August weather forecast
Union, UT

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Weather in August

The last month of the summer, August, is another warm month in Union, Utah, with an average temperature fluctuating between 59.2°F (15.1°C) and 82°F (27.8°C).

Temperature

With the advent of August, Union's high-temperatures adjust to a still warm 82°F (27.8°C), closely aligning with the preceding month. A striking departure from daytime highs to an average low-temperature of 59.2°F (15.1°C) is witnessed during August.

Humidity

In Union, Utah, the average relative humidity in August is 38%.

Rainfall

In Union, in August, it is raining for 8 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, there are 110.7 rainfall days, and 16.06" (408mm) of precipitation is accumulated.

Snowfall

In Union, snow does not fall in June through September.

Daylight

In Union, the average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:54 am and sunset at 8:00 pm MDT.

Sunshine

With an average of 12h of sunshine, August has the most sunshine of the year in Union.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during August leads to these advisories:
Undertake protective steps - Recommendations to avoid sunburn are issued. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

What is the usual temperature for Union in August?

The high-temperature, in August, in Union, is 82°F (27.8°C), while the low-temperature averages to 59.2°F (15.1°C).

What is the average humidity in August?

In Union, the average relative humidity in August is 38%.

How much does it rain in August?

In August, the rain falls for 8 days. Throughout August, 0.71" (18mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Union have in August?

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

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:25 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:00 pm MDT.

What month has the most sunshine?

With an average of 12h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

In August, the average sunshine duration is 12h.

What is the UV index reading in August?

In Union, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate 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
Union, UT

Average temperature in August - Union, UT
  • Average high temperature in August: 82°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 August: 59.2°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).

Average pressure in August
Union, UT

Average pressure in August - Union, 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).

Average wind speed in August
Union, UT

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

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).

Average humidity in August
Union, UT

Average humidity in August - Union, UT
  • Average humidity in August: 38%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (37%).

Average rainfall in August
Union, UT

Average rainfall in August - Union, UT
  • Average rainfall in August: 0.71"

The wettest month (with the highest rainfall) is March (1.97").
The driest month (with the least rainfall) is June (0.59").

Average rainfall days in August
Union, UT

Average rainfall days in August - Union, UT
  • Average rainfall days in August: 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).

Average snowfall in August
Union, UT

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

The month with the highest snowfall is January (10.71").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Union, UT

Average snowfall days in August - Union, UT
  • Average snowfall days in August: 0 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).

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

Average daylight in August / Average sunshine in August - Union, 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: 12h and 0min

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).

Average sunshine days in August
Union, UT

Average sunshine days in August - Union, UT
  • Average sunshine days in August: 18.1 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).

Average UV index in August
Union, UT

Average UV index in August - Union, UT
  • Average UV index in August: 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).

Average cloud cover in August
Union, UT

Average cloud cover in August - Union, UT
  • Average cloud cover in August: 10

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in August
Union, UT

Average visibility in August - Union, UT
  • Average visibility in August: 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).

Union, Utah, USA

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