| Rank | Precipitation | Date |
|---|---|---|
| 1 | 7.9 cm | May 23, 1978 |
| 2 | 7.1 cm | May 11, 2000 |
| 3 | 7.1 cm | June 3, 1992 |
| 4 | 6.9 cm | May 29, 2016 |
| 5 | 6.5 cm | August 3, 1968 |
| 6 | 5.7 cm | July 27, 2019 |
| 7 | 5.7 cm | August 11, 1958 |
| 8 | 5.5 cm | August 8, 1994 |
| 9 | 5.3 cm | August 27, 2002 |
| 10 | 5.2 cm | June 1, 1961 |
| 11 | 5.2 cm | June 14, 1936 |
| 12 | 5.0 cm | June 27, 1990 |
| 13 | 5.0 cm | July 22, 1955 |
| 14 | 4.7 cm | July 22, 2016 |
| 15 | 4.5 cm | July 7, 1989 |
| 16 | 4.5 cm | June 9, 2010 |
| 17 | 4.4 cm | August 9, 1938 |
| 18 | 4.3 cm | May 31, 2018 |
| 19 | 4.1 cm | July 30, 2008 |
| 20 | 4.0 cm | June 9, 1965 |