| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.0 | 51.3 | 56.3 | 61.1 | 67.3 | 71.8 | 77.8 | 78.9 | 74.3 | 63.1 | 52.1 | 45.5 | 62.3 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.1 | 43.2 | 47.1 | 50.7 | 56.2 | 60.7 | 65.5 | 66.0 | 62.0 | 53.7 | 45.7 | 40.0 | 52.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.3 | 35.1 | 38.0 | 40.4 | 45.1 | 49.6 | 53.3 | 53.1 | 49.6 | 44.3 | 39.2 | 34.6 | 43.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.62 | 4.90 | 4.68 | 3.79 | 3.18 | 2.26 | 0.83 | 1.15 | 2.05 | 4.01 | 7.71 | 6.80 | 47.98 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 739. | 610. | 553. | 428. | 281. | 149. | 53. | 43. | 122. | 352. | 580. | 773. | 4684. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 20. | 70. | 74. | 30. | 1. | 0. | 0. | 204. |