| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.0 | 30.8 | 39.0 | 46.7 | 56.7 | 66.9 | 76.9 | 76.4 | 66.1 | 51.6 | 35.2 | 25.8 | 50.0 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 13.3 | 15.8 | 24.5 | 32.9 | 42.2 | 50.6 | 57.6 | 55.9 | 46.9 | 36.0 | 22.7 | 13.0 | 34.4 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | -0.4 | 0.8 | 10.1 | 19.1 | 27.8 | 34.3 | 38.2 | 35.5 | 27.7 | 20.3 | 10.2 | 0.2 | 18.8 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 3.53 | 2.71 | 2.56 | 2.33 | 2.61 | 2.36 | 1.62 | 1.50 | 1.67 | 2.04 | 3.10 | 3.96 | 29.99 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1603. | 1378. | 1254. | 963. | 705. | 432. | 237. | 282. | 543. | 901. | 1269. | 1612. | 11178. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 6. | 2. | 0. | 0. | 0. | 0. | 8. |