| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.3 | 36.7 | 43.2 | 50.7 | 60.7 | 71.0 | 79.1 | 78.1 | 67.8 | 54.9 | 42.9 | 35.3 | 54.8 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 27.5 | 27.8 | 33.9 | 41.4 | 51.1 | 61.1 | 69.0 | 67.9 | 58.0 | 45.7 | 34.5 | 26.7 | 45.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 18.7 | 19.0 | 24.6 | 32.0 | 41.6 | 51.3 | 58.9 | 57.7 | 48.2 | 36.5 | 26.0 | 18.1 | 36.1 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 0.38 | 0.67 | 1.19 | 2.23 | 4.22 | 3.41 | 2.90 | 1.99 | 1.81 | 1.68 | 0.62 | 0.43 | 21.53 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1163. | 1040. | 964. | 711. | 438. | 172. | 43. | 53. | 254. | 600. | 916. | 1187. | 7541. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 9. | 56. | 167. | 142. | 44. | 2. | 0. | 0. | 421. |