Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Union in May experiences an increase in the average high-temperature, moving from April's cool 51.8°F (11°C) to a refreshing 63°F (17.2°C). Union witnesses an average low-temperature of 41.5°F (5.3°C) throughout the month of May.Humidity
In Union, the average relative humidity in May is 51%.Rainfall
In May, the rain falls for 11.8 days. Throughout May, 1.14" (29mm) of precipitation is accumulated. In Union, during the entire year, the rain falls for 110.7 days and collects up to 16.06" (408mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Union aggregates 0.04" (1mm) of snow. Throughout the year, there are 51.1 snowfall days, and 41.54" (1055mm) of snow is accumulated.Daylight
In Union, the average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of May, sunrise is at 5:58 am and sunset at 8:51 pm MDT.
Sunshine
The average sunshine in May is 11.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. To guard against the harmful effects of the Sun, minimize exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Union have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Union have in May?
How high is the UV index in May?
Average temperature in May
Union, UT
- Average high temperature in May: 63°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in May: 41.5°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in May
Union, UT
- Average pressure in May: 29.89"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Union, UT
- Average wind speed in May: 5.5mph
The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in May
Union, UT
- Average humidity in May: 51%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (37%).
Average rainfall in May
Union, UT
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is March (1.97").
The driest month (with the least rainfall) is June (0.59").
Average rainfall days in May
Union, UT
- Average rainfall days in May: 11.8 days
The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is June (6.3 days).
Average snowfall in May
Union, UT
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (10.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Union, UT
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Union, UT
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 11h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Union, UT
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is June (21.4 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in May
Union, UT
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Union, UT
- Average cloud cover in May: 22
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in May
Union, UT
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Union, Utah, USA
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