August weather forecast and climate
Saint George, UT

What is the temperature in August in Saint George?

The average high-temperature, in August, is 99.1°F (37.3°C), while the average low-temperature is 72.9°F (22.7°C).

How many days does it rain in August in Saint George?

In Saint George, Utah, in August, it is raining for 3.5 days, with typically 0.8" (19.3mm) of accumulated precipitation.
Average temperature in August - Saint George, UT
  • Average high temperature in August: 99.1°F

The warmest month (with the highest average high temperature) is July (101.4°F).
The month with the lowest average high temperature is December (51.9°F).

  • Average low temperature in August: 72.8°F

The month with the highest average low temperature is July (74.5°F).
The coldest month (with the lowest average low temperature) is December (30.6°F).

Average rainfall in August - Saint George, UT
  • Average rainfall in August: 0.8"

The wettest month (with the highest rainfall) is January (1.4").
Driest months (with the lowest rainfall) are May and June (0.2").

Average rainfall days in August - Saint George, UT
  • Average rainfall days in August: 3.5 days

The month with the highest number of rainy days is February (6.1 days).
The month with the lowest number of rainy days is June (1.5 days).

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

The month with the highest snowfall is January (0.7").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

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

Months with the highest number of snowfall days are January, February and December (0.2 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Saint George, UT
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in August: 11h

The month with most sunshine is June (Average sunshine: 13h).
Months with least sunshine are January and December (Average sunshine: 7).

Average UV index in August - Saint George, UT
  • Average UV index in August: 10

The month with the highest UV index is July (UV index 11).
Months with the lowest UV index are January and December (UV index 2).

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