| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.0 | 43.7 | 53.5 | 61.7 | 72.5 | 83.2 | 91.1 | 88.1 | 79.2 | 65.7 | 50.7 | 38.5 | 63.9 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 25.9 | 31.2 | 39.9 | 46.6 | 55.7 | 65.5 | 74.2 | 71.9 | 61.6 | 49.3 | 37.0 | 26.3 | 48.9 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 13.9 | 18.8 | 26.4 | 31.6 | 38.9 | 47.9 | 57.2 | 55.8 | 44.0 | 32.9 | 23.2 | 14.1 | 33.8 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 1.26 | 1.22 | 1.30 | 1.24 | 1.41 | 0.79 | 0.70 | 1.00 | 1.23 | 1.67 | 1.20 | 1.45 | 14.47 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 1210. | 945. | 777. | 551. | 300. | 85. | 5. | 8. | 146. | 488. | 841. | 1199. | 6555. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 12. | 101. | 288. | 223. | 44. | 1. | 0. | 0. | 670. |