| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.8 | 48.0 | 54.7 | 60.8 | 68.5 | 76.4 | 85.9 | 85.4 | 77.9 | 64.9 | 49.8 | 40.9 | 63.1 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 34.1 | 37.4 | 42.3 | 46.6 | 53.9 | 60.3 | 66.9 | 66.0 | 59.0 | 49.3 | 39.6 | 32.3 | 49.0 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 25.4 | 26.8 | 29.9 | 32.5 | 39.2 | 44.2 | 47.9 | 46.6 | 40.1 | 33.6 | 29.4 | 23.8 | 35.0 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.12 | 1.00 | 0.87 | 0.87 | 1.17 | 0.92 | 0.56 | 0.34 | 0.38 | 0.83 | 1.18 | 1.44 | 10.68 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 958. | 773. | 704. | 551. | 354. | 169. | 49. | 57. | 202. | 489. | 762. | 1012. | 6080. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 28. | 108. | 88. | 22. | 1. | 0. | 0. | 256. |