| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 4.35 | 5.16 | 9.03 | 14.7 | 17.06 | 22.78 | 24.95 | 31 | 40.05 | 44.06 | 46.88 | 50.58 | 59.21 | 69.39 | 93.68 | 112.89 | 135.52 | 169.04 | 215.71 | 257.1 |
| Accumulated Precipitation Departure from Normal (in.) | 1.52 | -0.01 | 1.29 | 4.04 | 3.27 | 5.7 | 4.46 | 6.88 | 12.11 | 12.48 | 12.03 | 12.68 | 13.58 | 14.46 | 17.99 | 20.13 | 22.02 | 17.85 | 26.79 | 30.51 |
| Accumulated Precipitation Percent of Average | 154 | 100 | 117 | 138 | 124 | 133 | 122 | 129 | 143 | 140 | 135 | 133 | 130 | 126 | 124 | 122 | 119 | 112 | 114 | 113 |
| Accumulated Precipitation Percentile (non-exceedance) | 89.7 | 53.6 | 77.7 | 96.5 | 89.5 | 96 | 90.1 | 96.5 | 99.7 | 99.6 | 99.3 | 99 | 99.1 | 98.5 | 98.5 | 98.3 | 97.7 | 91 | 95.1 | 94.9 |
| Standardized Precipitation Index | 1.27 | 0.09 | 0.76 | 1.82 | 1.25 | 1.75 | 1.29 | 1.82 | 2.75 | 2.68 | 2.43 | 2.34 | 2.36 | 2.17 | 2.18 | 2.13 | 2 | 1.34 | 1.66 | 1.64 |