August weather forecast
Arundel Hills, MD

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Weather in August

The last month of the summer, August, is another warm month in Arundel Hills, Maryland, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 68.7°F (20.4°C).

Temperature

The onset of August brings with it an average high-temperature of a still warm 83.8°F (28.8°C), showing a negligible variation from the month before. Throughout August, an average nighttime temperature of 68.7°F (20.4°C) is experienced.

Heat index

The heat index in August is calculated to be a hot 91.4°F (33°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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 August, the average relative humidity is 73%.

Rainfall

August is the month with the most rainfall. Rain falls for 16.7 days and accumulates 3.94" (100mm) of precipitation.

Snowfall

In Arundel Hills, snow does not fall in April through October.

Daylight

In Arundel Hills, the average length of the day in August is 13h and 40min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:38 pm EDT.

Sunshine

In August, the average sunshine in Arundel Hills 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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

How hot does it get in August?

In Arundel Hills, in August, the average high-temperature is 83.8°F (28.8°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 combines relative humidity and air temperature, is calculated to be 91.4°F (33°C).

What is the average humidity in August?

The average relative humidity in August is 73%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 16.7 days and accumulates 3.94" (100mm) of precipitation.

How many days does it rain in August?

In Arundel Hills, during August, the rain falls for 16.7 days and regularly aggregates up to 3.94" (100mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in August?

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

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:18 pm. On the last day of the month, in Arundel Hills, Maryland, sunrise is at 6:34 am and sunset at 7:38 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.4h.

When is 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 August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Arundel Hills, MD

Average temperature in August - Arundel Hills, MD
  • Average high temperature in August: 83.8°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 (38.8°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 (27.3°F).

Average pressure in August
Arundel Hills, MD

Average pressure in August - Arundel Hills, 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
Arundel Hills, MD

Average wind speed in August - Arundel Hills, MD
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Arundel Hills, MD

Average humidity in August - Arundel Hills, MD
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in August
Arundel Hills, MD

Average rainfall in August - Arundel Hills, MD
  • Average rainfall in August: 3.94"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (1.77").

Average rainfall days in August
Arundel Hills, MD

Average rainfall days in August - Arundel Hills, MD
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in August
Arundel Hills, MD

Average snowfall in August - Arundel Hills, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Arundel Hills, MD

Average snowfall days in August - Arundel Hills, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Arundel Hills, MD

Average daylight in August / Average sunshine in August - Arundel Hills, 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
Arundel Hills, MD

Average sunshine days in August - Arundel Hills, MD
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in August
Arundel Hills, MD

Average UV index in August - Arundel Hills, 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).

Average cloud cover in August
Arundel Hills, MD

Average cloud cover in August - Arundel Hills, MD
  • Average cloud cover in August: 30

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in August
Arundel Hills, MD

Average visibility in August - Arundel Hills, 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).

Arundel Hills, Maryland, USA

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