| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.6 | 44.0 | 46.5 | 52.0 | 60.0 | 67.1 | 75.3 | 75.7 | 69.5 | 58.2 | 45.8 | 41.4 | 56.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 37.8 | 38.5 | 39.7 | 43.7 | 50.2 | 56.4 | 63.8 | 64.5 | 59.8 | 50.6 | 40.8 | 37.0 | 48.6 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 33.1 | 33.0 | 32.9 | 35.4 | 40.4 | 45.7 | 52.2 | 53.3 | 50.0 | 43.0 | 35.8 | 32.6 | 40.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 5.19 | 4.00 | 3.87 | 2.58 | 2.22 | 0.88 | 0.33 | 0.40 | 0.78 | 2.50 | 5.37 | 7.04 | 35.16 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 842. | 742. | 784. | 640. | 470. | 278. | 113. | 104. | 208. | 455. | 726. | 868. | 6230. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 12. | 21. | 74. | 88. | 51. | 8. | 0. | 0. | 254. |