| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.1 | 35.8 | 42.1 | 50.4 | 61.8 | 73.6 | 80.4 | 78.4 | 70.4 | 58.1 | 42.6 | 33.4 | 55.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 18.5 | 20.9 | 28.4 | 36.4 | 45.8 | 54.2 | 60.7 | 59.2 | 51.7 | 41.6 | 29.1 | 19.9 | 38.9 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 3.8 | 6.0 | 14.7 | 22.4 | 29.7 | 34.8 | 40.9 | 39.9 | 33.1 | 25.1 | 15.6 | 6.4 | 22.8 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.08 | 1.08 | 1.14 | 1.29 | 1.44 | 1.25 | 1.56 | 2.16 | 1.89 | 1.42 | 1.14 | 1.31 | 16.76 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1443. | 1235. | 1135. | 858. | 597. | 325. | 146. | 187. | 398. | 725. | 1077. | 1398. | 9523. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 1. | 11. | 5. | 0. | 0. | 0. | 0. | 18. |