| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.4 | 43.6 | 51.5 | 58.7 | 67.7 | 76.9 | 87.5 | 85.3 | 76.3 | 62.7 | 46.7 | 38.0 | 61.3 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 32.3 | 35.8 | 42.4 | 48.4 | 56.3 | 64.5 | 74.4 | 72.8 | 63.3 | 52.6 | 39.0 | 31.4 | 51.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 25.2 | 27.9 | 33.3 | 38.0 | 45.0 | 52.0 | 61.3 | 60.4 | 50.3 | 42.5 | 31.3 | 24.9 | 41.1 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | |||||||||||||
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1014. | 819. | 701. | 502. | 294. | 115. | 13. | 18. | 132. | 394. | 780. | 1040. | 5821. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 26. | 99. | 303. | 261. | 81. | 9. | 0. | 0. | 782. |