| Rank | Precipitation | Date |
|---|---|---|
| 1 | 7.1 cm | June 15, 1966 |
| 2 | 6.5 cm | May 23, 1978 |
| 3 | 5.6 cm | August 31, 2008 |
| 4 | 5.6 cm | May 12, 1970 |
| 5 | 5.4 cm | April 5, 1968 |
| 6 | 5.3 cm | May 24, 1983 |
| 7 | 5.3 cm | June 23, 1975 |
| 8 | 5.2 cm | October 3, 2006 |
| 9 | 5.1 cm | August 31, 2002 |
| 9 | 5.1 cm | May 30, 2000 |
| 11 | 5.0 cm | July 22, 1995 |
| 12 | 5.0 cm | July 3, 1978 |
| 13 | 4.9 cm | August 12, 2008 |
| 14 | 4.8 cm | February 6, 1958 |
| 15 | 4.7 cm | June 1, 1961 |
| 15 | 4.7 cm | July 1, 1958 |
| 17 | 4.7 cm | August 7, 1978 |
| 18 | 4.6 cm | July 10, 1989 |
| 19 | 4.6 cm | July 29, 2013 |
| 20 | 4.5 cm | July 26, 1980 |