| Month | Avg. High | Avg. Low |
|---|---|---|
| January | 19.8 °F | -1.7 °F |
| February | 25.7 °F | 1.6 °F |
| March | 38.7 °F | 15.5 °F |
| April | 53.2 °F | 29.1 °F |
| May | 66.7 °F | 42.5 °F |
| June | 76.0 °F | 53.0 °F |
| July | 80.2 °F | 57.5 °F |
| August | 78.4 °F | 54.6 °F |
| September | 69.9 °F | 46.2 °F |
| October | 55.4 °F | 34.2 °F |
| November | 38.3 °F | 21.0 °F |
| December | 25.0 °F | 7.7 °F |
| Year | 52.4 °F | 30.2 °F |