| Rank | Precipitation | Month |
|---|---|---|
| 1 | 17.3 cm | May 1984 |
| 2 | 16.6 cm | July 2021 |
| 3 | 16.5 cm | August 1969 |
| 4 | 16.3 cm | July 2014 |
| 5 | 16.3 cm | August 2010 |
| 6 | 15.9 cm | September 1993 |
| 7 | 15.6 cm | September 1998 |
| 8 | 15.5 cm | June 1985 |
| 9 | 15.2 cm | October 1998 |
| 10 | 15.2 cm | June 1971 |
| 11 | 15.0 cm | November 2023 |
| 12 | 14.8 cm | August 2023 |
| 13 | 14.8 cm | December 1993 |
| 14 | 14.6 cm | February 2020 |
| 15 | 14.6 cm | May 2014 |
| 16 | 14.5 cm | August 2006 |
| 17 | 14.4 cm | October 1984 |
| 18 | 14.3 cm | September 1937 |
| 19 | 14.3 cm | July 1988 |
| 20 | 14.2 cm | January 1995 |