 0.45 -2.02 -4.12 -4.4 -7.02 -8.42 -10.28 -6.68 0.06 0.38 -0.63 -1.84 -4.33 -7.25 -5.37 -7.54 -6.67 -0.17 6.28 13.41
Accumulated Precipitation Percent of Average 109 80 70 73 64 65 64 80 100 101 99 97 94 91 95 94 96 100 102 104
Accumulated Precipitation Percentile (non-exceedance) 63.5 28.2 14.4 14.4 5.5 3.2 1.4 10.5 52.5 54.4 48.4 42.3 31.5 22 32 27 30.9 50.5 65.6 78.4
Standardized Precipitation Index 0.35 -0.58 -1.06 -1.06 -1.6 -1.85 -2.2 -1.25 0.06 0.11 -0.04 -0.19 -0.48 -0.77 -0.47 -0.61 -0.5 0.01 0.4 0.79