| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.9 | 51.3 | 56.6 | 62.1 | 69.0 | 74.9 | 82.9 | 82.9 | 77.2 | 64.2 | 52.4 | 45.5 | 63.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.7 | 43.2 | 47.1 | 51.0 | 57.0 | 62.1 | 67.7 | 67.6 | 62.8 | 53.5 | 45.3 | 39.6 | 53.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.4 | 35.1 | 37.6 | 39.9 | 45.0 | 49.4 | 52.4 | 52.3 | 48.4 | 42.7 | 38.1 | 33.7 | 42.5 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.59 | 5.07 | 4.60 | 2.62 | 1.89 | 1.29 | 0.39 | 0.53 | 1.31 | 3.14 | 6.89 | 7.40 | 41.72 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 755. | 610. | 555. | 421. | 261. | 121. | 30. | 30. | 109. | 360. | 593. | 787. | 4631. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 13. | 35. | 112. | 110. | 43. | 2. | 0. | 0. | 316. |