| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.1 | 47.2 | 54.9 | 61.3 | 68.8 | 74.4 | 81.8 | 82.4 | 76.2 | 63.8 | 49.6 | 40.4 | 62.0 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 36.3 | 39.0 | 45.1 | 50.2 | 56.9 | 62.5 | 68.3 | 67.9 | 61.2 | 50.9 | 41.9 | 35.1 | 51.3 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 30.5 | 30.9 | 35.2 | 39.0 | 45.1 | 50.5 | 54.7 | 53.5 | 46.1 | 38.0 | 34.2 | 29.7 | 40.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 5.32 | 3.93 | 3.01 | 1.76 | 1.30 | 0.87 | 0.28 | 0.31 | 0.92 | 2.29 | 5.39 | 5.91 | 31.29 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 890. | 727. | 619. | 446. | 267. | 124. | 37. | 36. | 148. | 438. | 693. | 928. | 5352. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 17. | 47. | 138. | 128. | 32. | 0. | 0. | 0. | 364. |