| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.4 | 51.4 | 55.6 | 59.9 | 66.2 | 71.5 | 79.7 | 80.8 | 75.9 | 64.1 | 52.2 | 45.6 | 62.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.2 | 42.5 | 45.6 | 49.0 | 54.6 | 59.5 | 65.4 | 65.8 | 61.4 | 52.8 | 44.4 | 39.2 | 51.8 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 33.0 | 33.6 | 35.7 | 38.2 | 43.0 | 47.5 | 51.1 | 50.8 | 47.0 | 41.5 | 36.7 | 32.7 | 40.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.61 | 5.30 | 5.00 | 4.34 | 3.33 | 1.74 | 0.59 | 0.72 | 1.40 | 3.71 | 7.45 | 7.94 | 48.13 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 769. | 630. | 600. | 479. | 329. | 180. | 59. | 49. | 134. | 380. | 616. | 801. | 5026. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 15. | 71. | 74. | 28. | 2. | 0. | 0. | 196. |