August weather forecast
Carfax, VA

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Weather in August

August, the last month of the summer in Carfax, is also a moderately hot month, with an average temperature varying between 58.8°F (14.9°C) and 82.8°F (28.2°C).

Temperature

Carfax's weather in August indicates an average high-temperature of a still moderately hot 82.8°F (28.2°C), nearly consistent with the 83.5°F (28.6°C) of July. Nightly average temperatures in August reveal a significant dip from daytime highs, registering a consistent a mild 58.8°F (14.9°C).

Heat index

For most parts of August, the heat index is appraised at a hot 89.6°F (32°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Carfax, during August, the rain falls for 18.2 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Carfax, there are 197.7 rainfall days, and 36.69" (932mm) of precipitation is accumulated.

Snowfall

In Carfax, snow does not fall in May through September.

Daylight

In Carfax, the average length of the day in August is 13h and 32min.
On the first day of the month, sunrise is at 6:35 am and sunset at 8:36 pm. On the last day of August, in Carfax, sunrise is at 7:00 am and sunset at 7:58 pm EDT.

Sunshine

June and August, with an average of 10.1h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are June and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The average high-temperature and low-temperature in Carfax during August are 82.8°F (28.2°C) and 58.8°F (14.9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 89.6°F (32°C).

What is the average humidity in August?

In August, the average relative humidity is 77%.

How many days does it rain in August?

In Carfax, during August, the rain falls for 18.2 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In Carfax, the average day length in August is 13h and 32min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:35 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:58 pm EDT.

What are the months with the most sunshine?

June and August, with an average of 10.1h of sunshine, are months with the most sunshine.

How many hours of sunshine does Carfax have in August?

In Carfax, the average sunshine duration in August is 10.1h.

What are the months with the highest UV index?

June and August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August?

In Carfax, 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 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
Carfax, VA

Average temperature in August - Carfax, VA
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in August: 58.8°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in August
Carfax, VA

Average pressure in August - Carfax, VA
  • Average pressure in August: 30.03"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in August
Carfax, VA

Average wind speed in August - Carfax, VA
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in August
Carfax, VA

Average humidity in August - Carfax, VA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).

Average rainfall in August
Carfax, VA

Average rainfall in August - Carfax, VA
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is February (3.86").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in August
Carfax, VA

Average rainfall days in August - Carfax, VA
  • Average rainfall days in August: 18.2 days

The months with the highest number of rainy days are May and July (21.1 days).
The month with the least rainy days is November (11.6 days).

Average snowfall in August
Carfax, VA

Average snowfall in August - Carfax, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.08").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Carfax, VA

Average snowfall days in August - Carfax, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Carfax, VA

Average daylight in August / Average sunshine in August - Carfax, VA
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 1min

The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Carfax, VA

Average sunshine days in August - Carfax, VA
  • Average sunshine days in August: 10 days

The months with the most sunshine days are October and November (15 days).
The month with the least sunshine days is February (7.7 days).

Average UV index in August
Carfax, VA

Average UV index in August - Carfax, VA
  • Average UV index in August: 6

The months with the highest UV index are June 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
Carfax, VA

Average cloud cover in August - Carfax, VA
  • Average cloud cover in August: 35

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in August
Carfax, VA

Average visibility in August - Carfax, VA
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

Carfax, Virginia, USA

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