Standardized Precipitation Index Table

Low Rolling Plains Climate Division

Texas, Climate Division 02

Precipitation Data Table

Time Scale in Months (As of the end of Aug. 2022)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 3.14 3.88 6.33 8.62 9.19 9.54 10.26 10.49 10.52 10.78 12.66 13.19 23.17 31.9 39.89 52.06 61.05 94.71 111.55 138.58
Accumulated Precipitation Departure from Normal (in.) 0.94 -0.5 -1.06 -2.19 -3.65 -4.53 -4.79 -5.35 -6.22 -7.15 -7.58 -9.76 -7.18 -5.15 -6.15 -8.05 -8.04 2.53 -3.64 0.36
Accumulated Precipitation Percent of Average 142 89 86 80 72 68 68 66 63 60 63 57 76 86 87 87 88 103 97 100
Accumulated Precipitation Percentile (non-exceedance) 77.9 46.6 40.2 27.6 17.2 11.8 11.5 9.7 6.9 5.2 5.9 2.1 11.6 23 20.9 16.8 18.7 61.4 37.1 52.4
Standardized Precipitation Index 0.77 -0.08 -0.25 -0.59 -0.95 -1.18 -1.2 -1.3 -1.49 -1.63 -1.57 -2.03 -1.2 -0.74 -0.81 -0.96 -0.89 0.29 -0.33 0.06