August weather forecast
Houston, DE

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Weather in August

The last month of the summer, August, is also a moderately hot month in Houston, Delaware, with an average temperature varying between 69.3°F (20.7°C) and 81.5°F (27.5°C).

Temperature

The arrival of August is marked by an average high-temperature of a still warm 81.5°F (27.5°C), bearing a close resemblance to July. Houston experiences a consistent average temperature of 69.3°F (20.7°C) throughout the nights in August.

Heat index

The heat index in August is evaluated at a tropical 87.8°F (31°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In Houston, the average relative humidity in August is 79%.

Rainfall

The month with the most rainfall in Houston is August, when the rain falls for 16 days and typically aggregates up to 3.07" (78mm) of precipitation.

Snowfall

In Houston, snow does not fall in April, June through October.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of August, sunrise is at 6:03 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:33 pm EDT.

Sunshine

The average sunshine in August in Houston is 10.4h.

UV index

The months with the highest UV index in Houston are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the average August temperature in Houston?

The high-temperature in Houston, Delaware, during August is 81.5°F (27.5°C) and the low-temperature is 69.3°F (20.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in August in Houston?

The average relative humidity in August is 79%.

What is the wettest month in Houston?

The month with the most rainfall in Houston is August, when the rain falls for 16 days and typically aggregates up to 3.07" (78mm) of precipitation.

How much does it rain in Houston in August?

In August, in Houston, the rain falls for 16 days. Throughout August, 3.07" (78mm) of precipitation is accumulated.

When it does not snow in Houston?

April, June through October are months without snowfall.

How many hours of daylight does Houston have in August?

In Houston, Delaware, the average day length in August is 13h and 38min.

When is the sunrise / sunset in August in Houston?

On the first day of August in Houston, Delaware, sunrise is at 6:03 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:33 pm EDT.

How long on average sun shines in August in Houston?

In August, the average sunshine duration in Houston is 10.4h.

When is the highest UV index in Houston?

The months with the highest UV index in Houston are May through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Houston?

In Houston, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Houston, DE

Average temperature in August - Houston, DE
  • Average high temperature in August: 81.5°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in August: 69.3°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in August
Houston, DE

Average pressure in August - Houston, DE
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Houston, DE

Average wind speed in August - Houston, DE
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in August
Houston, DE

Average humidity in August - Houston, DE
  • Average humidity in August: 79%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).

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Average rainfall in August
Houston, DE

Average rainfall in August - Houston, DE
  • Average rainfall in August: 3.07"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days in August
Houston, DE

Average rainfall days in August - Houston, DE
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in August
Houston, DE

Average snowfall in August - Houston, DE
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in August
Houston, DE

Average snowfall days in August - Houston, DE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Houston, DE

Average daylight in August / Average sunshine in August - Houston, DE
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in August
Houston, DE

Average sunshine days in August - Houston, DE
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in August
Houston, DE

Average UV index in August - Houston, DE
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in August
Houston, DE

Average cloud cover in August - Houston, DE
  • Average cloud cover in August: 29

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in August
Houston, DE

Average visibility in August - Houston, DE
  • 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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Houston, Delaware, USA

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