| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.5 | 53.0 | 58.3 | 63.6 | 70.4 | 76.0 | 83.3 | 83.7 | 78.0 | 65.1 | 53.1 | 46.5 | 65.0 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 42.5 | 45.1 | 49.0 | 53.3 | 59.2 | 64.3 | 69.9 | 70.1 | 65.1 | 55.5 | 46.7 | 41.0 | 55.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 36.5 | 37.1 | 39.8 | 42.9 | 47.9 | 52.6 | 56.5 | 56.4 | 52.2 | 45.9 | 40.3 | 35.5 | 45.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.78 | 4.62 | 4.67 | 3.47 | 2.46 | 1.74 | 0.65 | 0.72 | 1.61 | 3.61 | 6.56 | 7.32 | 44.21 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 697. | 559. | 494. | 355. | 205. | 80. | 14. | 10. | 69. | 300. | 549. | 744. | 4076. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 24. | 59. | 166. | 167. | 72. | 5. | 0. | 0. | 495. |