August weather forecast
Glenn Dale, MD

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Weather in August

August, the last month of the summer in Glenn Dale, is another warm month, with temperature in the range of an average high of 84.4°F and an average low of 68.7°F.

Temperature

Glenn Dale, Maryland, marks the onset of August with an average high-temperature of a warm 84.4°F, a subtle shift from July's 86.4°F. During August, an average low-temperature of 68.7°F is observed in Glenn Dale.

Heat index

The heat index value during August is appraised at a hot 93.2°F. Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In August, the average relative humidity in Glenn Dale is 73%.

Rainfall

The month with the most rainfall in Glenn Dale is August, when the rain falls for 16.2 days and typically aggregates up to 3.62" of precipitation.

Snowfall

In Glenn Dale, Maryland, snow does not fall in May through October.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of August in Glenn Dale, sunrise is at 6:08 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:40 pm EDT.

Sunshine

In Glenn Dale, the average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Glenn Dale, Maryland. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 6 in August transforms into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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FAQ

How hot does it get in Glenn Dale in August?

The average high-temperature and low-temperature in Glenn Dale during August are 84.4°F and 68.7°F respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is appraised at 93.2°F.

What is the average humidity in August in Glenn Dale?

The average relative humidity in August in Glenn Dale is 73%.

What is the wettest month in Glenn Dale?

The month with the most rainfall in Glenn Dale, Maryland, is August, when the rain falls for 16.2 days and typically aggregates up to 3.62" of precipitation.

How much does it rain in Glenn Dale in August?

In Glenn Dale, in August, during 16.2 rainfall days, 3.62" of precipitation is typically accumulated.

When it does not snow in Glenn Dale?

May through October are months without snowfall.

What is the average length of the day in August in Glenn Dale?

The average day length in August in Glenn Dale, Maryland, is 13h and 38min.

When is the sunrise / sunset in August in Glenn Dale?

In August, on the first day of the month, sunrise is at 6:08 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:40 pm EDT.

How long on average sun shines in August in Glenn Dale?

The average sunshine duration in August in Glenn Dale is 10.3h.

What is the month with the highest UV index in Glenn Dale?

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

How high is the UV index in August in Glenn Dale?

In August, the average daily maximum UV index in Glenn Dale, Maryland, is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Glenn Dale, MD

Average temperature in August - Glenn Dale, MD
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 68.7°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28°F).

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Average pressure in August
Glenn Dale, MD

Average pressure in August - Glenn Dale, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Glenn Dale, MD

Average wind speed in August - Glenn Dale, MD
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average humidity in August
Glenn Dale, MD

Average humidity in August - Glenn Dale, MD
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in August
Glenn Dale, MD

Average rainfall in August - Glenn Dale, MD
  • Average rainfall in August: 3.62"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in August
Glenn Dale, MD

Average rainfall days in August - Glenn Dale, MD
  • Average rainfall days in August: 16.2 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in August
Glenn Dale, MD

Average snowfall in August - Glenn Dale, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Glenn Dale, MD

Average snowfall days in August - Glenn Dale, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Glenn Dale, MD

Average daylight in August / Average sunshine in August - Glenn Dale, MD
  • 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in August
Glenn Dale, MD

Average sunshine days in August - Glenn Dale, MD
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in August
Glenn Dale, MD

Average UV index in August - Glenn Dale, MD
  • 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
Glenn Dale, MD

Average cloud cover in August - Glenn Dale, MD
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in August
Glenn Dale, MD

Average visibility in August - Glenn Dale, MD
  • 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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Glenn Dale, Maryland, USA

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