| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.2 | 51.1 | 56.2 | 60.8 | 67.0 | 73.2 | 82.3 | 82.8 | 76.9 | 64.2 | 52.2 | 45.6 | 63.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.7 | 42.9 | 46.7 | 50.2 | 55.3 | 60.4 | 66.8 | 66.9 | 61.9 | 52.7 | 44.9 | 39.7 | 52.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.2 | 34.8 | 37.1 | 39.5 | 43.5 | 47.6 | 51.4 | 51.1 | 47.0 | 41.2 | 37.6 | 33.8 | 41.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.87 | 5.43 | 4.99 | 3.33 | 2.74 | 1.50 | 0.54 | 0.61 | 1.29 | 3.25 | 7.72 | 7.83 | 46.10 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 753. | 617. | 569. | 446. | 307. | 157. | 36. | 31. | 121. | 382. | 603. | 784. | 4807. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 19. | 93. | 91. | 30. | 1. | 0. | 0. | 240. |