| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.4 | 55.6 | 55.7 | 58.1 | 61.4 | 64.1 | 67.5 | 68.3 | 67.9 | 64.3 | 58.0 | 54.6 | 60.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 46.9 | 47.4 | 47.9 | 49.8 | 53.3 | 56.4 | 59.4 | 59.6 | 58.6 | 54.5 | 50.0 | 46.7 | 52.6 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 38.5 | 39.2 | 40.0 | 41.5 | 45.1 | 48.6 | 51.3 | 50.9 | 49.3 | 44.8 | 42.0 | 38.8 | 44.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | |||||||||||||
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 560. | 493. | 532. | 456. | 364. | 260. | 174. | 168. | 194. | 325. | 450. | 567. | 4542. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 2. | 1. | 0. | 0. | 4. |