Standardized Precipitation Index Table

Champlain Valley Climate Division

New York, Climate Division 07

Precipitation Data Table

Time Scale in Months (As of the end of May 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 4.75 7.89 10.94 14.44 15.89 19.1 21.85 23.98 26.12 30.76 35.59 40.59 51.82 62.18 91.5 111.14 132.84 177.11 211.26 253
Accumulated Precipitation Departure from Normal (in.) 1.47 1.55 1.77 2.93 1.81 2.1 1.72 0.58 -0.69 0.31 1.32 2.67 4.74 7.25 15.66 18.32 19.16 25.68 22.11 26.09
Accumulated Precipitation Percent of Average 145 124 119 125 113 112 109 102 97 101 104 107 110 113 121 120 117 117 112 111
Accumulated Precipitation Percentile (non-exceedance) 84.8 78.9 79.3 88.1 76.2 77 70.8 57.9 45.6 54.7 62.8 71.7 80.5 88 96.9 97.5 95.9 96.9 91.7 92.1
Standardized Precipitation Index 1.03 0.8 0.82 1.18 0.71 0.74 0.55 0.2 -0.11 0.12 0.33 0.57 0.86 1.18 1.87 1.96 1.74 1.87 1.38 1.41