| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 5.38 | 7.55 | 17.08 | 26.03 | 28.91 | 29.99 | 33.31 | 34.82 | 38.3 | 41.73 | 45.87 | 52.07 | 62.9 | 77.21 | 108.28 | 122.52 | 178.08 | 240.03 | 305.87 | 366.62 |
| Accumulated Precipitation Departure from Normal (in.) | 1.03 | -1.28 | 3.32 | 7.09 | 5.96 | 3.31 | 1.7 | -2.96 | -6.22 | -8.48 | -9.41 | -7.72 | -10.63 | -9.27 | -11.4 | -23.92 | -1.57 | 0.49 | 6.52 | 7.45 |
| Accumulated Precipitation Percent of Average | 124 | 85 | 124 | 137 | 126 | 112 | 105 | 92 | 86 | 83 | 83 | 87 | 86 | 89 | 90 | 84 | 99 | 100 | 102 | 102 |
| Accumulated Precipitation Percentile (non-exceedance) | 71.4 | 39.1 | 79.3 | 91.4 | 83.6 | 71.6 | 62.2 | 36.5 | 20.4 | 15.4 | 14.5 | 21.5 | 16.6 | 21.9 | 19.4 | 4.7 | 47.4 | 52.1 | 62.4 | 62.7 |
| Standardized Precipitation Index | 0.57 | -0.28 | 0.82 | 1.36 | 0.98 | 0.57 | 0.31 | -0.35 | -0.83 | -1.02 | -1.06 | -0.79 | -0.97 | -0.78 | -0.86 | -1.67 | -0.06 | 0.05 | 0.32 | 0.32 |