August weather forecast
Sullivan City, TX

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Weather in August

The last month of the summer, August, is also a fiery hot month in Sullivan City, Texas, with an average temperature fluctuating between 99.9°F (37.7°C) and 80.1°F (26.7°C).

Temperature

August is the warmest month, exhibiting average temperatures of 99.9°F (37.7°C) at the peak and 80.1°F (26.7°C) at the base.

Heat index

For August, the heat index is appraised at a life-threatening hot 123.8°F (51°C). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
Heat index values are typically calculated for conditions of shade and a light breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The least humid month in Sullivan City is August, with an average relative humidity of 55%.

Rainfall

In August, the rain falls for 6.3 days. Throughout August, 0.63" (16mm) of precipitation is accumulated. In Sullivan City, during the entire year, the rain falls for 98.5 days and collects up to 12.17" (309mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

In August, the average length of the day in Sullivan City is 13h and 2min.
On the first day of August, sunrise is at 7:00 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:54 pm CDT.

Sunshine

In August, the average sunshine in Sullivan City, Texas, is 9.7h.

UV index

The months with the highest UV index in Sullivan City are July and August, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 8 in August suggests the following recommendations:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the warmest month in Sullivan City?

August, noted for its average high-temperature of 99.9°F (37.7°C) and an average low-temperature of 80.1°F (26.7°C), is considered the warmest month in Sullivan City, Texas.

How hot is it in Sullivan City in August?

In Sullivan City, in August, the average high-temperature is 99.9°F (37.7°C), and the average low-temperature is 80.1°F (26.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 123.8°F (51°C).

What is the least humid month in Sullivan City?

With an average relative humidity of 55%, August is the least humid month in Sullivan City.

What is the average humidity in August in Sullivan City?

In Sullivan City, the average relative humidity in August is 55%.

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

In Sullivan City, in August, during 6.3 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When it does not snow in Sullivan City?

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

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

In August, the average day length is 13h and 2min.

What time are sunrise and sunset in August in Sullivan City?

On the first day of August, sunrise is at 7:00 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:54 pm CDT.

How long on average sun shines in August in Sullivan City?

The average sunshine duration in August in Sullivan City, Texas, is 9.7h.

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

July and August, with an average maximum UV index of 8, are months with the highest UV index in Sullivan City.

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

The average daily maximum UV index in August in Sullivan City is 8. A UV Index value of 8 to 10 symbolizes a very high hazard to health 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
Sullivan City, TX

Average temperature in August - Sullivan City, TX
  • Average high temperature in August: 99.9°F

The warmest month (with the highest average high temperature) is August (99.9°F).
The month with the lowest average high temperature is January (69.8°F).

  • Average low temperature in August: 80.1°F

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).

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Average pressure in August
Sullivan City, TX

Average pressure in August - Sullivan City, TX
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed in August
Sullivan City, TX

Average wind speed in August - Sullivan City, TX
  • Average wind speed in August: 12.2mph

The windiest month (with the highest average wind speed) is July (13.7mph).
The calmest months (with the lowest average wind speed) are January and December (9.4mph).

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Average humidity in August
Sullivan City, TX

Average humidity in August - Sullivan City, TX
  • Average humidity in August: 55%

The month with the highest relative humidity is December (66%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in August
Sullivan City, TX

Average rainfall in August - Sullivan City, TX
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is September (2.2").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days in August
Sullivan City, TX

Average rainfall days in August - Sullivan City, TX
  • Average rainfall days in August: 6.3 days

The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.6 days).

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Average snowfall in August
Sullivan City, TX

Average snowfall in August - Sullivan 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").

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Average snowfall days in August
Sullivan City, TX

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

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in August / Average sunshine in August - Sullivan City, TX
  • Average daylight in August: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in August
Sullivan City, TX

Average sunshine days in August - Sullivan City, TX
  • Average sunshine days in August: 23.3 days

The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is September (12.9 days).

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Average UV index in August
Sullivan City, TX

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

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in August
Sullivan City, TX

Average cloud cover in August - Sullivan City, TX
  • Average cloud cover in August: 16

The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in August
Sullivan City, TX

Average visibility in August - Sullivan 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).

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Sullivan City, Texas, USA

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