Standardized Precipitation Index Table

Northwest Climate Division

South Carolina, Climate Division 02

Precipitation Data Table

Time Scale in Months (As of the end of Jan. 2026)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 1.88 3.8 4.62 8.33 10.25 17.34 21.04 24.72 31.99 35.97 38.4 42.54 51.16 65 90.11 113.91 140.6 190.84 236.3 299.55
Accumulated Precipitation Departure from Normal (in.) -2.51 -5.04 -7.51 -7.21 -9.09 -6.72 -7.8 -8.28 -4.85 -4.74 -7.27 -7.5 -11.11 -9.2 -10.07 -10.47 -9.76 -9.72 -14.44 -1.45
Accumulated Precipitation Percent of Average 43 43 38 54 53 72 73 75 87 88 84 85 82 88 90 92 94 95 94 100
Accumulated Precipitation Percentile (non-exceedance) 7.3 2.8 0.6 3.7 2.3 10.6 7.8 8.3 24.5 26.9 17.2 18.3 10 17.1 20 20.6 25.2 27.9 20.9 47.8
Standardized Precipitation Index -1.45 -1.91 -2.51 -1.79 -1.99 -1.25 -1.42 -1.38 -0.69 -0.61 -0.95 -0.9 -1.28 -0.95 -0.84 -0.82 -0.67 -0.59 -0.81 -0.05