Standardized Precipitation Index Table

Trans Pecos Climate Division

Texas, Climate Division 05

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.) 0.17 0.38 0.57 1.43 2.62 3.4 5.08 5.45 6.05 7.23 7.25 7.63 8.36 12.98 20.37 22.1 31.34 37.64 50.6 63.29
Accumulated Precipitation Departure from Normal (in.) -0.29 -0.52 -0.82 -0.5 -0.59 -1.77 -1.98 -3.54 -4.43 -4.38 -4.9 -4.9 -5.52 -4.7 -4.69 -8.12 -6.26 -12.53 -12.19 -12.1
Accumulated Precipitation Percent of Average 37 42 41 74 82 66 72 61 58 62 60 61 60 73 81 73 83 75 81 84
Accumulated Precipitation Percentile (non-exceedance) 34.7 26 18.7 42 43.4 23.9 24.9 9.9 6 8.2 6.6 7.1 6.1 16.4 20.1 9.5 18.6 5.1 8.3 10.9
Standardized Precipitation Index -0.39 -0.64 -0.89 -0.2 -0.17 -0.71 -0.68 -1.29 -1.55 -1.39 -1.51 -1.47 -1.55 -0.98 -0.84 -1.31 -0.89 -1.64 -1.39 -1.23