| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.4 | 59.2 | 62.7 | 67.8 | 76.4 | 85.3 | 93.3 | 92.4 | 86.9 | 76.7 | 63.2 | 55.6 | 73.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 45.9 | 48.6 | 51.7 | 55.7 | 62.8 | 70.3 | 77.3 | 76.3 | 71.7 | 62.8 | 51.7 | 45.7 | 60.1 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.4 | 37.9 | 40.7 | 43.7 | 49.3 | 55.4 | 61.3 | 60.1 | 56.5 | 48.9 | 40.2 | 35.9 | 47.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 6.93 | 6.72 | 6.06 | 3.16 | 1.74 | 0.45 | 0.02 | 0.09 | 0.72 | 2.12 | 5.02 | 6.98 | 40.01 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 592. | 461. | 414. | 289. | 139. | 33. | 4. | 2. | 25. | 139. | 401. | 597. | 3094. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 12. | 72. | 193. | 385. | 350. | 226. | 71. | 2. | 0. | 1312. |