Standardized Precipitation Index Table

Southern Piedmont Climate Division

North Carolina, Climate Division 05

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.) 5.4 6.85 13.6 20.53 22.64 23.76 25.75 31.41 35.09 39.53 42.47 48.84 60.35 70.57 93.25 111.2 131.45 193.19 241.88 305.85
Accumulated Precipitation Departure from Normal (in.) 1.23 -1.06 1.96 5.26 4.41 2.32 0.51 1.46 0.14 0.38 -0.4 2.5 2.39 2.77 0.55 -2.95 -7.61 7.63 10.02 27.68
Accumulated Precipitation Percent of Average 130 87 117 134 124 111 102 105 100 101 99 105 104 104 101 97 95 104 104 110
Accumulated Precipitation Percentile (non-exceedance) 78.7 37.3 74.9 90.8 84.7 70.7 56.6 62.6 53.1 54.6 49.3 66.5 64.3 65.1 53.7 39.7 24.5 73.9 77.7 97.2
Standardized Precipitation Index 0.8 -0.32 0.67 1.33 1.02 0.54 0.16 0.32 0.08 0.11 -0.02 0.43 0.37 0.39 0.09 -0.26 -0.69 0.64 0.76 1.91