Standardized Precipitation Index Table

Southern Mountains Climate Division

North Carolina, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Nov. 2019)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 3.58 11.87 12.8 16.78 22.17 29.73 33.69 41.14 45.27 53.89 59.54 69.64 89.95 106.87 141.03 169.34 199.52 246.06 303.97 360.84
Accumulated Precipitation Departure from Normal (in.) -0.35 3.88 0.73 -0.46 -0.58 2.05 1.47 4.41 3.01 6.95 7.78 12.9 21.14 22.47 27.63 28.36 29.55 19.59 20.92 21.26
Accumulated Precipitation Percent of Average 91 149 106 97 97 107 105 112 107 115 115 123 131 127 124 120 117 109 107 106
Accumulated Precipitation Percentile (non-exceedance) 49.7 88.1 61.2 49.7 48.3 66.4 61.6 75.8 68.4 82.9 84.2 93.5 98.5 98.2 98.4 97.8 97.4 88.4 88.4 87
Standardized Precipitation Index -0.01 1.18 0.28 -0.01 -0.04 0.42 0.3 0.7 0.48 0.95 1 1.51 2.17 2.1 2.15 2.02 1.95 1.2 1.19 1.13