Dallas
Texas, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Dallas, TX

Dallas, Texas, modern city skyscrapers viewed from above, just before sunset
Dallas, Texas, modern city skyscrapers viewed from above, just before sunset
August has the highest temperature of the year, making Dallas weather very uncomfortable. August is also the driest during the year, registering the lowest 1.9" (48.3mm) of precipitation, collected from only four and a half days. August has a low humidity of 59.5%, and an average of ten sunshine hours per day. With a high UV index of 10, it becomes critical to use the umbrella or shade all the time, while outdoors.
The severe heat waves hit Dallas on the hottest days, and it is vital to keep indoors. Outdoors become very uncomfortable, and both locals and tourists opt to visit downtown Dallas at night, appreciative of the fourteen hours of daylight.
The nights are warm and pleasant as the temperature remains in the range of 76.8°F (24.9°C) and 96.4°F (35.8°C).

What is the warmest month in Dallas?

August is the warmest month in Dallas, with an average high-temperature of 96.4°F (35.8°C) and an average low-temperature of 76.8°F (24.9°C).

What is the temperature in August in Dallas?

In August, in Dallas, the average high-temperature is 96.4°F (35.8°C), and the average low-temperature is 76.8°F (24.9°C).

What is the least humid month in Dallas?

With an average relative humidity of 59.5%, August is the least humid month in Dallas.

What is the average humidity in August in Dallas?

The average relative humidity in August is 59.5%.

How many days does it rain in August in Dallas?

In Dallas, Texas, during August, the rain falls for 4.6 days and regularly aggregates up to 1.9" (47.5mm) of precipitation.

What is the driest month in Dallas?

August is the month with the least rainfall in Dallas, Texas. Rain falls for 4.6 days and accumulates 1.9" (47.5mm) of precipitation.

How many hours of daylight does Dallas have in August?

In August, the average length of the day in Dallas, Texas, is 13.3h.

How many hours of sunshine does Dallas have in August?

In Dallas, the average sunshine in August is 9.8h.

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

May through August, with an average maximum UV index of 10, are months with the highest UV index in Dallas.

What is the UV index reading in August in Dallas?

In August, the average daily maximum UV index in Dallas is 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in August - Dallas, TX
  • Average high temperature in August: 96.4°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in August: 76.8°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (37.3°F).

Average humidity in August - Dallas, TX
  • Average humidity in August: 59.5%

The month with the highest relative humidity is May (69.7%).
The month with the lowest relative humidity is August (59.5%).

Average rainfall in August - Dallas, TX
  • Average rainfall in August: 1.9"

The wettest month (with the highest rainfall) is May (4.9").
The driest month (with the lowest rainfall) is August (1.9").

Average rainfall days in August - Dallas, TX
  • Average rainfall days in August: 4.6 days

The month with the highest number of rainy days is May (9.7 days).
The month with the lowest number of rainy days is August (4.6 days).

Average snowfall in August - Dallas, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.6").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August - Dallas, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.5 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Dallas, TX
  • Average daylight in August: 13.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in August: 9.8h

The month with most sunshine is July (Average sunshine: 10.7h).
The month with least sunshine is December (Average sunshine: 5.6h).

Average UV index in August - Dallas, TX
  • Average UV index in August: 10

Months with the highest UV index are May, June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).