| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.4 | 45.3 | 50.6 | 55.1 | 65.0 | 73.6 | 84.9 | 84.2 | 76.4 | 63.4 | 48.1 | 40.4 | 60.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 31.3 | 33.8 | 38.7 | 42.9 | 51.1 | 57.4 | 66.8 | 65.8 | 57.3 | 47.1 | 36.7 | 30.4 | 46.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 20.1 | 22.2 | 26.7 | 30.7 | 37.2 | 41.1 | 48.7 | 47.3 | 38.2 | 30.8 | 25.3 | 20.3 | 32.4 |
| 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) | 1046. | 875. | 817. | 663. | 432. | 239. | 46. | 57. | 243. | 555. | 849. | 1074. | 6897. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 10. | 101. | 81. | 12. | 0. | 0. | 0. | 206. |