May weather forecast
Vernal, UT

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Great scenery of the rocky and sandy Arch in Vernal, Utah
Great scenery of the rocky and sandy Arch in Vernal, Utah

Weather in May

May witnesses the last of the spring weather as it prepares to transition into summer. Vernal experiences a considerable jump in temperature, with highs averaging 65.8°F (18.8°C) and lows at 45.3°F (7.4°C). It registers less rainfall, making the weather pleasant for outdoor explorations. The extended daylight hours add beauty to May's charm. This month serves as an excellent stage for outdoor enthusiasts, as Vernal basks in the pleasant calm before the summer heat takes full control.

Temperature

Vernal in May shows a temperature shift, moving from an average high of a fresh 55.2°F (12.9°C) in April to a refreshing 65.8°F (18.8°C). An average low-temperature of 45.3°F (7.4°C) is observed during May nights in Vernal.

Humidity

In Vernal, the average relative humidity in May is 39%.

Rainfall

In Vernal, Utah, in May, during 8.6 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Vernal, Utah, during the entire year, the rain falls for 83.2 days and collects up to 5.75" (146mm) of precipitation.

Snowfall

Months with snowfall in Vernal are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Vernal aggregates 0.04" (1mm) of snow. In Vernal, during the entire year, snow falls for 43.6 days and aggregates up to 16.81" (427mm) of snow.

Daylight

In May, the average length of the day is 14h and 27min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:41 pm MDT.

Sunshine

In May, the average sunshine is 11.6h.

UV index

In Vernal, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a regular UV index of 5 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What is the temperature in May in Vernal?

An average high-temperature, in May, in Vernal, is 65.8°F (18.8°C) and the average low-temperature is 45.3°F (7.4°C).

What is the average humidity in May in Vernal?

In Vernal, Utah, the average relative humidity in May is 39%.

How much does it rain in Vernal in May?

In Vernal, Utah, during May, the rain falls for 8.6 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the last month it snows in Vernal?

May is the last month it regularly snows in Vernal. During 0.1 snowfall days, in May, Vernal aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Vernal?

In Vernal, Utah, the average day length in May is 14h and 27min.

When is the sunrise / sunset in May in Vernal?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:14 pm. On the last day of the month, in Vernal, sunrise is at 5:49 am and sunset at 8:41 pm MDT.

How many hours of sunshine does Vernal have in May?

The average sunshine duration in May is 11.6h.

How high is the UV index in May in Vernal?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
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
Vernal, UT

Average temperature in May - Vernal, UT
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in May: 45.3°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure in May
Vernal, UT

Average pressure in May - Vernal, UT
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in May
Vernal, UT

Average wind speed in May - Vernal, UT
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (3.4mph).

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Average humidity in May
Vernal, UT

Average humidity in May - Vernal, UT
  • Average humidity in May: 39%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (30%).

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Average rainfall in May
Vernal, UT

Average rainfall in May - Vernal, UT
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is April (0.71").
The driest month (with the least rainfall) is November (0.31").

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Average rainfall days in May
Vernal, UT

Average rainfall days in May - Vernal, UT
  • Average rainfall days in May: 8.6 days

The month with the highest number of rainy days is April (10.8 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in May
Vernal, UT

Average snowfall in May - Vernal, UT
  • Average snowfall in May: 0.04"

The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Vernal, UT

Average snowfall days in May - Vernal, UT
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (10.2 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
Vernal, UT

Average daylight in May / Average sunshine in May - Vernal, UT
  • Average daylight in May: 14h and 2min

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 4min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).

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Average sunshine days in May
Vernal, UT

Average sunshine days in May - Vernal, UT
  • Average sunshine days in May: 20.1 days

The month with the most sunshine days is October (22.4 days).
The month with the least sunshine days is April (15.3 days).

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Average UV index in May
Vernal, UT

Average UV index in May - Vernal, UT
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Vernal, UT

Average cloud cover in May - Vernal, UT
  • Average cloud cover in May: 18

The month with the most cloud cover is February (Cloud cover 30).
The months with the least cloud cover are August and September (Cloud cover 11).

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Average visibility in May
Vernal, UT

Average visibility in May - Vernal, UT
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Vernal, Utah, USA

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