| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.8 | 50.9 | 56.3 | 61.3 | 68.0 | 73.8 | 82.3 | 82.8 | 77.8 | 64.9 | 51.6 | 44.8 | 63.5 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.9 | 43.2 | 47.0 | 50.6 | 56.2 | 61.2 | 66.8 | 67.0 | 63.0 | 53.9 | 45.0 | 39.5 | 52.9 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.1 | 35.5 | 37.6 | 39.9 | 44.4 | 48.5 | 51.4 | 51.3 | 48.2 | 42.9 | 38.5 | 34.1 | 42.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 7.65 | 5.67 | 4.87 | 3.17 | 2.14 | 1.52 | 0.42 | 0.54 | 1.16 | 3.08 | 7.70 | 9.05 | 46.97 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 746. | 610. | 560. | 432. | 283. | 144. | 37. | 32. | 104. | 347. | 598. | 792. | 4685. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 28. | 94. | 96. | 44. | 3. | 0. | 0. | 276. |