| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.3 | 44.9 | 51.9 | 57.1 | 67.3 | 77.2 | 86.2 | 84.7 | 75.4 | 63.3 | 50.1 | 41.3 | 61.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 31.7 | 33.9 | 38.7 | 42.9 | 50.8 | 58.5 | 66.1 | 64.2 | 55.7 | 46.5 | 37.6 | 30.4 | 46.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 22.1 | 22.9 | 25.4 | 28.7 | 34.3 | 39.9 | 46.0 | 43.8 | 36.1 | 29.7 | 25.0 | 19.4 | 31.1 |
| 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) | 1032. | 871. | 817. | 663. | 445. | 215. | 62. | 86. | 284. | 574. | 823. | 1074. | 6946. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 22. | 96. | 62. | 7. | 0. | 0. | 0. | 192. |