| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.4 | 55.0 | 56.0 | 56.9 | 60.7 | 63.4 | 65.0 | 65.1 | 65.2 | 62.6 | 56.6 | 52.7 | 59.4 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 44.6 | 45.7 | 47.0 | 48.4 | 52.3 | 55.5 | 57.7 | 58.0 | 56.3 | 52.8 | 47.7 | 44.1 | 50.9 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.8 | 36.5 | 38.1 | 39.9 | 44.0 | 47.6 | 50.4 | 50.8 | 47.4 | 42.9 | 38.8 | 35.5 | 42.3 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 12.18 | 10.65 | 10.31 | 6.27 | 3.94 | 2.00 | 0.37 | 0.53 | 1.21 | 5.00 | 11.42 | 15.72 | 79.60 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 632. | 539. | 556. | 498. | 392. | 285. | 227. | 219. | 262. | 380. | 519. | 648. | 5158. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 1. | 0. | 1. | 1. | 0. | 0. | 3. |