| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.6 | 38.9 | 50.1 | 59.6 | 68.6 | 78.6 | 86.1 | 84.1 | 74.1 | 60.7 | 45.0 | 34.0 | 59.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 21.6 | 26.1 | 36.5 | 44.9 | 53.5 | 62.5 | 70.1 | 68.3 | 59.1 | 47.0 | 33.0 | 22.0 | 45.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 8.5 | 13.2 | 22.9 | 30.3 | 38.4 | 46.5 | 54.1 | 52.5 | 44.2 | 33.3 | 20.9 | 10.0 | 31.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 0.79 | 0.96 | 1.18 | 1.14 | 1.55 | 1.15 | 1.03 | 1.16 | 1.85 | 1.81 | 0.91 | 0.90 | 14.43 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1347. | 1090. | 884. | 602. | 359. | 122. | 15. | 21. | 194. | 558. | 961. | 1333. | 7486. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 49. | 173. | 124. | 18. | 0. | 0. | 0. | 366. |