| Rank | Precipitation | Date |
|---|---|---|
| 1 | 11.4 cm | July 31, 1953 |
| 2 | 10.6 cm | July 14, 1937 |
| 3 | 8.5 cm | July 3, 1990 |
| 4 | 8.0 cm | June 26, 1974 |
| 5 | 7.8 cm | June 27, 1965 |
| 6 | 7.1 cm | May 30, 1902 |
| 7 | 6.8 cm | August 18, 1915 |
| 8 | 6.7 cm | July 11, 1978 |
| 9 | 6.4 cm | June 30, 1931 |
| 10 | 6.3 cm | August 17, 1994 |
| 11 | 6.3 cm | August 20, 1911 |
| 12 | 6.0 cm | August 7, 2003 |
| 13 | 6.0 cm | August 1, 1976 |
| 14 | 5.9 cm | July 6, 1988 |
| 15 | 5.8 cm | May 30, 1926 |
| 16 | 5.7 cm | July 16, 1949 |
| 17 | 5.7 cm | July 17, 1942 |
| 18 | 5.6 cm | July 3, 1891 |
| 19 | 5.6 cm | July 10, 1929 |
| 19 | 5.6 cm | June 23, 1903 |