| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 9.4 | 12.6 | 15.35 | 17.73 | 18.56 | 22.42 | 25.22 | 25.4 | 26.89 | 32.46 | 36.4 | 38.64 | 53.56 | 70.2 | 101.42 | 119.9 | 141.84 | 196.59 | 246.11 | 294.6 |
| Accumulated Precipitation Departure from Normal (in.) | 5.17 | 4.45 | 3.45 | 2.83 | 0.28 | 0.35 | -0.48 | -4.08 | -6.86 | -5.84 | -6.64 | -8.72 | -5.68 | 0.72 | 6.57 | 3 | -0.37 | 7 | 9.2 | 10.37 |
| Accumulated Precipitation Percent of Average | 222 | 155 | 129 | 119 | 102 | 102 | 98 | 86 | 80 | 85 | 85 | 82 | 90 | 101 | 107 | 103 | 100 | 104 | 104 | 104 |
| Accumulated Precipitation Percentile (non-exceedance) | 98.3 | 95.3 | 88.2 | 82.1 | 55.7 | 55.8 | 48.1 | 21.4 | 10.2 | 17.3 | 16.1 | 10.4 | 24.1 | 55 | 72.9 | 60.9 | 50.3 | 66.9 | 68.9 | 68.9 |
| Standardized Precipitation Index | 2.11 | 1.68 | 1.19 | 0.92 | 0.14 | 0.15 | -0.05 | -0.79 | -1.27 | -0.94 | -0.99 | -1.26 | -0.7 | 0.12 | 0.61 | 0.28 | 0.01 | 0.44 | 0.49 | 0.49 |