Standardized Precipitation Index Table

Central Coastal Plain Climate Division

North Carolina, Climate Division 07

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.) 5.6 7.16 10.08 16.58 19.22 20.25 25.7 33.25 38.18 42.27 45.83 51.03 60.84 68.71 95.15 111.51 141.94 210.3 261.37 330.26
Accumulated Precipitation Departure from Normal (in.) 1.7 -0.47 -1.31 1.61 1.18 -1.03 -0.68 0.86 -0.64 -1.41 -1.91 -0.13 -1.72 -3.73 -7.17 -12.14 -11.62 5.38 5.3 23.06
Accumulated Precipitation Percent of Average 144 94 88 111 107 95 97 103 98 97 96 100 97 95 93 90 92 103 102 108
Accumulated Precipitation Percentile (non-exceedance) 88.4 45.2 34.5 71 64.4 43.1 47.5 58.4 47.3 42.1 39.5 50.9 41.7 32.5 21.8 10.9 13.8 67.5 65.4 93.8
Standardized Precipitation Index 1.2 -0.12 -0.4 0.55 0.37 -0.17 -0.06 0.21 -0.07 -0.2 -0.27 0.02 -0.21 -0.45 -0.78 -1.23 -1.09 0.45 0.4 1.54