August weather forecast
Riverdale Park, MD

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Weather in August

August, the last month of the summer in Riverdale Park, is also a moderately hot month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 68.7°F (20.4°C).

Temperature

Riverdale Park's weather in August displays an average high-temperature of a moderately hot 85.1°F (29.5°C), showing minor disparity from July's 87.4°F (30.8°C). In the month of August, Riverdale Park witnesses a consistent average low-temperature of 68.7°F (20.4°C).

Heat index

The heat index value for August is computed to be a hot 93.2°F (34°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity is 72%.

Rainfall

The month with the most rainfall in Riverdale Park is August, when the rain falls for 15.8 days and typically aggregates up to 3.58" (91mm) of precipitation.

Snowfall

May through November are months without snowfall in Riverdale Park.

Daylight

The average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:18 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 in Riverdale Park is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Riverdale Park. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

Is it hot in Riverdale Park during August?

In Riverdale Park, in August, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 68.7°F (20.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 93.2°F (34°C).

What is the average humidity in August in Riverdale Park?

In August, the average relative humidity is 72%.

What is the wettest month in Riverdale Park?

The month with the most rainfall is August, when the rain falls for 15.8 days and typically aggregates up to 3.58" (91mm) of precipitation.

How much does it rain in Riverdale Park in August?

In Riverdale Park, Maryland, during August, the rain falls for 15.8 days and regularly aggregates up to 3.58" (91mm) of precipitation.

When it does not snow in Riverdale Park?

May through November are months without snowfall in Riverdale Park, Maryland.

What is the average length of the day in August in Riverdale Park?

In August, the average day length in Riverdale Park, Maryland, is 13h and 38min.

When are sunrise and sunset in August in Riverdale Park?

On the first day of August in Riverdale Park, sunrise is at 6:09 am and sunset at 8:18 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 Riverdale Park?

In Riverdale Park, Maryland, the average sunshine duration in August is 10.3h.

What are the months with the highest UV index in Riverdale Park?

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

What is the UV index intensity in August in Riverdale Park?

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

Average temperature in August - Riverdale Park, MD
  • Average high temperature in August: 85.1°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in August: 68.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in August
Riverdale Park, MD

Average pressure in August - Riverdale Park, 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
Riverdale Park, MD

Average wind speed in August - Riverdale Park, MD
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in August
Riverdale Park, MD

Average humidity in August - Riverdale Park, MD
  • Average humidity in August: 72%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in August
Riverdale Park, MD

Average rainfall in August - Riverdale Park, MD
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in August
Riverdale Park, MD

Average rainfall days in August - Riverdale Park, MD
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

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Average snowfall in August
Riverdale Park, MD

Average snowfall in August - Riverdale Park, 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, October and November (0").

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Average snowfall days in August
Riverdale Park, MD

Average snowfall days in August - Riverdale Park, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.1 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
Riverdale Park, MD

Average daylight in August / Average sunshine in August - Riverdale Park, 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 0min).

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Average sunshine days in August
Riverdale Park, MD

Average sunshine days in August - Riverdale Park, MD
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in August
Riverdale Park, MD

Average UV index in August - Riverdale Park, 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 and December (UV index 2).

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Average cloud cover in August
Riverdale Park, MD

Average cloud cover in August - Riverdale Park, MD
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in August
Riverdale Park, MD

Average visibility in August - Riverdale Park, 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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Riverdale Park, Maryland, USA

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