Standardized Precipitation Index Table

Pocono Mountains (R) Climate Division

Pennsylvania, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Mar. 2024)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 5.25 7.4 14.17 21.38 23.92 27.8 33.56 40.59 48.45 53.13 54.83 59.48 67.71 80.02 107.41 127.23 159.99 204.43 254.98 320.67
Accumulated Precipitation Departure from Normal (in.) 1.78 1.11 4.8 8.54 7.61 7.73 9.42 12.22 15.64 16.06 13.73 14.6 13.5 15.1 17.74 17.49 25.51 25.23 31.13 52.17
Accumulated Precipitation Percent of Average 151 118 151 166 147 138 139 143 148 143 133 133 125 123 120 116 119 114 114 119
Accumulated Precipitation Percentile (non-exceedance) 90.1 75 97.9 99.7 98.5 96.8 97.4 98.5 99.4 99.3 98.1 98.3 96.9 96 95.4 92.9 96.7 93.8 94.9 99.2
Standardized Precipitation Index 1.29 0.67 2.03 2.7 2.17 1.85 1.94 2.16 2.53 2.47 2.07 2.13 1.87 1.75 1.69 1.47 1.84 1.54 1.64 2.39