| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 52.9 | 55.1 | 56.3 | 58.2 | 61.9 | 65.0 | 68.8 | 69.5 | 69.4 | 64.5 | 57.0 | 52.4 | 61.0 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 45.6 | 46.6 | 47.8 | 49.5 | 53.3 | 56.7 | 59.6 | 60.3 | 58.9 | 54.4 | 49.1 | 45.1 | 52.3 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 38.2 | 38.2 | 39.2 | 40.8 | 44.7 | 48.4 | 50.4 | 51.1 | 48.3 | 44.3 | 41.2 | 37.7 | 43.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 10.25 | 8.36 | 8.38 | 5.25 | 3.77 | 2.43 | 0.60 | 0.72 | 1.60 | 5.04 | 11.55 | 11.84 | 69.79 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 603. | 514. | 535. | 465. | 363. | 250. | 170. | 148. | 190. | 330. | 477. | 618. | 4663. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 1. | 2. | 2. | 5. | 2. | 0. | 0. | 13. |