| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.4 | 47.6 | 53.3 | 58.4 | 65.3 | 71.2 | 79.6 | 80.5 | 74.4 | 61.7 | 49.8 | 43.5 | 60.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 39.3 | 40.7 | 44.6 | 48.6 | 54.4 | 59.9 | 66.1 | 66.8 | 62.0 | 52.8 | 43.9 | 38.7 | 51.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 34.2 | 33.9 | 35.9 | 38.7 | 43.6 | 48.6 | 52.6 | 53.2 | 49.6 | 43.9 | 37.9 | 33.9 | 42.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 12.67 | 10.07 | 9.74 | 7.81 | 5.93 | 4.06 | 0.96 | 1.06 | 2.78 | 6.94 | 14.26 | 14.43 | 90.71 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 797. | 679. | 632. | 494. | 336. | 180. | 61. | 48. | 132. | 380. | 634. | 815. | 5190. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 27. | 95. | 105. | 42. | 2. | 0. | 0. | 281. |