August weather forecast
Grantsville, UT

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Weather in August

August, the last month of the summer in Grantsville, is also a moderately hot month, with an average temperature ranging between min 62.2°F (16.8°C) and max 81.7°F (27.6°C).

Temperature

The commencement of August introduces an average high-temperature of a still warm 81.7°F (27.6°C), closely mirroring the preceding month. During the month of August, the nighttime temperature falls to an average of 62.2°F (16.8°C).

Humidity

The average relative humidity in August is 37%.

Rainfall

In Grantsville, Utah, in August, during 10.8 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, in Grantsville, there are 137.7 rainfall days, and 20.98" (533mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Grantsville.

Daylight

In Grantsville, the average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:44 pm. On the last day of August, in Grantsville, sunrise is at 6:56 am and sunset at 8:02 pm MDT.

Sunshine

With an average of 11.8h of sunshine, August has the most sunshine of the year in Grantsville.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the average August temperature in Grantsville?

The high-temperature, in August, in Grantsville, is 81.7°F (27.6°C), while the low-temperature averages to 62.2°F (16.8°C).

What is the average humidity in August in Grantsville?

The average relative humidity in August in Grantsville is 37%.

How much does it rain in Grantsville in August?

In Grantsville, Utah, during August, the rain falls for 10.8 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Grantsville?

In Grantsville, Utah, snow does not fall in June through September.

What is the average length of the day in August in Grantsville?

In August, the average day length in Grantsville, Utah, is 13h and 44min.

When is the sunrise / sunset in August in Grantsville?

On the first day of August, sunrise is at 6:27 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:02 pm MDT.

What month has the most sunshine in Grantsville?

The month with the most sunshine is August, with an average of 11.8h of sunshine.

How many hours of sunshine does Grantsville have in August?

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

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

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

How high is the UV index in August in Grantsville?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
Grantsville, UT

Average temperature in August - Grantsville, UT
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in August
Grantsville, UT

Average pressure in August - Grantsville, UT
  • Average pressure in August: 29.92"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 August
Grantsville, UT

Average wind speed in August - Grantsville, UT
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is January (6mph).

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Average humidity in August
Grantsville, UT

Average humidity in August - Grantsville, UT
  • Average humidity in August: 37%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (36%).

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Average rainfall in August
Grantsville, UT

Average rainfall in August - Grantsville, UT
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is June (1.1").

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Average rainfall days in August
Grantsville, UT

Average rainfall days in August - Grantsville, UT
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in August
Grantsville, UT

Average snowfall in August - Grantsville, UT
  • Average snowfall in August: 0"

The month with the highest snowfall is December (9.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Grantsville, UT

Average snowfall days in August - Grantsville, UT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Grantsville, UT

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

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 August: 11h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in August
Grantsville, UT

Average sunshine days in August - Grantsville, UT
  • Average sunshine days in August: 17.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (10.2 days).

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Average UV index in August
Grantsville, UT

Average UV index in August - Grantsville, 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 December (UV index 1).

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Average cloud cover in August
Grantsville, UT

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

The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in August
Grantsville, UT

Average visibility in August - Grantsville, UT
  • Average visibility in August: 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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Grantsville, Utah, USA

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