August weather forecast
Wheaton, MD

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Weather in August

The last month of the summer, August, is another warm month in Wheaton, Maryland, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 67.6°F (19.8°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a moderately hot 84.9°F (29.4°C), not significantly different from the 87.3°F (30.7°C) of July. Wheaton observes an average low-temperature of 67.6°F (19.8°C) during August.

Heat index

In August, the heat index is computed to be a tropical 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Realize that the values for the heat index are set for shaded places and light winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

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

Rainfall

August is the month with the most rainfall in Wheaton. Rain falls for 17.1 days and accumulates 4.13" (105mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Wheaton 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

In August, the average sunshine in Wheaton is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Wheaton. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

Is it hot in Wheaton during August?

The high-temperature, in August, in Wheaton, records 84.9°F (29.4°C), while the low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in August is computed to be 93.2°F (34°C).

What is the average humidity in August in Wheaton?

The average relative humidity in August in Wheaton is 71%.

What is the wettest month in Wheaton?

August is the month with the most rainfall in Wheaton, Maryland. Rain falls for 17.1 days and accumulates 4.13" (105mm) of precipitation.

How many days does it rain in August in Wheaton?

In August, in Wheaton, the rain falls for 17.1 days. Throughout August, 4.13" (105mm) of precipitation is accumulated.

When it does not snow in Wheaton?

May through October are months without snowfall in Wheaton, Maryland.

How many hours of daylight does Wheaton have in August?

The average day length in August in Wheaton is 13h and 39min.

When are sunrise and sunset in August in Wheaton?

On the first day of August, 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 Wheaton?

The average sunshine duration in August in Wheaton, Maryland, is 10.2h.

When is the highest UV index in Wheaton?

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

How high is the UV index in August in Wheaton?

The average daily maximum UV index in August in Wheaton is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Wheaton, MD

Average temperature in August - Wheaton, 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).

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Average pressure in August
Wheaton, MD

Average pressure in August - Wheaton, 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
Wheaton, MD

Average wind speed in August - Wheaton, 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).

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Average humidity in August
Wheaton, MD

Average humidity in August - Wheaton, 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%).

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Average rainfall in August
Wheaton, MD

Average rainfall in August - Wheaton, 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").

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Average rainfall days in August
Wheaton, MD

Average rainfall days in August - Wheaton, 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).

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Average snowfall in August
Wheaton, MD

Average snowfall in August - Wheaton, 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").

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Average snowfall days in August
Wheaton, MD

Average snowfall days in August - Wheaton, 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).

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Average daylight in August /
Average sunshine in August
Wheaton, MD

Average daylight in August / Average sunshine in August - Wheaton, 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).

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Average sunshine days in August
Wheaton, MD

Average sunshine days in August - Wheaton, 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).

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Average UV index in August
Wheaton, MD

Average UV index in August - Wheaton, 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
Wheaton, MD

Average cloud cover in August - Wheaton, 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
Wheaton, MD

Average visibility in August - Wheaton, 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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Wheaton, Maryland, USA

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