| Rank | Precipitation | Date |
|---|---|---|
| 1 | 8.0 cm | May 18, 1994 |
| 2 | 7.8 cm | August 13, 1878 |
| 3 | 7.7 cm | August 26, 1881 |
| 4 | 7.6 cm | June 23, 1973 |
| 5 | 7.1 cm | June 26, 1960 |
| 6 | 7.0 cm | September 21, 1875 |
| 7 | 6.8 cm | June 11, 1876 |
| 8 | 6.8 cm | September 8, 1958 |
| 9 | 6.8 cm | July 14, 1887 |
| 10 | 6.6 cm | May 2, 1881 |
| 11 | 6.5 cm | June 6, 1882 |
| 12 | 6.5 cm | August 7, 1978 |
| 13 | 6.5 cm | November 6, 1886 |
| 14 | 6.4 cm | August 21, 1880 |
| 15 | 6.2 cm | September 9, 1934 |
| 16 | 6.1 cm | September 17, 2006 |
| 17 | 6.1 cm | August 9, 1910 |
| 18 | 6.0 cm | May 24, 1983 |
| 19 | 5.9 cm | June 10, 1876 |
| 20 | 5.9 cm | October 1, 1882 |