| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.0 | 44.5 | 52.5 | 61.6 | 70.0 | 80.4 | 87.9 | 85.9 | 77.2 | 65.1 | 51.0 | 42.6 | 63.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 28.8 | 30.8 | 38.2 | 46.5 | 55.4 | 65.2 | 72.0 | 70.6 | 61.8 | 49.7 | 36.4 | 28.7 | 48.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 14.6 | 17.0 | 23.8 | 31.4 | 40.8 | 49.9 | 56.1 | 55.3 | 46.3 | 34.2 | 21.8 | 14.7 | 33.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | |||||||||||||
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1122. | 959. | 833. | 556. | 304. | 80. | 11. | 15. | 151. | 477. | 858. | 1127. | 6492. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 7. | 84. | 227. | 188. | 54. | 2. | 0. | 0. | 563. |