Standardized Precipitation Index Table

Central Climate Division

Arkansas, Climate Division 05

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.) 5.24 7.42 16.37 19.65 21.99 27.59 28.85 30.97 35.34 39.78 43.83 50.65 71.48 84.77 108.55 132.57 157.98 216.93 285.03 350.78
Accumulated Precipitation Departure from Normal (in.) 0.21 -1.48 3.25 1.98 -0.12 1.72 -0.65 -1.95 -1.41 -1.03 -2.48 -0.93 6.8 7.31 5.36 3.5 3.16 10.39 26.83 40.97
Accumulated Precipitation Percent of Average 104 83 125 111 99 107 98 94 96 97 95 98 111 109 105 103 102 105 110 113
Accumulated Precipitation Percentile (non-exceedance) 59.8 35.7 80.2 69 52.6 63.5 49.1 41.2 44.6 46.8 39.6 47.8 76.7 75.5 67.7 61.1 59.3 72.8 91.2 97.2
Standardized Precipitation Index 0.25 -0.37 0.85 0.49 0.07 0.34 -0.02 -0.22 -0.14 -0.08 -0.26 -0.06 0.73 0.69 0.46 0.28 0.24 0.61 1.35 1.91