Standardized Precipitation Index Table

Northeastern Climate Division

Vermont, 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.) 5.5 6.28 9.95 15.59 17.93 22.72 26 32.37 42.19 47.82 49.9 53.84 62.63 73.5 98.38 117.19 138.83 175.39 227.41 274.14
Accumulated Precipitation Departure from Normal (in.) 2.48 0.65 1.4 3.71 2.44 3.43 2.83 5.08 10.5 11.93 10.36 11.09 11.34 11.49 12.97 12.46 10.71 4.62 13.93 18
Accumulated Precipitation Percent of Average 182 111 116 131 116 118 112 119 133 133 126 126 122 119 115 112 108 103 107 107
Accumulated Precipitation Percentile (non-exceedance) 96.6 69.3 78.1 93.7 80.7 84.5 78.2 89.2 98.8 99.1 97.4 97.5 97.1 94.5 93.3 89.5 82.9 63.8 80.1 82.5
Standardized Precipitation Index 1.83 0.5 0.78 1.53 0.87 1.02 0.78 1.24 2.27 2.38 1.95 1.96 1.89 1.6 1.5 1.25 0.95 0.35 0.84 0.93