| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.5 | 50.5 | 54.8 | 59.0 | 64.9 | 70.0 | 78.4 | 79.4 | 74.0 | 62.4 | 50.2 | 43.6 | 61.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 39.1 | 41.6 | 44.8 | 48.3 | 53.5 | 58.2 | 63.7 | 63.5 | 58.7 | 50.8 | 43.0 | 38.0 | 50.3 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 32.6 | 32.8 | 34.9 | 37.5 | 42.1 | 46.4 | 49.0 | 47.6 | 43.4 | 39.1 | 35.8 | 32.4 | 39.5 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 8.18 | 6.57 | 6.85 | 5.94 | 4.80 | 3.41 | 0.91 | 1.10 | 2.22 | 5.21 | 9.94 | 9.33 | 64.46 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 804. | 654. | 625. | 503. | 361. | 215. | 86. | 89. | 200. | 442. | 660. | 837. | 5475. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 11. | 46. | 42. | 11. | 0. | 0. | 0. | 114. |