| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.7 | 46.0 | 53.3 | 59.7 | 68.3 | 77.5 | 85.7 | 84.6 | 75.8 | 62.8 | 48.0 | 39.2 | 61.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 33.9 | 37.1 | 43.5 | 48.3 | 55.5 | 62.8 | 70.9 | 68.8 | 61.1 | 50.7 | 39.1 | 31.7 | 50.4 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 27.1 | 28.3 | 33.7 | 37.0 | 42.7 | 48.1 | 56.0 | 53.1 | 46.5 | 38.6 | 30.3 | 24.3 | 38.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.72 | 1.15 | 0.99 | 1.46 | 1.13 | 0.59 | 0.18 | 0.30 | 0.42 | 0.71 | 1.35 | 1.50 | 11.50 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 964. | 780. | 667. | 500. | 322. | 126. | 22. | 40. | 154. | 445. | 775. | 1030. | 5825. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 28. | 60. | 203. | 159. | 39. | 2. | 0. | 0. | 491. |