| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 35.4 | 38.9 | 44.7 | 52.5 | 62.4 | 73.1 | 79.9 | 79.0 | 69.7 | 57.1 | 42.4 | 36.4 | 56.1 |
| Average Min. Temperature (F) | 16.6 | 19.8 | 24.9 | 32.3 | 42.0 | 51.5 | 57.9 | 57.4 | 48.4 | 37.0 | 25.0 | 18.2 | 36.0 |
| Average Total Precipitation (in.) | 0.40 | 0.64 | 1.15 | 2.18 | 3.97 | 3.79 | 3.02 | 2.22 | 1.53 | 1.43 | 0.71 | 0.46 | 21.49 |