| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 6.89 | 9.52 | 18.48 | 24.1 | 25.49 | 26.72 | 28.41 | 33.16 | 36.6 | 42.75 | 45.85 | 52.92 | 67.03 | 79.59 | 101.08 | 123.37 | 146.05 | 204.85 | 257.43 | 322.26 |
| Accumulated Precipitation Departure from Normal (in.) | 1.91 | 0.17 | 4.7 | 5.84 | 3.92 | 1.71 | -0.37 | -0.33 | -1.66 | 0.31 | -0.39 | 2.8 | 3.16 | 4.42 | 0.8 | -1.92 | -4.38 | 4.15 | 6.63 | 21.33 |
| Accumulated Precipitation Percent of Average | 138 | 102 | 134 | 132 | 118 | 107 | 99 | 99 | 96 | 101 | 99 | 106 | 105 | 106 | 101 | 98 | 97 | 102 | 103 | 107 |
| Accumulated Precipitation Percentile (non-exceedance) | 81.9 | 56.6 | 88.5 | 89.2 | 79.1 | 64.6 | 50.5 | 50.6 | 42.5 | 53.9 | 50.1 | 65.2 | 65.1 | 68.8 | 54.3 | 45.3 | 38.7 | 61.3 | 65.4 | 86.7 |
| Standardized Precipitation Index | 0.91 | 0.16 | 1.2 | 1.24 | 0.81 | 0.37 | 0.01 | 0.01 | -0.19 | 0.1 | 0 | 0.39 | 0.39 | 0.49 | 0.11 | -0.12 | -0.29 | 0.29 | 0.39 | 1.11 |