Standardized Precipitation Index Table

Great Lakes Climate Division

New York, Climate Division 09

Precipitation Data Table

Time Scale in Months (As of the end of Feb. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 1.53 5.34 9.36 13.17 17.87 19.22 21.58 23.88 27.66 32.44 35.98 37.99 47.19 55.99 79.99 97.38 119.35 160.29 204.22 239.59
Accumulated Precipitation Departure from Normal (in.) -0.88 0.06 0.88 1.29 2.48 0.35 -0.64 -1.77 -1.4 0.13 0.56 -0.16 0.54 -1.06 3.66 2.11 4.83 7.58 13.33 10.53
Accumulated Precipitation Percent of Average 63 101 110 111 116 102 97 93 95 100 102 100 101 98 105 102 104 105 107 105
Accumulated Precipitation Percentile (non-exceedance) 13.8 54.9 73.1 75.3 84.4 56.8 43.8 31.9 37 52.9 56.8 49.9 56.1 43.7 72 61.5 71.3 75.4 83.8 75.3
Standardized Precipitation Index -1.09 0.12 0.62 0.68 1.01 0.17 -0.16 -0.47 -0.33 0.07 0.17 0 0.15 -0.16 0.58 0.29 0.56 0.69 0.99 0.68