| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.9 | 58.3 | 60.9 | 65.0 | 69.5 | 73.6 | 78.4 | 80.2 | 78.3 | 69.7 | 58.6 | 52.0 | 66.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 46.1 | 48.4 | 50.4 | 53.3 | 57.6 | 61.7 | 66.1 | 67.1 | 64.6 | 58.1 | 50.1 | 44.8 | 55.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 38.3 | 38.5 | 39.9 | 41.7 | 45.7 | 49.9 | 53.8 | 54.1 | 50.9 | 46.4 | 41.6 | 37.5 | 44.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 13.99 | 10.18 | 10.36 | 6.81 | 4.42 | 3.07 | 0.73 | 0.95 | 2.28 | 5.98 | 14.53 | 15.66 | 88.96 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 586. | 465. | 453. | 351. | 238. | 117. | 30. | 16. | 60. | 220. | 447. | 628. | 3610. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 9. | 20. | 64. | 82. | 48. | 4. | 0. | 0. | 229. |