| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.9 | 49.4 | 52.9 | 58.1 | 63.3 | 67.3 | 72.3 | 73.4 | 69.6 | 59.2 | 49.3 | 44.2 | 58.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.6 | 42.0 | 44.5 | 48.2 | 53.2 | 57.3 | 61.4 | 62.0 | 58.5 | 50.9 | 43.6 | 39.1 | 50.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.3 | 34.6 | 36.2 | 38.3 | 43.0 | 47.4 | 50.4 | 50.7 | 47.4 | 42.6 | 37.9 | 33.9 | 41.5 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 18.27 | 12.71 | 13.54 | 9.21 | 5.78 | 3.91 | 2.47 | 2.59 | 4.03 | 11.80 | 18.63 | 16.78 | 119.72 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 756. | 644. | 634. | 504. | 370. | 237. | 134. | 112. | 202. | 437. | 642. | 804. | 5477. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 7. | 21. | 21. | 7. | 0. | 0. | 0. | 58. |