| Rank | Precipitation | Date |
|---|---|---|
| 1 | 7.5 cm | July 9, 1954 |
| 2 | 6.2 cm | July 31, 1970 |
| 3 | 6.0 cm | July 1, 1989 |
| 4 | 5.9 cm | May 7, 1978 |
| 5 | 5.5 cm | June 19, 2002 |
| 6 | 5.3 cm | July 22, 1972 |
| 7 | 5.2 cm | August 19, 1997 |
| 8 | 5.2 cm | July 15, 2001 |
| 9 | 4.9 cm | December 20, 1993 |
| 10 | 4.9 cm | June 5, 2003 |
| 11 | 4.7 cm | July 28, 1972 |
| 12 | 4.6 cm | August 20, 1970 |
| 13 | 4.6 cm | April 17, 2009 |
| 14 | 4.6 cm | July 22, 1957 |
| 15 | 4.6 cm | June 9, 2018 |
| 16 | 4.5 cm | July 8, 1954 |
| 17 | 4.4 cm | January 25, 1995 |
| 18 | 4.4 cm | June 15, 2007 |
| 19 | 4.2 cm | August 24, 1984 |
| 20 | 4.2 cm | May 29, 1998 |