| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.4 | 33.2 | 41.0 | 50.8 | 61.0 | 70.9 | 76.9 | 75.2 | 67.7 | 55.7 | 39.9 | 30.5 | 52.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 18.4 | 20.4 | 28.6 | 37.6 | 46.8 | 55.4 | 61.7 | 60.3 | 52.3 | 41.3 | 28.0 | 19.0 | 39.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 6.5 | 7.6 | 16.2 | 24.4 | 32.6 | 39.8 | 46.4 | 45.4 | 36.9 | 27.0 | 16.0 | 7.4 | 25.6 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.21 | 1.20 | 1.30 | 1.56 | 1.44 | 1.30 | 1.59 | 1.71 | 1.55 | 1.28 | 1.34 | 1.22 | 16.70 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1443. | 1249. | 1128. | 822. | 564. | 292. | 119. | 153. | 381. | 733. | 1111. | 1427. | 9423. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 2. | 15. | 7. | 0. | 0. | 0. | 0. | 24. |