| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.0 | 52.7 | 57.4 | 62.6 | 68.6 | 74.4 | 82.6 | 83.9 | 78.7 | 65.8 | 52.9 | 45.9 | 64.5 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 40.8 | 43.7 | 47.6 | 51.5 | 56.6 | 61.8 | 67.7 | 68.3 | 64.3 | 54.6 | 45.3 | 39.8 | 53.5 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 33.6 | 34.7 | 37.8 | 40.3 | 44.5 | 49.2 | 52.8 | 52.6 | 49.8 | 43.3 | 37.7 | 33.7 | 42.5 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.86 | 5.28 | 5.19 | 3.45 | 2.84 | 1.70 | 0.57 | 0.65 | 1.31 | 3.15 | 7.91 | 8.13 | 47.04 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 750. | 596. | 539. | 407. | 272. | 128. | 31. | 21. | 83. | 327. | 591. | 781. | 4526. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 32. | 114. | 121. | 60. | 3. | 0. | 0. | 341. |