Weather information for the Union City area is provided below. Average temperatures, climate details and current forecasts are included.
Climate
Monthly average temperatures and precipitation for Union City are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 42° | 47° | 58° | 68° | 77° | 85° | 88° | 87° | 81° | 71° | 58° | 47° |
| Avg. Low | 24° | 27° | 37° | 47° | 56° | 64° | 67° | 64° | 57° | 45° | 37° | 28° |
| Daily Avg | 34° | 37° | 48° | 58° | 67° | 75° | 78° | 76° | 70° | 58° | 48° | 38° |
| Avg. Precip. | 3.7 in | 4.1 in | 5.3 in | 4.8 in | 4.9 in | 4.4 in | 4.3 in | 3.4 in | 3.6 in | 3.7 in | 4.9 in | 5.1 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
