August weather forecast
Dewey, UT

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Weather in August

August, the last month of the summer in Dewey, is also a moderately hot month, with an average temperature fluctuating between 59.5°F (15.3°C) and 80.1°F (26.7°C).

Temperature

As July turns into August, the average high-temperatures rest at a still moderately hot 80.1°F (26.7°C), showing a minor variation from the prior month. During the August nights, an average temperature of 59.5°F (15.3°C) is observed.

Humidity

In August, the average relative humidity in Dewey is 40%.

Rainfall

The months with the most rainfall in Dewey are July and August, with an average 3.15" (80mm) of precipitation.

Snowfall

In Dewey, Utah, snow does not fall in May through September.

Daylight

In August, the average length of the day in Dewey is 13h and 38min.
On the first day of August in Dewey, sunrise is at 6:19 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:48 pm MDT.

Sunshine

In August, the average sunshine in Dewey is 11.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Dewey?

In August, in Dewey, the average high-temperature is 80.1°F (26.7°C), and the average low-temperature is 59.5°F (15.3°C).

What is the average humidity in August in Dewey?

In August, the average relative humidity is 40%.

What is the rainiest month in Dewey?

The wettest months in Dewey are July and August, with an average 3.15" (80mm) of rainfall.

How much does it rain in Dewey in August?

In Dewey, during August, the rain falls for 16.5 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow in Dewey?

In Dewey, Utah, snow does not fall in May through September.

How many hours of daylight does Dewey have in August?

The average day length in August in Dewey, Utah, is 13h and 38min.

When are sunrise and sunset in August in Dewey?

On the first day of August, sunrise is at 6:19 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:48 pm MDT.

How many hours of sunshine does Dewey have in August?

In August, the average sunshine duration in Dewey is 11.8h.

What is the month with the highest UV index in Dewey?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in Dewey?

In August, the average daily maximum UV index in Dewey, Utah, is 6. A UV Index of 6 to 7 symbolizes a high health risk 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 August
Dewey, UT

Average temperature in August - Dewey, UT
  • Average high temperature in August: 80.1°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 August: 59.5°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 August
Dewey, UT

Average pressure in August - Dewey, UT
  • Average pressure in August: 29.97"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 August
Dewey, UT

Average wind speed in August - Dewey, UT
  • Average wind speed in August: 5.8mph

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 August
Dewey, UT

Average humidity in August - Dewey, UT
  • Average humidity in August: 40%

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

Average rainfall in August
Dewey, UT

Average rainfall in August - Dewey, UT
  • Average rainfall in August: 3.15"

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 August
Dewey, UT

Average rainfall days in August - Dewey, UT
  • Average rainfall days in August: 16.5 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 August
Dewey, UT

Average snowfall in August - Dewey, UT
  • Average snowfall in August: 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 August
Dewey, UT

Average snowfall days in August - Dewey, UT
  • Average snowfall days in August: 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 August /
Average sunshine in August
Dewey, UT

Average daylight in August / Average sunshine in August - Dewey, UT
  • Average daylight in August: 13h and 4min

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 August: 11h and 5min

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 August
Dewey, UT

Average sunshine days in August - Dewey, UT
  • Average sunshine days in August: 9.8 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 August
Dewey, UT

Average UV index in August - Dewey, UT
  • Average UV index in August: 6

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 August
Dewey, UT

Average cloud cover in August - Dewey, UT
  • Average cloud cover in August: 13

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 August
Dewey, UT

Average visibility in August - Dewey, UT
  • Average visibility in August: 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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