August weather forecast
Sullivan City, TX

Share

Weather in August

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

Temperature

The warmest month is August, with an average high-temperature of 99.9°F (37.7°C) and an average low-temperature of 80.1°F (26.7°C).

Heat index

Throughout August, the heat index is evaluated at a life-threatening hot 123.8°F (51°C). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

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

Snowfall

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

Daylight

The average length of the day in August 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 is 9.7h.

UV index

July and August, with an average maximum UV index of 8, are months with the highest UV index. A UV Index of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In August, a daily maximum UV index of 8 leads to the following instructions:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What part of the year is the hottest?

Sullivan City's warmest month, August, generally records average temperatures ranging from a high of 99.9°F (37.7°C) to a low of 80.1°F (26.7°C).

How hot does it get in Sullivan City in August?

An average high-temperature, in August, in Sullivan City, 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. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 123.8°F (51°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 55%.

What is the average humidity in August?

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

How much does it rain in August?

In Sullivan City, during August, the rain falls for 6.3 days and regularly aggregates up to 0.63" (16mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August?

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

What time are sunrise and sunset in August?

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?

The average sunshine duration in August is 9.7h.

What is the month with the highest UV index?

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 is 8. A UV Index value of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV radiation.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Sullivan City, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location