| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.9 | 51.8 | 56.6 | 60.9 | 67.6 | 73.4 | 81.1 | 81.6 | 76.1 | 64.0 | 52.9 | 46.3 | 63.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 42.0 | 44.1 | 47.8 | 51.2 | 57.3 | 62.5 | 68.1 | 68.1 | 63.3 | 53.9 | 46.2 | 40.2 | 53.8 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 36.0 | 36.3 | 39.0 | 41.5 | 46.9 | 51.6 | 55.1 | 54.6 | 50.5 | 43.8 | 39.5 | 34.2 | 44.1 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.17 | 4.57 | 4.55 | 3.24 | 2.52 | 1.86 | 0.60 | 0.64 | 1.54 | 3.58 | 6.56 | 6.62 | 42.45 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 715. | 587. | 533. | 415. | 255. | 116. | 26. | 25. | 100. | 346. | 564. | 767. | 4447. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 14. | 41. | 122. | 121. | 49. | 2. | 0. | 0. | 349. |