| Rank | Temperature | Date |
|---|---|---|
| 1 | 3.8 °C | July 8, 1943 |
| 2 | 4.2 °C | June 19, 1987 |
| 3 | 4.5 °C | June 27, 1990 |
| 4 | 4.7 °C | July 1, 1997 |
| 4 | 4.7 °C | August 11, 1987 |
| 4 | 4.7 °C | July 7, 1967 |
| 7 | 4.8 °C | June 19, 1992 |
| 7 | 4.8 °C | June 25, 1963 |
| 9 | 5.0 °C | July 21, 1995 |
| 9 | 5.0 °C | June 18, 1987 |
| 9 | 5.0 °C | July 4, 1972 |
| 9 | 5.0 °C | June 27, 1902 |
| 13 | 5.1 °C | July 9, 1996 |
| 13 | 5.1 °C | July 14, 1958 |
| 15 | 5.2 °C | June 27, 1989 |
| 15 | 5.2 °C | August 9, 1951 |
| 17 | 5.3 °C | July 2, 1910 |
| 18 | 5.4 °C | July 15, 1989 |
| 18 | 5.4 °C | June 15, 1946 |
| 20 | 5.6 °C | July 2, 2022 |
| 20 | 5.6 °C | July 9, 1992 |
| 20 | 5.6 °C | July 25, 1986 |
| 20 | 5.6 °C | June 30, 1983 |
| 20 | 5.6 °C | June 29, 1983 |
| 20 | 5.6 °C | June 23, 1963 |
| 20 | 5.6 °C | June 13, 1941 |