| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.5 | 56.4 | 58.0 | 60.1 | 64.2 | 67.7 | 71.9 | 73.0 | 72.7 | 67.0 | 58.3 | 53.4 | 63.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 45.7 | 46.8 | 48.4 | 50.2 | 54.1 | 57.8 | 61.3 | 61.9 | 59.9 | 54.9 | 49.0 | 44.8 | 52.9 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 36.9 | 37.1 | 38.7 | 40.3 | 44.0 | 47.9 | 50.7 | 50.7 | 47.1 | 42.8 | 39.7 | 36.2 | 42.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 8.93 | 6.86 | 6.73 | 4.63 | 2.89 | 1.61 | 0.39 | 0.51 | 1.21 | 3.66 | 8.67 | 9.66 | 55.75 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 598. | 511. | 516. | 444. | 340. | 217. | 121. | 103. | 158. | 314. | 480. | 626. | 4430. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 1. | 6. | 6. | 5. | 1. | 0. | 0. | 22. |