| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.5 | 52.7 | 57.1 | 61.5 | 67.6 | 73.6 | 82.4 | 83.3 | 77.2 | 65.2 | 53.0 | 46.3 | 64.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.5 | 43.7 | 46.9 | 50.3 | 55.6 | 60.8 | 66.7 | 66.7 | 61.9 | 53.8 | 45.5 | 40.0 | 52.8 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.5 | 34.7 | 36.7 | 39.2 | 43.6 | 48.0 | 50.9 | 50.2 | 46.7 | 42.4 | 38.0 | 33.8 | 41.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 9.05 | 7.17 | 7.38 | 6.12 | 4.40 | 3.07 | 0.77 | 0.89 | 2.19 | 5.43 | 10.63 | 10.45 | 67.55 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 728. | 596. | 561. | 440. | 299. | 152. | 44. | 38. | 124. | 349. | 585. | 773. | 4689. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 26. | 95. | 92. | 32. | 2. | 0. | 0. | 255. |