| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.5 | 49.3 | 58.5 | 65.0 | 73.1 | 80.0 | 89.9 | 89.3 | 80.3 | 66.6 | 52.2 | 42.4 | 66.0 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 36.2 | 39.1 | 46.2 | 51.7 | 59.2 | 65.7 | 72.9 | 71.8 | 63.2 | 51.8 | 42.3 | 34.6 | 53.0 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 27.8 | 28.9 | 33.8 | 38.5 | 45.4 | 51.4 | 55.9 | 54.4 | 46.1 | 37.0 | 32.4 | 26.8 | 39.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.57 | 1.24 | 1.40 | 1.54 | 1.72 | 1.22 | 0.41 | 0.53 | 0.69 | 1.11 | 1.87 | 1.50 | 14.80 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 894. | 725. | 584. | 398. | 206. | 67. | 8. | 12. | 110. | 410. | 681. | 942. | 5037. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 28. | 88. | 252. | 224. | 56. | 1. | 0. | 0. | 649. |