Standardized Precipitation Index Table

Northern Plateau Climate Division

New York, Climate Division 03

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.) 4.2 5.35 10.72 17.08 20.57 26 27.7 34.99 43.36 47.69 50.67 54.72 65.76 78.83 106.64 129.94 159.79 198.45 255.64 304.3
Accumulated Precipitation Departure from Normal (in.) 0.81 -1.06 0.85 3.33 2.8 4.14 1.71 4.85 8.94 9.14 8.29 8.81 9.99 11.11 14.9 16.33 22.2 15.09 26.47 29.36
Accumulated Precipitation Percent of Average 124 83 109 124 116 119 107 116 126 124 120 119 118 116 116 114 116 108 112 111
Accumulated Precipitation Percentile (non-exceedance) 75.8 28.1 68.1 90.4 83 88.4 68.9 89.1 97.5 97.2 95.4 95 96.1 95.5 96.9 96.7 98.3 89 96.3 95.9
Standardized Precipitation Index 0.7 -0.58 0.47 1.3 0.95 1.19 0.49 1.23 1.96 1.92 1.68 1.64 1.76 1.7 1.87 1.84 2.12 1.23 1.78 1.74