| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 39.6 | 44.4 | 48.5 | 55.1 | 64.9 | 75.6 | 82.9 | 80.6 | 72.2 | 61.4 | 47.0 | 41.2 | 59.6 |
| Average Min. Temperature (F) | 14.9 | 16.9 | 20.6 | 24.9 | 32.8 | 41.8 | 47.9 | 45.7 | 38.0 | 28.3 | 18.7 | 13.9 | 28.8 |
| Average Total Precipitation (in.) | 0.87 | 0.42 | 0.55 | 0.41 | 0.73 | 0.36 | 0.39 | 0.53 | 0.93 | 0.55 | 0.49 | 0.60 | 6.84 |