August weather forecast
Chestnut Hill, MD

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Weather in August

The last month of the summer, August, is another warm month in Chestnut Hill, Maryland, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 82.8°F (28.2°C).

Temperature

The onset of August marks an average high-temperature of a still moderately hot 82.8°F (28.2°C), hardly differing from July's 84.9°F (29.4°C). During the month of August, the temperature falls to an average of 66.7°F (19.3°C).

Heat index

The heat index for August is computed to be a tropical 89.6°F (32°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In Chestnut Hill, Maryland, the average relative humidity in August is 75%.

Rainfall

The month with the most rainfall in Chestnut Hill, Maryland, is August, when the rain falls for 11.3 days and typically aggregates up to 1.46" (37mm) of precipitation.

Snowfall

In Chestnut Hill, snow does not fall in May through October.

Daylight

In August, the average length of the day is 13h and 40min.
On the first day of August in Chestnut Hill, sunrise is at 6:07 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index in Chestnut Hill 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 exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

How hot is it in Chestnut Hill in August?

The average high-temperature, in August, in Chestnut Hill, is 82.8°F (28.2°C), while the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 89.6°F (32°C).

What is the average humidity in August in Chestnut Hill?

In August, the average relative humidity in Chestnut Hill is 75%.

What is the wettest month in Chestnut Hill?

The month with the most rainfall in Chestnut Hill is August, when the rain falls for 11.3 days and typically aggregates up to 1.46" (37mm) of precipitation.

How many days does it rain in August in Chestnut Hill?

In Chestnut Hill, in August, it is raining for 11.3 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Chestnut Hill?

May through October are months without snowfall in Chestnut Hill, Maryland.

How many hours of daylight does Chestnut Hill have in August?

The average day length in August in Chestnut Hill is 13h and 40min.

When is the sunrise / sunset in August in Chestnut Hill?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

How long on average sun shines in August in Chestnut Hill?

The average sunshine duration in August in Chestnut Hill is 10.3h.

When is the highest UV index in Chestnut Hill?

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 Chestnut Hill?

In Chestnut Hill, Maryland, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents 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
Chestnut Hill, MD

Average temperature in August - Chestnut Hill, MD
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in August
Chestnut Hill, MD

Average pressure in August - Chestnut Hill, 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).

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Average wind speed in August
Chestnut Hill, MD

Average wind speed in August - Chestnut Hill, MD
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in August
Chestnut Hill, MD

Average humidity in August - Chestnut Hill, MD
  • Average humidity in August: 75%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in August
Chestnut Hill, MD

Average rainfall in August - Chestnut Hill, MD
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in August
Chestnut Hill, MD

Average rainfall days in August - Chestnut Hill, MD
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).

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Average snowfall in August
Chestnut Hill, MD

Average snowfall in August - Chestnut Hill, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Chestnut Hill, MD

Average snowfall days in August - Chestnut Hill, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.8 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
Chestnut Hill, MD

Average daylight in August / Average sunshine in August - Chestnut Hill, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Chestnut Hill, MD

Average sunshine days in August - Chestnut Hill, MD
  • Average sunshine days in August: 16.2 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).

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Average UV index in August
Chestnut Hill, MD

Average UV index in August - Chestnut Hill, 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, February, November and December (UV index 2).

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Average cloud cover in August
Chestnut Hill, MD

Average cloud cover in August - Chestnut Hill, MD
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Chestnut Hill, MD

Average visibility in August - Chestnut Hill, 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).

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Chestnut Hill, Maryland, USA

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