| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 46° | 48° | 64° | 74° | 78° | 85° | 87° | 88° | 81° | 72° | 58° | 50° |
| Avg. Low | 4° | 7° | 15° | 25° | 32° | 40° | 44° | 42° | 35° | 27° | 18° | 7° |
| Mean | 28° | 31° | 38° | 47° | 56° | 62° | 64° | 64° | 57° | 48° | 38° | 31° |
| Avg. Precip. | 1.1 in | 1.3 in | 1.3 in | 2.1 in | 3.6 in | 4.1 in | 3.6 in | 3.6 in | 2.3 in | 1.7 in | 1.8 in | 1.4 in |
Fahrenheit temperature scale is used.