Standardized Precipitation Index Table

Upper Susquehanna Climate Division

Pennsylvania, Climate Division 06

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.) 1.16 6.28 11.54 13.13 16.78 20.99 28.02 34.11 38.24 40.25 43.43 45.98 54.51 67.08 86.77 109.02 135.52 173.83 220.12 280.98
Accumulated Precipitation Departure from Normal (in.) -1.16 1.43 3.9 2.52 2.83 3.34 6.53 8.59 8.73 6.93 6.76 6.34 7.21 9.76 7.49 12.06 16.58 15.28 21.99 43.31
Accumulated Precipitation Percent of Average 50 129 151 124 120 119 130 134 130 121 118 116 115 117 109 112 114 110 111 118
Accumulated Precipitation Percentile (non-exceedance) 10.9 83.2 95.6 84.5 83.1 83.3 93.8 96.3 96 91.1 89.6 87.9 88.8 91.1 81 88 92 86 90.8 98.8
Standardized Precipitation Index -1.23 0.96 1.71 1.02 0.96 0.96 1.54 1.79 1.75 1.35 1.26 1.17 1.22 1.35 0.88 1.17 1.4 1.08 1.33 2.26