| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.8 | 51.5 | 57.5 | 63.6 | 71.4 | 81.1 | 89.2 | 89.1 | 82.4 | 71.0 | 56.0 | 46.7 | 67.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 38.2 | 41.0 | 45.6 | 50.8 | 58.0 | 66.1 | 73.0 | 72.6 | 66.7 | 56.4 | 44.3 | 37.4 | 54.3 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 28.6 | 30.4 | 33.8 | 38.0 | 44.7 | 51.0 | 56.7 | 56.2 | 51.0 | 41.8 | 32.7 | 28.2 | 41.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.54 | 6.66 | 5.15 | 2.79 | 1.66 | 0.65 | 0.38 | 0.11 | 0.65 | 2.11 | 4.58 | 5.45 | 36.73 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 831. | 673. | 600. | 426. | 233. | 66. | 7. | 5. | 62. | 282. | 619. | 854. | 4658. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 17. | 97. | 253. | 242. | 113. | 15. | 0. | 0. | 738. |