| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 27.7 | 33.1 | 41.8 | 53.4 | 63.5 | 74.8 | 83.6 | 81.5 | 71.2 | 58.5 | 39.9 | 29.2 | 55.0 |
| Average Min. Temperature (F) | -0.9 | 3.4 | 14.1 | 23.3 | 31.6 | 39.6 | 45.5 | 43.0 | 33.1 | 22.1 | 11.5 | 0.5 | 22.3 |
| Average Total Precipitation (in.) | 0.25 | 0.28 | 0.35 | 0.64 | 1.15 | 0.89 | 0.71 | 0.75 | 0.87 | 0.57 | 0.35 | 0.28 | 7.07 |