| Rank | Precipitation | Date |
|---|---|---|
| 1 | 8.0 cm | June 23, 1933 |
| 2 | 7.9 cm | June 14, 1966 |
| 3 | 7.7 cm | June 20, 1924 |
| 4 | 6.8 cm | September 13, 1995 |
| 5 | 6.5 cm | July 17, 2002 |
| 6 | 6.4 cm | June 10, 1903 |
| 7 | 6.3 cm | August 4, 1910 |
| 8 | 6.1 cm | June 6, 1905 |
| 9 | 5.9 cm | August 6, 1931 |
| 10 | 5.9 cm | August 27, 1989 |
| 11 | 5.8 cm | August 17, 2015 |
| 12 | 5.8 cm | August 12, 1964 |
| 13 | 5.8 cm | July 25, 1923 |
| 14 | 5.5 cm | September 18, 1914 |
| 15 | 5.4 cm | July 9, 1927 |
| 16 | 5.2 cm | June 28, 1966 |
| 17 | 5.2 cm | June 14, 1980 |
| 18 | 5.2 cm | October 27, 1998 |
| 19 | 5.1 cm | July 18, 2002 |
| 20 | 5.1 cm | May 24, 1907 |