| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.9 | 51.0 | 55.7 | 60.3 | 66.7 | 71.9 | 78.4 | 79.4 | 74.5 | 63.4 | 52.3 | 45.5 | 62.2 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.0 | 42.1 | 46.2 | 50.1 | 55.9 | 60.9 | 65.9 | 66.0 | 61.0 | 52.3 | 44.8 | 38.8 | 52.1 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 33.1 | 33.1 | 36.7 | 39.8 | 45.2 | 49.8 | 53.5 | 52.6 | 47.6 | 41.3 | 37.3 | 32.2 | 41.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 5.92 | 4.35 | 4.21 | 3.20 | 2.71 | 1.91 | 0.69 | 0.74 | 1.61 | 3.38 | 6.51 | 6.40 | 41.63 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 775. | 643. | 583. | 449. | 290. | 151. | 53. | 53. | 144. | 393. | 606. | 811. | 4950. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 26. | 83. | 84. | 26. | 1. | 0. | 0. | 229. |