| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.9 | 50.8 | 56.0 | 60.8 | 67.4 | 72.9 | 79.6 | 80.1 | 74.6 | 62.9 | 52.0 | 45.1 | 62.5 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 42.2 | 44.6 | 48.5 | 52.4 | 58.1 | 63.1 | 68.5 | 69.0 | 64.4 | 55.2 | 46.7 | 40.8 | 54.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 37.5 | 38.4 | 41.0 | 44.0 | 48.9 | 53.3 | 57.4 | 58.0 | 54.2 | 47.6 | 41.4 | 36.5 | 46.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.14 | 4.63 | 4.50 | 3.40 | 2.55 | 1.69 | 0.59 | 0.71 | 1.54 | 3.42 | 6.74 | 6.94 | 42.85 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 707. | 571. | 512. | 380. | 233. | 105. | 24. | 17. | 80. | 306. | 549. | 750. | 4235. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 21. | 48. | 133. | 142. | 62. | 4. | 0. | 0. | 413. |