August weather forecast
Langley Park, MD

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Weather in August

August, the last month of the summer in Langley Park, is also a moderately hot month, with an average temperature fluctuating between 85.6°F (29.8°C) and 68.2°F (20.1°C).

Temperature

Langley Park starts August with an average high-temperature of a warm 85.6°F (29.8°C), a minor shift from July's 87.4°F (30.8°C). Langley Park's average low-temperature during August nights is observed to be an agreeable 68.2°F (20.1°C).

Heat index

Throughout August, the heat index is estimated at a sweltering 95°F (35°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. 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. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Langley Park, Maryland, the average relative humidity in August is 70%.

Rainfall

The month with the most rainfall in Langley Park, Maryland, is August, when the rain falls for 16.3 days and typically aggregates up to 3.86" (98mm) of precipitation.

Snowfall

May through October are months without snowfall in Langley Park.

Daylight

In Langley Park, the average length of the day in August is 13h and 38min.
On the first day of August in Langley Park, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:39 pm EDT.

Sunshine

In August, the average sunshine is 10.1h.

UV index

The months with the highest UV index in Langley Park are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

How hot does it get in Langley Park in August?

An average high-temperature, in August, in Langley Park, is 85.6°F (29.8°C) and the average low-temperature is 68.2°F (20.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 95°F (35°C).

What is the average humidity in August in Langley Park?

The average relative humidity in August in Langley Park is 70%.

What is the rainiest month in Langley Park?

August is the month with the most rainfall in Langley Park. Rain falls for 16.3 days and accumulates 3.86" (98mm) of precipitation.

How many days does it rain in August in Langley Park?

In Langley Park, Maryland, during August, the rain falls for 16.3 days and regularly aggregates up to 3.86" (98mm) of precipitation.

When it does not snow in Langley Park?

In Langley Park, Maryland, snow does not fall in May through October.

What is the average length of the day in August in Langley Park?

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

When are sunrise and sunset in August in Langley Park?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:39 pm EDT.

How long on average sun shines in August in Langley Park?

In Langley Park, the average sunshine duration in August is 10.1h.

When is the highest UV index in Langley Park?

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

What is the UV index reading in August in Langley Park?

In Langley Park, Maryland, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Langley Park, MD

Average temperature in August - Langley Park, MD
  • Average high temperature in August: 85.6°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 (39.7°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

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Average pressure in August
Langley Park, MD

Average pressure in August - Langley Park, 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 (29.95"Hg).

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Average wind speed in August
Langley Park, MD

Average wind speed in August - Langley Park, MD
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in August
Langley Park, MD

Average humidity in August - Langley Park, MD
  • Average humidity in August: 70%

The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in August
Langley Park, MD

Average rainfall in August - Langley Park, MD
  • Average rainfall in August: 3.86"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in August
Langley Park, MD

Average rainfall days in August - Langley Park, MD
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in August
Langley Park, MD

Average snowfall in August - Langley Park, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Langley Park, MD

Average snowfall days in August - Langley Park, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.6 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
Langley Park, MD

Average daylight in August / Average sunshine in August - Langley Park, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Langley Park, MD

Average sunshine days in August - Langley Park, MD
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).

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Average UV index in August
Langley Park, MD

Average UV index in August - Langley Park, 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, November and December (UV index 2).

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Average cloud cover in August
Langley Park, MD

Average cloud cover in August - Langley Park, MD
  • Average cloud cover in August: 34

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in August
Langley Park, MD

Average visibility in August - Langley Park, MD
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Langley Park, Maryland, USA

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