Standardized Precipitation Index Table

Southern Climate Division

Texas, Climate Division 09

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.) 1.17 3.14 3.87 6.32 8.85 10 12.49 13.02 13.7 17.66 21.02 22.05 23.08 29.42 40.26 46.37 64.64 85.62 101.35 129.33
Accumulated Precipitation Departure from Normal (in.) 0.03 0.95 0.51 1.67 2.03 -0.36 0.1 -1.22 -3.02 -2.01 -0.44 -0.58 -2.88 -3.56 -4.98 -9.28 -3.29 -5.05 -12.13 -7.04
Accumulated Precipitation Percent of Average 103 143 115 136 130 96 101 91 82 90 98 97 89 89 89 83 95 94 89 95
Accumulated Precipitation Percentile (non-exceedance) 63.3 78.3 67.1 78.3 76.9 51.4 55.4 42.9 28.2 37.5 50.1 49.2 35.2 33.8 28.9 16.9 38.9 34.2 16.2 30.8
Standardized Precipitation Index 0.34 0.78 0.44 0.78 0.74 0.03 0.14 -0.18 -0.58 -0.32 0 -0.02 -0.38 -0.42 -0.56 -0.96 -0.28 -0.41 -0.98 -0.5