| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 32.0 | 40.5 | 55.4 | 66.5 | 77.1 | 88.0 | 94.7 | 92.2 | 81.8 | 66.9 | 48.2 | 34.8 | 65.0 |
| Average Min. Temperature (F) | 6.2 | 13.3 | 25.1 | 33.3 | 41.8 | 49.2 | 55.5 | 53.8 | 44.5 | 33.1 | 21.7 | 10.9 | 32.5 |
| Average Total Precipitation (in.) | 0.59 | 0.53 | 0.59 | 0.83 | 0.83 | 0.56 | 0.67 | 0.74 | 1.13 | 1.13 | 0.69 | 0.60 | 8.87 |