| Rank | Precipitation | Month |
|---|---|---|
| 1 | 36.1 inches | March 2006 |
| 2 | 22.9 inches | December 1968 |
| 3 | 22.2 inches | December 1992 |
| 4 | 19.5 inches | December 2008 |
| 5 | 18.5 inches | November 1955 |
| 6 | 18.2 inches | March 2012 |
| 7 | 18.0 inches | October 1982 |
| 8 | 17.6 inches | January 1956 |
| 9 | 16.2 inches | November 1995 |
| 10 | 16.1 inches | January 1957 |
| 11 | 15.6 inches | March 2020 |
| 12 | 14.5 inches | March 1951 |
| 13 | 14.5 inches | December 1987 |
| 14 | 14.2 inches | January 1962 |
| 15 | 14.1 inches | January 1982 |
| 16 | 14.1 inches | January 1975 |
| 17 | 13.1 inches | March 1962 |
| 18 | 12.8 inches | December 1967 |
| 19 | 12.6 inches | December 1951 |
| 20 | 12.6 inches | May 1977 |