August weather forecast
Glenmont, MD

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Weather in August

August, the last month of the summer in Glenmont, is another warm month, with an average temperature varying between 67.6°F (19.8°C) and 84.9°F (29.4°C).

Temperature

As August takes its course, Glenmont's average high-temperature registers at a moderately hot 84.9°F (29.4°C), closely aligning with the preceding month. During August, Glenmont experiences an average low-temperature of 67.6°F (19.8°C) at night.

Heat index

August's average heat index is estimated at a tropical 93.2°F (34°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In Glenmont, the average relative humidity in August is 71%.

Rainfall

The month with the most rainfall is August, when the rain falls for 17.1 days and typically aggregates up to 4.13" (105mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

The average sunshine in August is 10.2h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In August, in Glenmont, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 93.2°F (34°C).

What is the average humidity in August?

In Glenmont, the average relative humidity in August is 71%.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 17.1 days and typically aggregates up to 4.13" (105mm) of precipitation.

How much does it rain in August?

In Glenmont, during August, the rain falls for 17.1 days and regularly aggregates up to 4.13" (105mm) of precipitation.

When it does not snow?

In Glenmont, snow does not fall in May through October.

What is the average length of the day in August?

In August, the average day length is 13h and 39min.

When is the sunrise / sunset in August?

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 many hours of sunshine does Glenmont have in August?

In Glenmont, the average sunshine duration in August is 10.2h.

When is the highest UV index in Glenmont?

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?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Glenmont, MD

Average temperature in August - Glenmont, MD
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in August
Glenmont, MD

Average pressure in August - Glenmont, 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).

Average wind speed in August
Glenmont, MD

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in August
Glenmont, MD

Average humidity in August - Glenmont, MD
  • Average humidity in August: 71%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in August
Glenmont, MD

Average rainfall in August - Glenmont, MD
  • Average rainfall in August: 4.13"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in August
Glenmont, MD

Average rainfall days in August - Glenmont, MD
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in August
Glenmont, MD

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

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Glenmont, MD

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

The months with the highest number of snowfall days are January and February (5.1 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
Glenmont, MD

Average daylight in August / Average sunshine in August - Glenmont, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in August
Glenmont, MD

Average sunshine days in August - Glenmont, MD
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in August
Glenmont, MD

Average UV index in August - Glenmont, 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).

Average cloud cover in August
Glenmont, MD

Average cloud cover in August - Glenmont, 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).

Average visibility in August
Glenmont, MD

Average visibility in August - Glenmont, 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).

Glenmont, Maryland, USA

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