| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 32.4 | 37.7 | 45.1 | 54.9 | 64.1 | 73.3 | 81.2 | 80.4 | 70.1 | 57.7 | 41.4 | 33.1 | 56.1 |
| Average Min. Temperature (F) | 11.2 | 16.1 | 22.4 | 29.6 | 37.2 | 44.0 | 48.5 | 47.2 | 39.4 | 31.2 | 20.3 | 12.0 | 30.0 |
| Average Total Precipitation (in.) | 0.58 | 0.60 | 1.10 | 1.54 | 2.62 | 2.61 | 1.53 | 1.38 | 1.73 | 1.45 | 0.89 | 0.66 | 16.69 |