| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.5 | 47.7 | 57.9 | 65.9 | 74.4 | 81.6 | 90.1 | 89.2 | 80.0 | 65.9 | 50.3 | 39.0 | 65.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 34.9 | 39.1 | 47.2 | 53.4 | 61.1 | 67.8 | 74.2 | 73.2 | 64.8 | 53.4 | 41.7 | 32.9 | 53.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 28.2 | 30.5 | 36.5 | 41.0 | 47.9 | 54.0 | 58.4 | 57.3 | 49.6 | 40.9 | 33.1 | 26.7 | 42.1 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.13 | 0.83 | 0.78 | 0.70 | 0.70 | 0.73 | 0.20 | 0.27 | 0.47 | 0.75 | 1.02 | 1.36 | 8.94 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 935. | 725. | 552. | 349. | 166. | 46. | 7. | 7. | 87. | 364. | 699. | 996. | 4934. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 47. | 130. | 294. | 262. | 81. | 4. | 0. | 0. | 822. |