| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.5 | 49.8 | 53.6 | 58.5 | 64.1 | 68.9 | 73.4 | 73.5 | 67.9 | 59.1 | 51.4 | 46.2 | 59.5 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 41.6 | 42.7 | 46.1 | 50.2 | 55.5 | 60.0 | 63.6 | 63.9 | 59.0 | 51.8 | 45.3 | 40.4 | 51.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 35.6 | 35.7 | 38.7 | 41.8 | 46.8 | 51.2 | 53.9 | 54.3 | 50.1 | 44.6 | 39.3 | 34.6 | 43.9 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 4.56 | 2.91 | 3.12 | 2.59 | 2.50 | 1.84 | 1.06 | 1.27 | 1.81 | 3.63 | 5.84 | 4.12 | 35.25 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 727. | 623. | 584. | 445. | 296. | 154. | 68. | 61. | 183. | 408. | 589. | 763. | 4902. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 26. | 27. | 3. | 0. | 0. | 0. | 62. |