| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.8 | 35.6 | 48.8 | 59.1 | 68.3 | 78.5 | 88.6 | 87.2 | 76.6 | 62.9 | 45.8 | 33.3 | 59.7 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 21.8 | 25.6 | 37.6 | 46.5 | 54.7 | 63.3 | 71.7 | 70.2 | 60.1 | 48.1 | 35.2 | 24.3 | 46.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 12.8 | 15.6 | 26.5 | 34.0 | 41.2 | 48.2 | 54.7 | 53.1 | 43.7 | 33.2 | 24.5 | 15.2 | 33.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.40 | 1.38 | 1.71 | 1.91 | 2.03 | 1.25 | 0.72 | 0.77 | 1.43 | 1.77 | 1.52 | 1.58 | 17.47 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1339. | 1103. | 848. | 554. | 324. | 111. | 12. | 17. | 173. | 526. | 896. | 1263. | 7166. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 62. | 218. | 177. | 28. | 0. | 0. | 0. | 492. |