| Month | Avg. High | Avg. Low |
|---|---|---|
| January | 29.8 °F | 4.8 °F |
| February | 34.5 °F | 6.1 °F |
| March | 44.1 °F | 14.3 °F |
| April | 51.1 °F | 23.1 °F |
| May | 60.3 °F | 30.5 °F |
| June | 69.1 °F | 36.0 °F |
| July | 79.5 °F | 40.2 °F |
| August | 78.5 °F | 38.0 °F |
| September | 67.9 °F | 31.5 °F |
| October | 51.9 °F | 24.3 °F |
| November | 37.4 °F | 13.3 °F |
| December | 28.6 °F | 4.6 °F |
| Year | 53.2 °F | 22.4 °F |