| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.1 | 50.9 | 56.1 | 60.8 | 67.2 | 73.2 | 81.7 | 82.6 | 77.0 | 64.7 | 52.6 | 45.8 | 63.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.6 | 42.8 | 46.7 | 50.2 | 55.6 | 60.8 | 66.7 | 66.9 | 62.3 | 53.2 | 45.2 | 39.6 | 52.6 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.2 | 34.7 | 37.3 | 39.6 | 44.1 | 48.5 | 51.8 | 51.1 | 47.7 | 41.7 | 37.9 | 33.4 | 41.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.40 | 5.11 | 4.44 | 2.91 | 2.31 | 1.52 | 0.49 | 0.53 | 1.25 | 3.10 | 6.94 | 7.71 | 42.71 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 755. | 622. | 567. | 444. | 297. | 150. | 40. | 35. | 115. | 367. | 592. | 787. | 4772. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 26. | 94. | 93. | 36. | 1. | 0. | 0. | 256. |