| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.2 | 54.6 | 60.9 | 67.2 | 76.6 | 85.5 | 94.5 | 93.9 | 87.5 | 74.6 | 55.9 | 46.4 | 70.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 39.8 | 42.9 | 47.0 | 51.5 | 59.2 | 66.3 | 73.3 | 72.0 | 65.5 | 56.0 | 44.7 | 38.5 | 54.8 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 31.4 | 31.2 | 33.1 | 35.9 | 41.7 | 47.1 | 52.1 | 50.1 | 43.5 | 37.5 | 33.4 | 30.7 | 39.0 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.47 | 5.84 | 4.85 | 2.51 | 1.81 | 0.80 | 0.26 | 0.17 | 0.60 | 2.27 | 5.41 | 7.87 | 38.86 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 781. | 619. | 558. | 405. | 214. | 68. | 9. | 7. | 69. | 285. | 610. | 820. | 4445. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 32. | 107. | 266. | 224. | 84. | 7. | 0. | 0. | 722. |