| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.2 | 30.7 | 36.8 | 43.5 | 54.8 | 65.2 | 73.5 | 71.0 | 61.9 | 48.7 | 34.9 | 26.0 | 47.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 13.8 | 15.8 | 22.6 | 30.7 | 40.7 | 49.7 | 56.5 | 55.0 | 46.7 | 35.8 | 23.8 | 13.6 | 33.8 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 0.5 | 0.9 | 8.4 | 17.9 | 26.6 | 34.3 | 39.5 | 39.0 | 31.6 | 22.9 | 12.7 | 1.2 | 19.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 2.69 | 2.45 | 2.58 | 2.40 | 1.86 | 1.11 | 1.19 | 1.57 | 1.80 | 2.08 | 2.36 | 2.84 | 24.93 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1586. | 1377. | 1314. | 1029. | 753. | 458. | 265. | 311. | 548. | 905. | 1236. | 1593. | 11375. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 1. | 1. | 0. | 0. | 0. | 0. | 2. |