Standardized Precipitation Index Table

Southeast (S) Climate Division

Arizona, Climate Division 07

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.) 1.49 3.22 4.86 5.18 5.49 6.77 8.7 9.85 9.85 10.33 10.33 11.07 15.55 18.72 28.58 32.98 43.37 50.73 66.98 83.23
Accumulated Precipitation Departure from Normal (in.) 0.49 1.12 1.54 1.05 0.47 0.25 -0.65 -2.31 -2.7 -2.44 -2.8 -2.93 -1.77 -1.81 0.54 -1.56 1.34 -5.29 -3.09 -0.91
Accumulated Precipitation Percent of Average 149 153 146 125 109 104 93 81 79 81 79 79 90 91 102 95 103 91 96 99
Accumulated Precipitation Percentile (non-exceedance) 78.1 81.4 80.8 72.8 63.6 59.1 46 24.6 20.8 23.8 20.6 19.6 34.5 36.4 56.7 41.4 60.4 24.3 37.1 47.7
Standardized Precipitation Index 0.78 0.89 0.87 0.61 0.35 0.23 -0.1 -0.69 -0.81 -0.71 -0.82 -0.86 -0.4 -0.35 0.17 -0.22 0.26 -0.7 -0.33 -0.06