| Rank | Precipitation | Month |
|---|---|---|
| 1 | 3.7 inches | May 1980 |
| 2 | 3.2 inches | June 1995 |
| 3 | 3.2 inches | June 2010 |
| 4 | 2.8 inches | June 1993 |
| 5 | 2.8 inches | May 1981 |
| 6 | 2.7 inches | December 1977 |
| 7 | 2.7 inches | June 1992 |
| 8 | 2.7 inches | June 1991 |
| 9 | 2.6 inches | May 1995 |
| 10 | 2.5 inches | April 1971 |
| 11 | 2.5 inches | May 2004 |
| 12 | 2.5 inches | July 1977 |
| 13 | 2.5 inches | June 2020 |
| 14 | 2.5 inches | November 1970 |
| 15 | 2.5 inches | July 1975 |
| 16 | 2.4 inches | May 1977 |
| 17 | 2.4 inches | July 1987 |
| 18 | 2.4 inches | August 2014 |
| 19 | 2.4 inches | June 1977 |
| 19 | 2.4 inches | October 2000 |