August weather forecast
Decatur, TX

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Weather in August

The last month of the summer, August, is a very hot month in Decatur, Texas, with an average temperature varying between 74.8°F (23.8°C) and 95.2°F (35.1°C).

Temperature

The warmest time of the year is August, with temperatures averaging a high of 95.2°F (35.1°C) and a low of 74.8°F (23.8°C).

Heat index

August's mean heat index is computed to be a blisteringly hot 109.4°F (43°C). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The least humid month in Decatur is August, with an average relative humidity of 56%.

Rainfall

In Decatur, in August, it is raining for 12.7 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 131.9 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

In Decatur, snow does not fall in April through November.

Daylight

In August, the average length of the day is 13h and 20min.
On the first day of the month, sunrise is at 6:43 am and sunset at 8:29 pm. On the last day of August, sunrise is at 7:04 am and sunset at 7:56 pm CDT.

Sunshine

In Decatur, the average sunshine in August is 10.9h.

UV index

The months with the highest UV index in Decatur are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during August, leads to the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What part of the year is the hottest in Decatur?

August is the month when Decatur, Texas, experiences its warmest temperatures, averaging a high of 95.2°F (35.1°C) and a low of 74.8°F (23.8°C).

How hot does it get in Decatur in August?

In Decatur, 95.2°F (35.1°C) is the average high-temperature and 74.8°F (23.8°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 109.4°F (43°C).

What is the least humid month in Decatur?

The least humid month in Decatur, Texas, is August, with an average relative humidity of 56%.

What is the average humidity in August in Decatur?

In August, the average relative humidity in Decatur, Texas, is 56%.

How much does it rain in Decatur in August?

In Decatur, Texas, in August, it is raining for 12.7 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Decatur?

In Decatur, snow does not fall in April through November.

What is the average length of the day in August in Decatur?

The average day length in August in Decatur is 13h and 20min.

When is the sunrise / sunset in August in Decatur?

On the first day of August, sunrise is at 6:43 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 7:56 pm CDT.

How many hours of sunshine does Decatur have in August?

In Decatur, the average sunshine duration in August is 10.9h.

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

The months with the highest UV index in Decatur, Texas, are June through August, with an average maximum UV index of 7.

How high is the UV index in August in Decatur?

In August, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Decatur, TX

Average temperature in August - Decatur, TX
  • Average high temperature in August: 95.2°F

The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in August: 74.8°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

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Average pressure in August
Decatur, TX

Average pressure in August - Decatur, TX
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Decatur, TX

Average wind speed in August - Decatur, TX
  • Average wind speed in August: 7.2mph

The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is September (7mph).

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Average humidity in August
Decatur, TX

Average humidity in August - Decatur, TX
  • Average humidity in August: 56%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in August
Decatur, TX

Average rainfall in August - Decatur, TX
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in August
Decatur, TX

Average rainfall days in August - Decatur, TX
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in August
Decatur, TX

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

The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Decatur, TX

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

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Decatur, TX

Average daylight in August / Average sunshine in August - Decatur, TX
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in August
Decatur, TX

Average sunshine days in August - Decatur, TX
  • Average sunshine days in August: 16.6 days

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is May (13.5 days).

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Average UV index in August
Decatur, TX

Average UV index in August - Decatur, TX
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in August
Decatur, TX

Average cloud cover in August - Decatur, TX
  • Average cloud cover in August: 18

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in August
Decatur, TX

Average visibility in August - Decatur, 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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Decatur, Texas, USA

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