| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 28.8 | 34.1 | 40.8 | 51.5 | 61.8 | 72.8 | 79.0 | 77.1 | 69.8 | 58.3 | 41.0 | 30.2 | 53.9 |
| Average Min. Temperature (F) | 3.1 | 7.0 | 13.9 | 21.7 | 28.1 | 34.6 | 40.3 | 38.0 | 31.6 | 23.8 | 13.9 | 4.2 | 21.7 |
| Average Total Precipitation (in.) | 1.20 | 1.29 | 1.29 | 0.93 | 1.07 | 0.68 | 1.13 | 0.75 | 0.92 | 1.00 | 0.85 | 1.50 | 12.61 |