| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.6 | 48.2 | 54.2 | 59.5 | 66.3 | 71.8 | 78.3 | 79.6 | 73.9 | 61.2 | 49.2 | 42.0 | 60.7 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 38.0 | 40.8 | 45.5 | 49.8 | 55.7 | 61.0 | 66.5 | 67.2 | 62.2 | 52.4 | 43.1 | 37.1 | 51.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 32.5 | 33.4 | 36.9 | 40.1 | 45.1 | 50.2 | 54.6 | 54.8 | 50.5 | 43.6 | 37.1 | 32.2 | 42.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.96 | 4.98 | 4.87 | 3.56 | 2.92 | 1.98 | 0.72 | 0.92 | 1.79 | 3.65 | 7.07 | 7.22 | 46.64 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 835. | 677. | 603. | 457. | 300. | 152. | 53. | 41. | 126. | 392. | 655. | 865. | 5156. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 11. | 32. | 98. | 109. | 42. | 1. | 0. | 0. | 294. |