| Rank | Precipitation | Date |
|---|---|---|
| 1 | 8.2 cm | August 1, 1872 |
| 2 | 8.0 cm | August 17, 2021 |
| 3 | 6.5 cm | August 10, 1951 |
| 4 | 6.2 cm | September 17, 1983 |
| 5 | 5.9 cm | July 5, 1997 |
| 6 | 5.8 cm | August 4, 1905 |
| 7 | 5.8 cm | August 3, 1906 |
| 8 | 5.7 cm | July 30, 1861 |
| 9 | 5.7 cm | July 10, 1890 |
| 10 | 5.6 cm | July 23, 1939 |
| 11 | 5.5 cm | August 12, 1869 |
| 12 | 5.4 cm | June 12, 1981 |
| 13 | 5.3 cm | July 16, 1927 |
| 14 | 5.2 cm | July 6, 1899 |
| 15 | 5.1 cm | July 30, 1870 |
| 16 | 4.9 cm | July 9, 1914 |
| 17 | 4.7 cm | August 21, 1986 |
| 17 | 4.7 cm | August 18, 1863 |
| 19 | 4.7 cm | June 7, 1986 |
| 20 | 4.6 cm | August 19, 1985 |