| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.1 | 49.1 | 51.4 | 54.8 | 59.5 | 63.1 | 67.4 | 68.6 | 66.2 | 58.2 | 50.3 | 46.0 | 56.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.6 | 42.1 | 44.1 | 46.7 | 51.3 | 55.3 | 58.9 | 59.6 | 56.6 | 50.0 | 44.2 | 40.4 | 49.3 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 36.0 | 35.2 | 36.8 | 38.6 | 43.1 | 47.5 | 50.5 | 50.5 | 46.9 | 41.8 | 38.1 | 34.7 | 41.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 14.61 | 10.35 | 10.83 | 7.85 | 5.11 | 3.50 | 1.98 | 2.49 | 3.82 | 10.49 | 15.52 | 12.99 | 99.54 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 727. | 640. | 648. | 549. | 426. | 294. | 194. | 175. | 256. | 465. | 624. | 764. | 5762. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 3. | 7. | 6. | 2. | 0. | 0. | 0. | 19. |