| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 49.6 | 52.7 | 55.9 | 59.8 | 65.3 | 69.4 | 74.9 | 75.9 | 73.2 | 63.4 | 53.5 | 48.1 | 61.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.9 | 43.0 | 45.7 | 48.7 | 53.8 | 58.0 | 62.3 | 62.6 | 59.3 | 51.7 | 44.9 | 40.7 | 51.1 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.1 | 33.4 | 35.5 | 37.6 | 42.3 | 46.6 | 49.7 | 49.3 | 45.4 | 40.1 | 36.4 | 33.2 | 40.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 16.07 | 11.11 | 11.31 | 8.22 | 4.83 | 3.82 | 1.55 | 2.12 | 3.82 | 10.14 | 16.81 | 15.82 | 105.62 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 718. | 615. | 598. | 489. | 352. | 220. | 115. | 104. | 184. | 411. | 601. | 755. | 5163. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 10. | 32. | 29. | 13. | 0. | 0. | 0. | 90. |