| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.4 | 53.0 | 57.9 | 62.2 | 69.1 | 74.9 | 83.1 | 83.5 | 78.0 | 66.6 | 53.3 | 47.0 | 64.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 42.0 | 44.5 | 47.8 | 51.3 | 57.4 | 62.8 | 69.1 | 68.7 | 63.6 | 54.9 | 46.3 | 41.3 | 54.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.6 | 36.0 | 37.8 | 40.5 | 45.7 | 50.7 | 55.1 | 53.9 | 49.2 | 43.1 | 39.4 | 35.6 | 43.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 5.30 | 4.17 | 3.68 | 2.96 | 2.20 | 1.10 | 0.37 | 0.43 | 0.96 | 2.49 | 6.00 | 6.70 | 36.36 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 713. | 574. | 532. | 410. | 249. | 105. | 17. | 17. | 89. | 318. | 559. | 735. | 4319. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 39. | 144. | 132. | 47. | 3. | 0. | 0. | 380. |