August weather forecast
Glen Echo, MD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Glen Echo, Maryland, with an average temperature varying between 68°F (20°C) and 85.8°F (29.9°C).

Temperature

The shift to August signals an average high-temperature of a warm 85.8°F (29.9°C), subtly varied from July's 87.8°F (31°C). In Glen Echo, the average temperature during the nights of August drops to a pleasant 68°F (20°C).

Heat index

The heat index value during August is calculated to be a torrid 95°F (35°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Glen Echo, the average relative humidity in August is 70%.

Rainfall

The month with the most rainfall in Glen Echo, Maryland, is August, when the rain falls for 16.7 days and typically aggregates up to 3.82" (97mm) of precipitation.

Snowfall

In Glen Echo, snow does not fall in May through October.

Daylight

In Glen Echo, the average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of August, in Glen Echo, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

How hot is it in Glen Echo in August?

In August, in Glen Echo, the average high-temperature is 85.8°F (29.9°C), and the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 95°F (35°C).

What is the average humidity in August in Glen Echo?

The average relative humidity in August is 70%.

What is the wettest month in Glen Echo?

August is the month with the most rainfall in Glen Echo. Rain falls for 16.7 days and accumulates 3.82" (97mm) of precipitation.

How many days does it rain in August in Glen Echo?

In Glen Echo, in August, during 16.7 rainfall days, 3.82" (97mm) of precipitation is typically accumulated.

When it does not snow in Glen Echo?

May through October are months without snowfall.

What is the average length of the day in August in Glen Echo?

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

What time are sunrise and sunset in August in Glen Echo?

On the first day of August in Glen Echo, Maryland, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

How long on average sun shines in August in Glen Echo?

The average sunshine duration in August is 10.2h.

When is the highest UV index in Glen Echo?

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

How high is the UV index in August in Glen Echo?

In August, the average daily maximum UV index in Glen Echo, Maryland, 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
Glen Echo, MD

Average temperature in August - Glen Echo, MD
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in August: 68°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in August
Glen Echo, MD

Average pressure in August - Glen Echo, 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
Glen Echo, MD

Average wind speed in August - Glen Echo, MD
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in August
Glen Echo, MD

Average humidity in August - Glen Echo, MD
  • Average humidity in August: 70%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in August
Glen Echo, MD

Average rainfall in August - Glen Echo, MD
  • Average rainfall in August: 3.82"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").

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Average rainfall days in August
Glen Echo, MD

Average rainfall days in August - Glen Echo, MD
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in August
Glen Echo, MD

Average snowfall in August - Glen Echo, 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 and October (0").

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Average snowfall days in August
Glen Echo, MD

Average snowfall days in August - Glen Echo, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.4 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
Glen Echo, MD

Average daylight in August / Average sunshine in August - Glen Echo, 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).

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Average sunshine days in August
Glen Echo, MD

Average sunshine days in August - Glen Echo, MD
  • Average sunshine days in August: 12.7 days

The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).

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Average UV index in August
Glen Echo, MD

Average UV index in August - Glen Echo, 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
Glen Echo, MD

Average cloud cover in August - Glen Echo, MD
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in August
Glen Echo, MD

Average visibility in August - Glen Echo, 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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Glen Echo, Maryland, USA

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