May weather forecast
Union, UT

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Weather in May

May, the last month of the spring in Union, is an enjoyable month, with an average temperature varying between 41.5°F (5.3°C) and 63°F (17.2°C).

Temperature

In Union, the onset of May comes with an increased average high-temperature, moving from April's fresh 51.8°F (11°C) to an enjoyable 63°F (17.2°C). The temperature in Union, Utah, lowers to an average of 41.5°F (5.3°C) during May nights.

Humidity

In Union, Utah, the average relative humidity in May is 51%.

Rainfall

In Union, in May, during 11.8 rainfall days, 1.14" (29mm) of precipitation is typically 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. In Union, during the entire year, snow falls for 51.1 days and aggregates up to 41.54" (1055mm) of snow.

Daylight

In May, the average length of the day in Union 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

In Union, Utah, the average sunshine in May is 11.2h.

UV index

In Union, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, an average UV index of 5 transforms into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the average May temperature in Union?

The average high-temperature, in May, in Union, is 63°F (17.2°C), while the average low-temperature is 41.5°F (5.3°C).

What is the average humidity in May in Union?

In May, the average relative humidity is 51%.

How many days does it rain in May in Union?

In Union, Utah, during May, the rain falls for 11.8 days and regularly aggregates up to 1.14" (29mm) of precipitation.

What is the last month it snows in Union?

May is the last month it regularly snows in Union, Utah. During 0.3 snowfall days, in May, Union aggregates 0.04" (1mm) of snow.

How many hours of daylight does Union have in May?

In Union, Utah, the average day length in May is 14h and 28min.

When are sunrise and sunset in May in Union?

On the first day of May in Union, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:51 pm MDT.

How many hours of sunshine does Union have in May?

In May, the average sunshine duration is 11.2h.

What is the UV index reading in May in Union?

The average daily maximum UV index in May in Union, Utah, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Union, UT

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).

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Average pressure in May
Union, UT

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).

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Average wind speed in May
Union, UT

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).

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Average humidity in May
Union, UT

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%).

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Average rainfall in May
Union, UT

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").

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Average rainfall days in May
Union, UT

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).

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Average snowfall in May
Union, UT

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").

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Average snowfall days in May
Union, UT

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).

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Average daylight in May /
Average sunshine in May
Union, UT

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).

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Average sunshine days in May
Union, UT

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).

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Average UV index in May
Union, UT

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).

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Average cloud cover in May
Union, UT

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).

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Average visibility in May
Union, UT

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).

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Union, Utah, USA

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