| Month | Avg. High | Avg. Low |
|---|---|---|
| January | 21.3 °F | 0.5 °F |
| February | 25.4 °F | -0.2 °F |
| March | 36.9 °F | 9.8 °F |
| April | 49.7 °F | 24.1 °F |
| May | 64.1 °F | 37.2 °F |
| June | 73.3 °F | 46.8 °F |
| July | 77.0 °F | 50.4 °F |
| August | 75.0 °F | 47.9 °F |
| September | 67.1 °F | 40.6 °F |
| October | 53.2 °F | 30.5 °F |
| November | 37.9 °F | 20.5 °F |
| December | 26.3 °F | 8.5 °F |
| Year | 50.8 °F | 26.4 °F |