| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 38.0 | 45.8 | 54.0 | 62.8 | 73.7 | 83.2 | 91.2 | 89.1 | 79.6 | 66.8 | 50.3 | 38.8 | 64.6 |
| Average Min. Temperature (F) | 14.8 | 21.3 | 25.9 | 32.2 | 39.6 | 47.0 | 53.3 | 51.6 | 41.8 | 32.7 | 25.1 | 17.1 | 33.6 |
| Average Total Precipitation (in.) | 1.03 | 1.02 | 1.18 | 1.45 | 0.98 | 0.92 | 0.60 | 0.82 | 1.00 | 1.26 | 1.30 | 1.32 | 12.87 |