| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.3 | 50.6 | 53.0 | 56.1 | 60.1 | 63.2 | 66.2 | 66.5 | 66.0 | 59.4 | 51.4 | 47.3 | 57.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 43.2 | 44.4 | 46.1 | 48.5 | 52.3 | 55.8 | 58.3 | 58.8 | 57.5 | 52.2 | 46.4 | 42.5 | 50.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 38.1 | 38.3 | 39.1 | 40.9 | 44.6 | 48.5 | 50.5 | 51.0 | 49.0 | 45.1 | 41.4 | 37.6 | 43.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 11.04 | 8.28 | 8.53 | 5.24 | 3.82 | 2.78 | 0.78 | 0.96 | 1.98 | 5.48 | 10.53 | 11.57 | 70.99 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 676. | 575. | 587. | 495. | 393. | 275. | 209. | 196. | 228. | 396. | 558. | 699. | 5288. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 1. | 2. | 2. | 3. | 1. | 0. | 0. | 10. |