| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.1 | 50.8 | 54.9 | 58.9 | 64.9 | 70.8 | 79.2 | 79.6 | 74.2 | 63.0 | 51.9 | 45.6 | 61.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.4 | 43.7 | 47.0 | 50.4 | 55.2 | 60.3 | 66.5 | 66.5 | 62.5 | 54.5 | 46.2 | 40.6 | 53.0 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.8 | 36.7 | 39.2 | 41.8 | 45.4 | 49.9 | 53.8 | 53.5 | 50.8 | 45.9 | 40.5 | 35.6 | 44.1 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.00 | 4.79 | 4.90 | 4.33 | 3.65 | 2.28 | 0.73 | 0.78 | 1.57 | 3.49 | 7.04 | 6.91 | 46.47 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 730. | 595. | 556. | 440. | 313. | 161. | 43. | 38. | 112. | 330. | 564. | 756. | 4638. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 22. | 90. | 86. | 36. | 3. | 0. | 0. | 244. |