Standardized Precipitation Index Table

Prairie Climate Division

Alabama, Climate Division 06

Precipitation Data Table

Time Scale in Months (As of the end of Mar. 2024)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 8.07 12.44 20.95 23.57 26.71 28.53 31.32 34.22 40.07 46.4 49.97 55.05 71.83 82.76 111.95 137.97 173.05 227.46 288.26 347.7
Accumulated Precipitation Departure from Normal (in.) 2.07 1.22 4.74 2.3 1.79 0.92 0.33 -0.9 -0.13 2.09 1.7 2.04 2.65 2.09 5.89 4.22 13.94 15.2 22.87 29.18
Accumulated Precipitation Percent of Average 135 111 129 111 107 103 101 97 100 105 104 104 104 103 106 103 109 107 109 109
Accumulated Precipitation Percentile (non-exceedance) 79.4 66.6 86.8 70.6 65.4 59 54.7 46.4 51.3 64.1 61.3 62 63.1 60.1 71.2 64.7 85.7 85 91.5 95
Standardized Precipitation Index 0.82 0.43 1.12 0.54 0.39 0.23 0.12 -0.09 0.03 0.36 0.29 0.31 0.33 0.25 0.56 0.38 1.07 1.03 1.37 1.64