| Rank | Precipitation | Date |
|---|---|---|
| 1 | 7.8 cm | June 25, 1953 |
| 2 | 6.8 cm | September 18, 1969 |
| 3 | 6.7 cm | August 7, 1978 |
| 4 | 6.2 cm | June 15, 1966 |
| 5 | 6.1 cm | July 10, 1989 |
| 6 | 5.8 cm | July 7, 1987 |
| 7 | 5.8 cm | June 3, 1992 |
| 8 | 5.7 cm | July 25, 1963 |
| 9 | 5.6 cm | August 6, 1997 |
| 10 | 5.6 cm | August 5, 2011 |
| 11 | 5.2 cm | May 18, 1994 |
| 12 | 5.1 cm | November 20, 2015 |
| 13 | 5.1 cm | September 26, 1994 |
| 14 | 5.1 cm | July 15, 1965 |
| 15 | 4.7 cm | July 21, 2017 |
| 16 | 4.7 cm | August 19, 1966 |
| 17 | 4.6 cm | June 23, 1973 |
| 18 | 4.6 cm | August 12, 2008 |
| 19 | 4.5 cm | June 22, 1970 |
| 20 | 4.4 cm | May 28, 1965 |