| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 46° | 48° | 64° | 72° | 78° | 85° | 88° | 87° | 81° | 70° | 57° | 50° |
| Avg. Low | 6° | 8° | 18° | 26° | 34° | 41° | 45° | 44° | 38° | 28° | 18° | 10° |
| Mean | 28° | 31° | 38° | 46° | 55° | 60° | 64° | 62° | 56° | 47° | 37° | 32° |
| Avg. Precip. | 0.9 in | 0.9 in | 1.1 in | 1.5 in | 3.0 in | 2.9 in | 2.6 in | 2.7 in | 1.6 in | 1.3 in | 1.3 in | 1.0 in |
Fahrenheit temperature scale is used.