| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 32.4 | 35.6 | 45.5 | 54.0 | 64.4 | 73.6 | 82.5 | 79.3 | 70.8 | 57.3 | 43.8 | 33.2 | 56.2 |
| Average Min. Temperature (F) | 10.6 | 13.9 | 21.9 | 28.9 | 36.6 | 43.4 | 52.0 | 49.2 | 41.3 | 32.0 | 21.4 | 13.0 | 30.5 |
| Average Total Precipitation (in.) | 1.57 | 1.42 | 1.50 | 1.58 | 1.72 | 1.13 | 0.98 | 1.25 | 1.46 | 1.65 | 1.41 | 1.74 | 17.40 |