| Rank | Precipitation | Date |
|---|---|---|
| 1 | 5.9 cm | July 21, 1961 |
| 2 | 5.8 cm | July 28, 1988 |
| 3 | 5.2 cm | June 24, 1988 |
| 3 | 5.2 cm | August 15, 1970 |
| 5 | 5.1 cm | July 28, 2011 |
| 6 | 5.0 cm | August 18, 2014 |
| 7 | 4.8 cm | August 26, 1995 |
| 8 | 4.7 cm | August 7, 1987 |
| 9 | 4.7 cm | August 28, 1980 |
| 10 | 4.5 cm | August 5, 1966 |
| 11 | 4.5 cm | July 22, 1984 |
| 12 | 4.4 cm | July 30, 2007 |
| 13 | 4.4 cm | August 6, 1967 |
| 14 | 4.2 cm | August 6, 2017 |
| 15 | 4.2 cm | August 5, 1967 |
| 16 | 4.1 cm | June 12, 1965 |
| 17 | 3.9 cm | October 19, 1970 |
| 18 | 3.9 cm | July 24, 1993 |
| 19 | 3.8 cm | June 16, 1960 |
| 20 | 3.7 cm | July 22, 2005 |
| 20 | 3.7 cm | July 12, 1996 |