August weather forecast
Brightwood, MD

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Weather in August

The last month of the summer, August, is another warm month in Brightwood, Maryland, with an average temperature varying between 83.7°F (28.7°C) and 69.1°F (20.6°C).

Temperature

The advent of August brings an average high-temperature of a still warm 83.7°F (28.7°C), almost identical to the preceding month. Brightwood, during the nights of August, experiences an average temperature drop to an agreeable 69.1°F (20.6°C).

Heat index

The heat index value for August is calculated to be a hot 91.4°F (33°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 are especially crucial for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

The average relative humidity in August is 73%.

Rainfall

The month with the most rainfall is August, when the rain falls for 13.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 39min.
On the first day of August, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:38 pm EDT.

Sunshine

In August, the average sunshine in Brightwood, Maryland, is 10.4h.

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 hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

Is it hot during August?

The average high-temperature and low-temperature during August are 83.7°F (28.7°C) and 69.1°F (20.6°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 91.4°F (33°C).

What is the average humidity in August?

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

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 13.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

How many days does it rain in August?

In Brightwood, in August, during 13.9 rainfall days, 3.54" (90mm) of precipitation is typically accumulated.

When it does not snow in Brightwood?

May through October are months without snowfall.

How many hours of daylight does Brightwood have in August?

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

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:38 pm EDT.

How many hours of sunshine does Brightwood have in August?

In August, the average sunshine duration is 10.4h.

What is the month with the highest UV index?

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

How high is the UV index in August in Brightwood?

The average daily maximum UV index in August in Brightwood is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Brightwood, MD

Average temperature in August - Brightwood, MD
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in August
Brightwood, MD

Average pressure in August - Brightwood, 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
Brightwood, MD

Average wind speed in August - Brightwood, MD
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in August
Brightwood, MD

Average humidity in August - Brightwood, MD
  • Average humidity in August: 73%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in August
Brightwood, MD

Average rainfall in August - Brightwood, MD
  • Average rainfall in August: 3.54"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in August
Brightwood, MD

Average rainfall days in August - Brightwood, MD
  • Average rainfall days in August: 13.9 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in August
Brightwood, MD

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

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Brightwood, MD

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

The month with the highest number of snowfall days is January (4.4 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
Brightwood, MD

Average daylight in August / Average sunshine in August - Brightwood, 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 6min).

Average sunshine days in August
Brightwood, MD

Average sunshine days in August - Brightwood, MD
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in August
Brightwood, MD

Average UV index in August - Brightwood, 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
Brightwood, MD

Average cloud cover in August - Brightwood, MD
  • Average cloud cover in August: 30

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
Brightwood, MD

Average visibility in August - Brightwood, 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).

Brightwood, Maryland, USA

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