Standardized Precipitation Index Table

North Central Climate Division

South Carolina, Climate Division 03

Precipitation Data Table

Time Scale in Months (As of the end of May 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 6.69 9.63 12.63 14.72 15.92 19.22 21.69 21.93 30.11 36.49 45.72 47.9 63.61 79.61 98.01 122.22 142.97 183.14 229.46 280.69
Accumulated Precipitation Departure from Normal (in.) 3.24 2.85 1.68 -0.01 -2.59 -2.96 -3.26 -5.99 -1.43 0.22 4.48 2.52 7.29 11.95 7.19 9.22 6.77 1.48 2.35 8.14
Accumulated Precipitation Percent of Average 194 142 115 100 86 87 87 79 95 101 111 106 113 118 108 108 105 101 101 103
Accumulated Precipitation Percentile (non-exceedance) 94.3 88.7 72.4 53.4 29.9 29.7 28.8 15.3 43.6 53.8 75.9 66.2 83.5 91.6 78.4 80.9 73.1 55.6 57.6 71.6
Standardized Precipitation Index 1.58 1.21 0.6 0.09 -0.53 -0.53 -0.56 -1.02 -0.16 0.09 0.7 0.42 0.98 1.38 0.79 0.87 0.62 0.14 0.19 0.57