Standardized Precipitation Index Table

Southeastern Climate Division

Vermont, Climate Division 03

Precipitation Data Table

Time Scale in Months (As of the end of Jul. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 4.21 6.63 9.36 14.2 17.47 20.87 23.37 28.7 32.01 38.04 40.22 43.95 57.47 68.42 100.74 123.44 145.58 193.22 234.72 275.56
Accumulated Precipitation Departure from Normal (in.) 0.03 -1.56 -2.68 -1.56 -1.82 -1.42 -2.22 -0.57 -1.12 1.13 -0.53 -0.7 0.76 1.46 11.4 11.81 11.7 14.8 11.79 8.06
Accumulated Precipitation Percent of Average 101 81 78 90 91 94 91 98 97 103 99 98 101 102 113 111 109 108 105 103
Accumulated Precipitation Percentile (non-exceedance) 55.7 28.1 19.5 35.4 32.9 37.7 31.2 47 43.2 59.6 48.4 47.4 55.9 58.9 87.8 85.2 81.5 81.9 73.4 65
Standardized Precipitation Index 0.14 -0.58 -0.86 -0.37 -0.44 -0.31 -0.49 -0.08 -0.17 0.24 -0.04 -0.07 0.15 0.22 1.17 1.04 0.9 0.91 0.63 0.39