August weather forecast
Saint George, UT

Weather in August

The last month of the summer, August, is another tropical month in Saint George, Utah, with an average temperature varying between 92.3°F (33.5°C) and 71.2°F (21.8°C).

Temperature

In Saint George, the average high-temperature in August is relatively the same as in July - a still tropical 92.3°F (33.5°C). The average low-temperature, in Saint George, is 71.2°F (21.8°C).

Humidity

The average relative humidity in August is 28%.

Rainfall

In August, the rain falls for 5.4 days. Throughout August, 0.55" (14mm) of precipitation is accumulated. In Saint George, during the entire year, the rain falls for 66.6 days and collects up to 6.97" (177mm) of precipitation.

Snowfall

March through October are months without snowfall.

Daylight

In Saint George, Utah, the average length of the day in August is 13h and 32min.
On the first day of August, sunrise is at 6:39 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:04 pm MDT.

Sunshine

In August, the average sunshine in Saint George, Utah, is 11.5h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index in Saint George, Utah. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in August in Saint George?

The average relative humidity in August is 28%.

How much does it rain in Saint George in August?

In Saint George, Utah, in August, during 5.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When it does not snow in Saint George?

In Saint George, snow does not fall in March through October.

How many hours of daylight does Saint George have in August?

In Saint George, the average day length in August is 13h and 32min.

When are sunrise and sunset in August in Saint George?

On the first day of August in Saint George, sunrise is at 6:39 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:04 pm MDT.

How many hours of sunshine does Saint George have in August?

In Saint George, Utah, the average sunshine duration in August is 11.5h.

What is the month with the highest UV index in Saint George?

June through August, with an average maximum UV index of 7, are months with the highest UV index in Saint George, Utah.

How high is the UV index in August in Saint George?

In Saint George, Utah, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Saint George, UT

Average temperature in August - Saint George, UT
  • Average high temperature in August: 92.3°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (47.7°F).

  • Average low temperature in August: 71.2°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is December (31.6°F).

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Average pressure in August
Saint George, UT

Average pressure in August - Saint George, UT
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in August
Saint George, UT

Average wind speed in August - Saint George, UT
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are August and December (5.3mph).

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Average humidity in August
Saint George, UT

Average humidity in August - Saint George, UT
  • Average humidity in August: 28%

The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).

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Average rainfall in August
Saint George, UT

Average rainfall in August - Saint George, UT
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in August
Saint George, UT

Average rainfall days in August - Saint George, UT
  • Average rainfall days in August: 5.4 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (1.8 days).

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Average snowfall in August
Saint George, UT

Average snowfall in August - Saint George, UT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days in August
Saint George, UT

Average snowfall days in August - Saint George, UT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Saint George, UT

Average daylight in August / Average sunshine in August - Saint George, UT
  • Average daylight in August: 13h and 32min

The month with the longest days is June (Average daylight: 14h and 40min).
The month with the shortest days is December (Average daylight: 9h and 40min).

  • Average sunshine in August: 11h and 30min

The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in August
Saint George, UT

Average sunshine days in August - Saint George, UT
  • Average sunshine days in August: 19.8 days

The month with the most sunshine days is June (26.3 days).
The month with the least sunshine days is July (17.9 days).

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Average UV index in August
Saint George, UT

Average UV index in August - Saint George, UT
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in August
Saint George, UT

Average cloud cover in August - Saint George, UT
  • Average cloud cover in August: 7

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).

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Average visibility in August
Saint George, UT

Average visibility in August - Saint George, UT
  • Average visibility in August: 6mi

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

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