| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 3.99 | 6.83 | 9.59 | 11.08 | 11.76 | 14.67 | 17.36 | 20.79 | 25.57 | 27.81 | 33.69 | 42.74 | 59.19 | 74.79 | 96.01 | 123.52 | 145.35 | 203.37 | 254.63 | 311.84 |
| Accumulated Precipitation Departure from Normal (in.) | -1.31 | -3.46 | -4.57 | -7.28 | -11.16 | -12.69 | -13.72 | -13.9 | -12.54 | -14.13 | -12.32 | -8.82 | -6.56 | -4.23 | -7.18 | -7.15 | -9.51 | -3.27 | -3.74 | 1.67 |
| Accumulated Precipitation Percent of Average | 75 | 66 | 68 | 60 | 51 | 54 | 56 | 60 | 67 | 66 | 73 | 83 | 90 | 95 | 93 | 95 | 94 | 98 | 99 | 101 |
| Accumulated Precipitation Percentile (non-exceedance) | 36.2 | 17.9 | 13.6 | 4.7 | 0.7 | 0.9 | 1 | 1.2 | 2.9 | 2.1 | 4.8 | 14.1 | 26.3 | 36.6 | 29.1 | 31.2 | 27.2 | 43.5 | 43.1 | 54.1 |
| Standardized Precipitation Index | -0.35 | -0.92 | -1.1 | -1.68 | -2.45 | -2.37 | -2.32 | -2.25 | -1.9 | -2.04 | -1.67 | -1.08 | -0.63 | -0.34 | -0.55 | -0.49 | -0.61 | -0.16 | -0.17 | 0.1 |