| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.2 | 50.1 | 54.7 | 61.5 | 71.1 | 80.1 | 88.7 | 88.2 | 82.1 | 70.0 | 53.7 | 46.8 | 66.3 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 36.1 | 38.2 | 41.7 | 47.0 | 55.1 | 62.5 | 69.0 | 67.7 | 61.9 | 52.3 | 41.3 | 35.9 | 50.8 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 25.0 | 26.3 | 28.7 | 32.5 | 39.1 | 45.0 | 49.3 | 47.1 | 41.6 | 34.6 | 28.8 | 25.1 | 35.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 8.65 | 7.73 | 7.11 | 3.68 | 2.67 | 1.10 | 0.20 | 0.27 | 0.80 | 2.72 | 5.92 | 8.37 | 49.22 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 896. | 750. | 722. | 540. | 322. | 127. | 30. | 33. | 135. | 397. | 712. | 900. | 5566. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 15. | 54. | 154. | 115. | 40. | 3. | 0. | 0. | 381. |