| Rank | Precipitation | Month |
|---|---|---|
| 1 | 30.8 cm | October 1985 |
| 2 | 29.1 cm | January 1941 |
| 3 | 28.8 cm | January 1964 |
| 4 | 28.4 cm | October 1964 |
| 5 | 26.0 cm | December 1975 |
| 6 | 25.6 cm | October 1945 |
| 7 | 24.8 cm | November 1988 |
| 8 | 24.1 cm | January 2000 |
| 9 | 23.9 cm | December 2016 |
| 10 | 23.8 cm | October 2005 |
| 11 | 23.6 cm | December 1933 |
| 12 | 23.3 cm | February 1975 |
| 13 | 23.3 cm | January 1997 |
| 14 | 23.1 cm | January 1992 |
| 15 | 22.6 cm | December 1987 |
| 16 | 22.5 cm | October 1962 |
| 17 | 22.3 cm | February 2023 |
| 18 | 21.5 cm | September 2009 |
| 19 | 21.5 cm | October 1995 |
| 20 | 21.5 cm | January 2022 |