| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.5 | 55.2 | 59.4 | 64.0 | 70.6 | 76.8 | 84.9 | 85.5 | 80.5 | 68.6 | 55.2 | 48.4 | 66.7 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 43.2 | 45.7 | 48.8 | 52.2 | 58.0 | 63.6 | 69.6 | 69.2 | 63.8 | 55.5 | 47.6 | 42.1 | 55.0 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 36.0 | 36.2 | 38.1 | 40.5 | 45.5 | 50.4 | 54.2 | 52.9 | 47.1 | 42.3 | 40.0 | 35.9 | 43.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 4.42 | 3.48 | 3.24 | 2.35 | 1.86 | 0.95 | 0.33 | 0.41 | 0.76 | 2.14 | 5.15 | 6.06 | 31.15 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 674. | 540. | 504. | 384. | 235. | 95. | 18. | 16. | 92. | 300. | 522. | 708. | 4089. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 19. | 53. | 159. | 147. | 56. | 4. | 0. | 0. | 439. |