| Rank | Precipitation | Date |
|---|---|---|
| 1 | 9.3 cm | May 10, 1951 |
| 2 | 8.5 cm | September 24, 1931 |
| 3 | 8.5 cm | May 17, 1991 |
| 4 | 8.1 cm | July 17, 2021 |
| 5 | 7.8 cm | June 25, 1979 |
| 6 | 7.7 cm | May 13, 2003 |
| 7 | 7.6 cm | May 19, 1911 |
| 8 | 7.6 cm | August 12, 1959 |
| 9 | 7.4 cm | July 23, 1925 |
| 10 | 7.1 cm | June 5, 1965 |
| 11 | 7.0 cm | October 26, 1930 |
| 12 | 6.8 cm | June 30, 1975 |
| 13 | 6.8 cm | June 22, 2009 |
| 14 | 6.7 cm | July 7, 1946 |
| 15 | 6.6 cm | June 18, 1944 |
| 16 | 6.5 cm | July 14, 1907 |
| 17 | 6.5 cm | July 6, 1997 |
| 18 | 6.3 cm | July 7, 1997 |
| 19 | 6.3 cm | July 12, 1937 |
| 20 | 6.2 cm | May 24, 2014 |