Climate almanac
Union City
Tennessee, United States · 36.42°, -89.06°
What is the climate like in Union City?
The best time to visit Union City is typically August – October, with trip comfort peaking in September (7.2/10). Union City is warmest in July, when daily highs average 90°F (32°C), and coolest in January, when lows fall to about 32°F (0°C). The wettest month is typically April and the driest is September; the year sees roughly 54 in (1381 mm) of precipitation.
- Best time to visitAugust – October — comfort peaks in September (7.2/10)
- Warmest monthJuly — average high 90°F (32°C)
- Coolest monthJanuary — average low 32°F (0°C)
- Wettest monthApril (6.2 in (157 mm))
- Driest monthSeptember (3.2 in (80 mm))
- Annual precipitation54 in (1381 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromUnion City, 4 km away (1895-2026)