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 Apr. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 3.93 9.96 11.1 13.74 16.77 18.51 22.43 24.93 26.94 31 35.64 45.49 53.83 62.42 84.25 113.38 144.26 190.19 247.2 289.43
Accumulated Precipitation Departure from Normal (in.) 0.14 2.69 1.02 0.61 0.16 -1.55 -1.38 -2.91 -5.14 -5.51 -5.12 0.64 -1.09 -2.54 -5.48 3.48 9.57 10.68 22.93 20.47
Accumulated Precipitation Percent of Average 104 137 110 105 101 92 94 90 84 85 87 101 98 96 94 103 107 106 110 108
Accumulated Precipitation Percentile (non-exceedance) 58.9 89.9 68.7 61.2 54.6 35.4 39.7 29 17.6 17.2 20.8 55.8 45.3 38.6 30.7 63.3 76.7 75.1 88.7 83.5
Standardized Precipitation Index 0.23 1.27 0.49 0.28 0.11 -0.37 -0.26 -0.55 -0.93 -0.95 -0.81 0.15 -0.12 -0.29 -0.5 0.34 0.73 0.68 1.21 0.97