| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 49.0 | 52.8 | 58.3 | 63.0 | 69.3 | 74.7 | 81.0 | 81.4 | 76.5 | 64.7 | 53.5 | 47.0 | 64.3 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.9 | 44.0 | 47.9 | 51.8 | 57.4 | 62.5 | 67.6 | 67.6 | 63.1 | 54.0 | 45.9 | 40.4 | 53.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.7 | 35.1 | 37.5 | 40.6 | 45.6 | 50.4 | 54.2 | 53.8 | 49.6 | 43.3 | 38.2 | 33.8 | 43.1 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.11 | 4.47 | 4.06 | 2.99 | 2.29 | 1.77 | 0.56 | 0.64 | 1.39 | 3.12 | 6.36 | 6.82 | 40.58 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 718. | 589. | 530. | 398. | 251. | 114. | 31. | 29. | 106. | 344. | 574. | 762. | 4447. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 17. | 41. | 112. | 110. | 47. | 3. | 0. | 0. | 330. |