| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 28.3 | 34.0 | 41.3 | 53.0 | 62.6 | 72.3 | 78.0 | 77.1 | 70.9 | 59.9 | 39.3 | 29.2 | 54.0 |
| Average Min. Temperature (F) | 2.0 | 6.8 | 14.1 | 20.5 | 27.3 | 34.3 | 39.7 | 38.8 | 31.6 | 23.0 | 12.3 | 2.8 | 21.2 |
| Average Total Precipitation (in.) | 0.44 | 0.13 | 0.53 | 0.51 | 0.42 | 0.04 | 0.50 | 0.59 | 0.49 | 0.45 | 0.37 | 1.25 | 5.72 |