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 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.) 1.96 3.7 6.97 8.59 12.18 14.3 20.82 26.31 32.56 39.83 42.24 45.42 52.67 63.59 97.85 117.84 145.84 190.39 237.27 305.73
Accumulated Precipitation Departure from Normal (in.) -1.76 -3.75 -4.06 -5.49 -5.12 -8.11 -7.62 -8.59 -7.19 -4 -4.99 -5.71 -9.49 -9.98 -4.42 -6.94 -7.6 -14.33 -18.72 -1.52
Accumulated Precipitation Percent of Average 53 50 63 61 70 64 73 75 82 91 89 89 85 86 96 94 95 93 93 100
Accumulated Precipitation Percentile (non-exceedance) 14.5 2.7 5.7 4.3 9.1 4.3 6.6 5.3 10.5 27 22.3 19.4 9.3 11.2 32.6 25.8 25.2 13.2 9.2 46.6
Standardized Precipitation Index -1.06 -1.93 -1.59 -1.72 -1.33 -1.72 -1.5 -1.62 -1.25 -0.61 -0.76 -0.86 -1.32 -1.22 -0.45 -0.65 -0.67 -1.12 -1.33 -0.09