May weather forecast
Dewey, UT

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Weather in May

The last month of the spring, May, is a refreshing month in Dewey, Utah, with an average temperature fluctuating between 65.8°F (18.8°C) and 44.2°F (6.8°C).

Temperature

A rise in the average high-temperature is observed during May, moving from a mild 55.4°F (13°C) in April to an enjoyable 65.8°F (18.8°C). The nighttime temperature in Dewey during May exhibits a clear drop from daytime highs, settling at a frosty 44.2°F (6.8°C).

Humidity

The average relative humidity in May in Dewey is 37%.

Rainfall

In Dewey, in May, it is raining for 12.6 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, in Dewey, there are 117.7 rainfall days, and 15.83" (402mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day in Dewey is 14h and 19min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:10 pm. On the last day of May, sunrise is at 5:53 am and sunset at 8:36 pm MDT.

Sunshine

The average sunshine in May in Dewey is 11.5h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Dewey?

The high-temperature, in May, in Dewey, records 65.8°F (18.8°C), while the low-temperature is 44.2°F (6.8°C).

What is the average humidity in May in Dewey?

The average relative humidity in May is 37%.

How much does it rain in Dewey in May?

In May, in Dewey, the rain falls for 12.6 days. Throughout May, 1.34" (34mm) of precipitation is accumulated.

When it does not snow in Dewey?

May through September are months without snowfall in Dewey, Utah.

Does it snow in Dewey in May?

In May, in Dewey, Utah, it doesn't snow. April is the latest month when it typically snows.

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

In May, the average day length in Dewey is 14h and 19min.

When is the sunrise / sunset in May in Dewey?

In May, on the first day of the month, sunrise is at 6:18 am and sunset at 8:10 pm. On the last day of the month, in Dewey, sunrise is at 5:53 am and sunset at 8:36 pm MDT.

How many hours of sunshine does Dewey have in May?

The average sunshine duration in May is 11.5h.

How high is the UV index in May in Dewey?

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

Average temperature in May
Dewey, UT

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

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

Average pressure in May
Dewey, UT

Average pressure in May - Dewey, UT
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in May
Dewey, UT

Average wind speed in May - Dewey, UT
  • Average wind speed in May: 7.7mph

The windiest months (with the highest average wind speed) are April and June (8mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).

Average humidity in May
Dewey, UT

Average humidity in May - Dewey, UT
  • Average humidity in May: 37%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is June (29%).

Average rainfall in May
Dewey, UT

Average rainfall in May - Dewey, UT
  • Average rainfall in May: 1.34"

The wettest months (with the highest rainfall) are July and August (3.15").
The driest months (with the least rainfall) are January and February (0.51").

Average rainfall days in May
Dewey, UT

Average rainfall days in May - Dewey, UT
  • Average rainfall days in May: 12.6 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (4 days).

Average snowfall in May
Dewey, UT

Average snowfall in May - Dewey, UT
  • Average snowfall in May: 0"

The month with the highest snowfall is December (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Dewey, UT

Average snowfall days in May - Dewey, UT
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 11h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

Average sunshine days in May
Dewey, UT

Average sunshine days in May - Dewey, UT
  • Average sunshine days in May: 14.7 days

The months with the most sunshine days are January and November (23 days).
The month with the least sunshine days is July (8 days).

Average UV index in May
Dewey, UT

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Dewey, UT

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

The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 12).

Average visibility in May
Dewey, UT

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

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

Dewey, Utah, USA

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