| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.5 | 46.8 | 57.2 | 64.4 | 72.2 | 78.1 | 85.6 | 84.8 | 76.4 | 63.2 | 48.0 | 37.1 | 62.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 33.2 | 37.9 | 45.2 | 51.1 | 58.5 | 64.4 | 70.5 | 70.1 | 62.4 | 51.4 | 40.0 | 31.4 | 51.4 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 26.9 | 29.0 | 33.3 | 37.9 | 44.8 | 50.7 | 55.5 | 55.4 | 48.3 | 39.7 | 32.1 | 25.6 | 40.0 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.20 | 0.87 | 0.87 | 0.74 | 0.77 | 0.68 | 0.30 | 0.22 | 0.40 | 0.73 | 1.17 | 1.41 | 9.36 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 986. | 759. | 612. | 416. | 224. | 79. | 15. | 15. | 120. | 421. | 748. | 1043. | 5438. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 22. | 61. | 187. | 173. | 40. | 1. | 0. | 0. | 485. |