| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 39.1 | 43.2 | 47.9 | 54.8 | 63.7 | 75.2 | 83.7 | 83.3 | 72.8 | 60.4 | 45.9 | 40.4 | 59.4 |
| Average Min. Temperature (F) | 12.3 | 17.1 | 21.8 | 25.9 | 32.1 | 38.1 | 42.4 | 40.5 | 33.5 | 26.6 | 19.0 | 12.8 | 26.9 |
| Average Total Precipitation (in.) | 0.88 | 0.83 | 0.92 | 1.18 | 1.41 | 1.23 | 0.72 | 0.55 | 1.10 | 1.42 | 1.12 | 0.98 | 12.32 |