| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 42.0 | 45.8 | 51.1 | 59.4 | 69.5 | 80.6 | 87.5 | 84.9 | 76.3 | 65.0 | 49.3 | 42.5 | 63.0 |
| Average Min. Temperature (F) | 21.7 | 24.8 | 28.4 | 34.4 | 42.8 | 51.8 | 58.4 | 56.9 | 49.4 | 40.0 | 28.9 | 22.6 | 38.5 |
| Average Total Precipitation (in.) | 1.30 | 1.45 | 1.42 | 1.14 | 0.94 | 0.43 | 1.09 | 1.34 | 1.07 | 0.88 | 1.11 | 1.16 | 13.33 |