August weather forecast
Quantico, MD

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Weather in August

August, the last month of the summer in Quantico, is another warm month, with temperature in the range of an average low of 68°F (20°C) and an average high of 82.8°F (28.2°C).

Temperature

August registers an average high-temperature of a still warm 82.8°F (28.2°C), slightly varied from July's 84.4°F (29.1°C). Quantico records an average low-temperature of 68°F (20°C) throughout the month of August.

Heat index

August's mean heat index is evaluated at a tropical 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index details are generally centered around shaded locations and a mild breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The months with the highest humidity in Quantico are May, August and September, with an average relative humidity of 80%.

Rainfall

In Quantico, during August, the rain falls for 12.6 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 113.9 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:32 am and sunset at 7:33 pm EDT.

Sunshine

In Quantico, the average sunshine in August is 10.3h.

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 unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

How hot is it in August?

The average high-temperature and low-temperature during August are 82.8°F (28.2°C) and 68°F (20°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 91.4°F (33°C).

What are the most humid months?

The months with the highest humidity are May, August and September, with an average relative humidity of 80%.

What is the average humidity in August?

In Quantico, the average relative humidity in August is 80%.

How much does it rain in August?

In Quantico, during August, the rain falls for 12.6 days and regularly aggregates up to 1.42" (36mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August in Quantico?

In August, the average day length is 13h and 37min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:05 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:33 pm EDT.

How long on average sun shines in August in Quantico?

In August, the average sunshine duration is 10.3h.

When is the highest UV index?

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

What is the UV index reading in August?

In Quantico, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Quantico, MD

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

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in August: 68°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in August
Quantico, MD

Average pressure in August - Quantico, MD
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Quantico, MD

Average wind speed in August - Quantico, MD
  • Average wind speed in August: 6.1mph

The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in August
Quantico, MD

Average humidity in August - Quantico, MD
  • Average humidity in August: 80%

The months with the highest relative humidity are May, August and September (80%).
The months with the lowest relative humidity are January, February, March and April (75%).

Average rainfall in August
Quantico, MD

Average rainfall in August - Quantico, MD
  • Average rainfall in August: 1.42"

The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is September (0.71").

Average rainfall days in August
Quantico, MD

Average rainfall days in August - Quantico, MD
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in August
Quantico, MD

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

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Quantico, MD

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

The month with the highest number of snowfall days is January (3.2 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
Quantico, MD

Average daylight in August / Average sunshine in August - Quantico, MD
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in August
Quantico, MD

Average sunshine days in August - Quantico, MD
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (14.7 days).

Average UV index in August
Quantico, MD

Average UV index in August - Quantico, 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).

Average cloud cover in August
Quantico, MD

Average cloud cover in August - Quantico, MD
  • Average cloud cover in August: 29

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
Quantico, MD

Average visibility in August - Quantico, 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).

Quantico, Maryland, USA

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