Standardized Precipitation Index Table

Lower Valley Climate Division

Texas, Climate Division 10

Precipitation Data Table

Time Scale in Months (As of the end of May 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 3.51 3.85 8.6 8.89 10.12 11.83 12.38 14.44 20.73 21.54 27.27 31.89 35.18 38.84 49.21 60.52 71.81 107.75 139.17 161.68
Accumulated Precipitation Departure from Normal (in.) 0.89 -0.25 3.46 2.63 2.66 3.09 2.18 1.77 3.66 2.43 6.28 8.26 6.44 6.48 2 4.53 0.94 13.09 20.73 19.46
Accumulated Precipitation Percent of Average 134 94 167 142 136 135 121 114 121 113 130 135 122 120 104 108 101 114 117 114
Accumulated Precipitation Percentile (non-exceedance) 75 53.6 89.5 83 81.3 81.9 73.8 68.8 76.6 68.9 84.5 89.3 82.5 80.9 60.7 68 55.3 81.7 88.8 85.1
Standardized Precipitation Index 0.67 0.09 1.25 0.95 0.89 0.91 0.64 0.49 0.72 0.49 1.02 1.24 0.93 0.87 0.27 0.47 0.13 0.9 1.22 1.04