| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.8 | 44.1 | 50.0 | 55.9 | 63.7 | 71.2 | 80.8 | 80.9 | 73.9 | 60.4 | 45.3 | 38.0 | 58.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 33.6 | 35.6 | 40.0 | 44.3 | 50.9 | 57.2 | 63.8 | 63.2 | 56.9 | 47.7 | 38.1 | 32.6 | 47.1 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 27.3 | 27.1 | 29.9 | 32.8 | 38.1 | 43.1 | 46.8 | 45.6 | 39.9 | 35.0 | 31.0 | 27.2 | 35.4 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 10.90 | 7.99 | 7.72 | 5.60 | 4.47 | 3.05 | 0.93 | 0.78 | 2.04 | 5.36 | 11.79 | 11.61 | 72.24 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 975. | 823. | 777. | 619. | 441. | 249. | 94. | 103. | 252. | 536. | 805. | 1004. | 6680. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 14. | 57. | 48. | 9. | 0. | 0. | 0. | 133. |