| Id | Month | Record High | Record Low | Daily Mean |
| 1 | Jan | 17.2 | -16.1 | 5.2 |
| 2 | Feb | 21.2 | -18.9 | 5.3 |
| 3 | Mar | 24.2 | -8.3 | 7.6 |
| 4 | Apr | 29.4 | -3.2 | 9.9 |
| 5 | May | 32.8 | -3.1 | 13.3 |
| 6 | Jun | 35.6 | -0.6 | 16.5 |
| 7 | Jul | 37.9 | 3.9 | 18.7 |
| 8 | Aug | 38.1 | 2.1 | 18.5 |
| 9 | Sep | 35.4 | 1.4 | 15.7 |
| 10 | Oct | 29.9 | -5.5 | 12.0 |
| 11 | Nov | 20.8 | -7.1 | 8.0 |
| 12 | Dec | 17.4 | -14.2 | 5.5 |