| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.6 | 36.0 | 48.6 | 58.9 | 68.5 | 79.3 | 89.7 | 88.2 | 77.1 | 61.8 | 44.4 | 31.8 | 59.7 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 22.8 | 26.9 | 38.0 | 46.3 | 54.4 | 63.4 | 72.1 | 71.1 | 61.2 | 48.6 | 35.1 | 24.2 | 47.1 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 15.0 | 17.8 | 27.4 | 33.6 | 40.4 | 47.5 | 54.6 | 54.0 | 45.2 | 35.5 | 25.8 | 16.7 | 34.5 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.73 | 1.74 | 2.20 | 2.28 | 2.51 | 1.39 | 0.89 | 0.88 | 1.47 | 2.01 | 1.74 | 1.90 | 20.74 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1308. | 1067. | 837. | 563. | 332. | 111. | 10. | 13. | 154. | 507. | 897. | 1263. | 7061. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 63. | 232. | 202. | 39. | 0. | 0. | 0. | 540. |