August weather forecast
Glenarden, MD

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Weather in August

The last month of the summer, August, is another warm month in Glenarden, Maryland, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 85.1°F (29.5°C).

Temperature

Glenarden records an average high-temperature of a warm 85.1°F (29.5°C) in August, closely mirroring the climate of the previous month. Glenarden experiences an average low-temperature of 68.7°F (20.4°C) in month of August.

Heat index

Throughout August, the heat index is computed to be a hot 93.2°F (34°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. 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.

Humidity

In Glenarden, Maryland, the average relative humidity in August is 72%.

Rainfall

August is the month with the most rainfall. Rain falls for 15.8 days and accumulates 3.58" (91mm) of precipitation.

Snowfall

In Glenarden, snow does not fall in May through November.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:38 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index 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 exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

During August, Glenarden experiences an average high-temperature of 85.1°F (29.5°C) and a low-temperature of 68.7°F (20.4°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in August?

In Glenarden, the average relative humidity in August is 72%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 15.8 days and accumulates 3.58" (91mm) of precipitation.

How much does it rain in August?

In Glenarden, in August, during 15.8 rainfall days, 3.58" (91mm) of precipitation is typically accumulated.

When it does not snow?

May through November are months without snowfall.

How many hours of daylight does Glenarden have in August?

The average day length in August is 13h and 38min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:38 pm EDT.

How many hours of sunshine does Glenarden have in August?

In August, the average sunshine duration is 10.3h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

The average daily maximum UV index in August in Glenarden is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Glenarden, MD

Average temperature in August - Glenarden, MD
  • Average high temperature in August: 85.1°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in August: 68.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in August
Glenarden, MD

Average pressure in August - Glenarden, 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).

Average wind speed in August
Glenarden, MD

Average wind speed in August - Glenarden, MD
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in August
Glenarden, MD

Average humidity in August - Glenarden, MD
  • Average humidity in August: 72%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in August
Glenarden, MD

Average rainfall in August - Glenarden, MD
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in August
Glenarden, MD

Average rainfall days in August - Glenarden, MD
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in August
Glenarden, MD

Average snowfall in August - Glenarden, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in August
Glenarden, MD

Average snowfall days in August - Glenarden, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Glenarden, MD

Average daylight in August / Average sunshine in August - Glenarden, 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).

Average sunshine days in August
Glenarden, MD

Average sunshine days in August - Glenarden, MD
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in August
Glenarden, MD

Average UV index in August - Glenarden, 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).

Average cloud cover in August
Glenarden, MD

Average cloud cover in August - Glenarden, 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).

Average visibility in August
Glenarden, MD

Average visibility in August - Glenarden, 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).

Glenarden, Maryland, USA

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