| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.3 | 51.8 | 60.3 | 70.6 | 80.1 | 90.1 | 95.7 | 94.2 | 85.5 | 72.6 | 59.2 | 46.7 | 71.2 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 34.0 | 38.9 | 47.1 | 57.1 | 68.0 | 78.0 | 83.5 | 82.0 | 73.0 | 59.7 | 46.6 | 35.3 | 58.7 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 21.7 | 26.0 | 33.8 | 43.5 | 55.9 | 66.0 | 71.3 | 69.7 | 60.5 | 46.9 | 34.0 | 23.9 | 46.2 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.21 | 1.53 | 2.80 | 2.78 | 4.29 | 4.75 | 3.08 | 3.33 | 2.81 | 2.92 | 1.68 | 1.40 | 32.58 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 961. | 731. | 559. | 267. | 58. | 3. | 0. | 0. | 29. | 208. | 554. | 920. | 4291. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 28. | 151. | 395. | 573. | 526. | 269. | 46. | 2. | 0. | 1992. |