| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.1 | 55.4 | 56.9 | 58.7 | 62.3 | 65.2 | 67.9 | 68.6 | 68.1 | 64.0 | 57.2 | 53.8 | 61.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 48.4 | 48.5 | 49.5 | 51.1 | 54.4 | 57.5 | 60.0 | 60.5 | 59.5 | 56.0 | 50.6 | 47.6 | 53.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 41.7 | 41.6 | 42.1 | 43.5 | 46.5 | 49.7 | 52.1 | 52.4 | 50.9 | 48.0 | 44.0 | 41.4 | 46.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 11.44 | 10.27 | 10.11 | 6.66 | 3.72 | 1.88 | 0.40 | 0.76 | 1.43 | 4.91 | 11.70 | 13.78 | 77.06 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 515. | 462. | 481. | 417. | 329. | 228. | 158. | 142. | 170. | 281. | 432. | 539. | 4153. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 1. | 3. | 2. | 5. | 2. | 0. | 0. | 14. |