| Rank | Precipitation | Date |
|---|---|---|
| 1 | 9.2 cm | May 2, 2011 |
| 2 | 7.1 cm | June 8, 1949 |
| 3 | 7.0 cm | August 31, 2015 |
| 4 | 6.8 cm | May 18, 1927 |
| 5 | 6.8 cm | June 13, 1970 |
| 6 | 6.6 cm | June 11, 1988 |
| 7 | 6.1 cm | June 5, 1932 |
| 8 | 6.0 cm | July 14, 1935 |
| 9 | 5.8 cm | October 28, 1960 |
| 10 | 5.4 cm | December 28, 1947 |
| 11 | 5.3 cm | June 25, 1961 |
| 12 | 5.2 cm | July 12, 1999 |
| 13 | 5.1 cm | November 8, 1925 |
| 14 | 5.1 cm | May 21, 2014 |
| 15 | 5.0 cm | August 20, 1959 |
| 16 | 4.9 cm | September 9, 1973 |
| 17 | 4.9 cm | July 9, 1927 |
| 18 | 4.8 cm | September 29, 1999 |
| 19 | 4.6 cm | August 23, 1973 |
| 20 | 4.6 cm | November 18, 1970 |