| Month | Avg max | Avg min | Average | High | Date | Low | Date |
|---|---|---|---|---|---|---|---|
| Jan | 5.8 | 2.1 | 4.0 | 9.9 | 25 | -3.8 | 31 |
| Feb | 9.7 | 3.7 | 6.3 | 15.7 | 26 | -1.8 | 03 |
| Mar | 10.8 | 4.9 | 7.6 | 16.2 | 28 | 2.2 | 11 |
| Apr | 13.6 | 4.8 | 8.7 | 23.7 | 21 | -0.2 | 14 |
| May | 17.2 | 9.1 | 12.9 | 20.9 | 23 | 5.9 | 14 |
| Jun | 17.5 | 11.3 | 15.0 | 31.1 | 29 | 8.7 | 11 |
| Jul | 22.8 | 14.6 | 18.4 | 31.1 | 25 | 11.4 | 03 |
| Aug | 21.1 | 13.8 | 16.9 | 28.2 | 25 | 10.9 | 13 |
| Sep | 18.0 | 11.7 | 14.5 | 24.2 | 21 | 8.6 | 18 |
| Oct | 12.4 | 8.1 | 10.3 | 16.3 | 01 | 4.6 | 28 |
| Nov | 8.1 | 4.7 | 6.5 | 13.9 | 01 | 0.3 | 09 |
| Dec | 8.1 | 4.1 | 6.1 | 11.9 | 10 | -0.1 | 02 |
| 2019 | 13.8 | 7.8 | 10.4 | 31.1 | Jun | -3.8 | Jan |