August weather forecast
Crystal City, TX

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Weather in August

The last month of the summer, August, is also a sweltering month in Crystal City, Texas, with an average temperature ranging between min 79°F (26.1°C) and max 99.1°F (37.3°C).

Temperature

August, known for its average high temperature of 99.1°F (37.3°C) and an average low temperature of 79°F (26.1°C), is the warmest month.

Heat index

The heat index value for August is estimated at a blazing hot 114.8°F (46°C). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

August is the least humid month, with an average relative humidity of 49%.

Rainfall

In August, the rain falls for 7.2 days. Throughout August, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Crystal City, there are 101.5 rainfall days, and 12.48" (317mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Crystal City.

Daylight

In August, the average length of the day in Crystal City is 13h and 8min.
On the first day of the month, sunrise is at 7:01 am and sunset at 8:30 pm. On the last day of August, in Crystal City, sunrise is at 7:17 am and sunset at 8:01 pm CDT.

Sunshine

In August, the average sunshine in Crystal City is 9.6h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily UV index of 8 turns into the following recommendations:
Take all necessary measures. Eyes and skin are at risk if left unprotected. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Crystal City?

The warmest period in Crystal City, Texas, is August, when temperatures fluctuate between an average high of 99.1°F (37.3°C) and a low of 79°F (26.1°C).

How hot is it in Crystal City in August?

In Crystal City, 99.1°F (37.3°C) is the average high-temperature and 79°F (26.1°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is estimated at 114.8°F (46°C).

What is the least humid month in Crystal City?

With an average relative humidity of 49%, August is the least humid month.

What is the average humidity in August in Crystal City?

In Crystal City, Texas, the average relative humidity in August is 49%.

How many days does it rain in August in Crystal City?

In Crystal City, in August, during 7.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Crystal City?

In Crystal City, Texas, snow does not fall in February through December.

What is the average length of the day in August in Crystal City?

In August, the average day length in Crystal City is 13h and 8min.

When are sunrise and sunset in August in Crystal City?

On the first day of August in Crystal City, Texas, sunrise is at 7:01 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 8:01 pm CDT.

How many hours of sunshine does Crystal City have in August?

In August, the average sunshine duration is 9.6h.

What is the month with the highest UV index in Crystal City?

June through August, with an average maximum UV index of 8, are months with the highest UV index in Crystal City, Texas.

What is the UV index reading in August in Crystal City?

In Crystal City, Texas, the average daily maximum UV index in August is 8. A UV Index estimate of 8 to 10 represents a very high health risk 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
Crystal City, TX

Average temperature in August - Crystal City, TX
  • Average high temperature in August: 99.1°F

The warmest month (with the highest average high temperature) is August (99.1°F).
The month with the lowest average high temperature is January (64.8°F).

  • Average low temperature in August: 79°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

Average pressure in August
Crystal City, TX

Average pressure in August - Crystal City, TX
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

Average wind speed in August
Crystal City, TX

Average wind speed in August - Crystal City, TX
  • Average wind speed in August: 9.3mph

The windiest month (with the highest average wind speed) is May (10.9mph).
The calmest month (with the lowest average wind speed) is December (7mph).

Average humidity in August
Crystal City, TX

Average humidity in August - Crystal City, TX
  • Average humidity in August: 49%

The month with the highest relative humidity is November (64%).
The month with the lowest relative humidity is August (49%).

Average rainfall in August
Crystal City, TX

Average rainfall in August - Crystal City, TX
  • Average rainfall in August: 0.91"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in August
Crystal City, TX

Average rainfall days in August - Crystal City, TX
  • Average rainfall days in August: 7.2 days

The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in August
Crystal City, TX

Average snowfall in August - Crystal City, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August
Crystal City, TX

Average snowfall days in August - Crystal City, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and December (0 days).

Average daylight in August /
Average sunshine in August
Crystal City, TX

Average daylight in August / Average sunshine in August - Crystal City, TX
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in August
Crystal City, TX

Average sunshine days in August - Crystal City, TX
  • Average sunshine days in August: 22.2 days

The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is September (13.9 days).

Average UV index in August
Crystal City, TX

Average UV index in August - Crystal City, TX
  • Average UV index in August: 8

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in August
Crystal City, TX

Average cloud cover in August - Crystal City, TX
  • Average cloud cover in August: 17

The months with the most cloud cover are March and May (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in August
Crystal City, TX

Average visibility in August - Crystal City, TX
  • 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).

Crystal City, Texas, USA

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