Union Weather in May
May in Union averages 21°C (70°F) during the day and 8°C (46°F) at night. Quite a bit of rainfall is typical this month, with around 105 mm (4.1 in) on average. An umbrella is a good idea.
Rainfall in Union in May
Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 105 mm (4.1 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Union in May
Expect highs of 21°C (70°F) in Union in May, with nights dropping to around 8°C (46°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.If you prefer dry days with pleasant temperatures, July and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Union's climate page.
Union Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
21°C (70°F)
Chance of Rain
44%
Precipitation
105 mm (4.1 in)
Rainy days
13 days
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Union in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Union in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Union's climate page.
See the full Union climate overview or explore weather in the United States of America.
