| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 39.3 | 44.3 | 50.1 | 57.8 | 66.4 | 75.1 | 83.1 | 83.2 | 74.7 | 63.5 | 46.0 | 39.0 | 60.4 |
| Average Min. Temperature (F) | 20.2 | 23.2 | 25.2 | 27.6 | 33.3 | 39.9 | 43.6 | 43.0 | 36.2 | 30.1 | 25.0 | 19.7 | 30.7 |
| Average Total Precipitation (in.) | 0.90 | 0.77 | 0.77 | 0.70 | 0.86 | 0.78 | 0.55 | 0.51 | 0.64 | 0.68 | 1.20 | 1.17 | 9.54 |