August weather forecast
Grayson, NC

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Weather in August

August, the last month of the summer in Grayson, is another warm month, with an average temperature varying between 57.4°F (14.1°C) and 79.5°F (26.4°C).

Temperature

Grayson's shift into August is marked by a subtle change to a still warm 79.5°F (26.4°C) from July's 80.6°F (27°C) in temperature. From significant daily highs, Grayson's nights in August cool down to an average low-temperature of 57.4°F (14.1°C).

Humidity

In August, the average relative humidity is 78%.

Rainfall

In Grayson, in August, during 17.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Grayson, during the entire year, the rain falls for 176.9 days and collects up to 31.61" (803mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Grayson, the average length of the day in August is 13h and 31min.
On the first day of August, sunrise is at 6:33 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:55 pm EDT.

Sunshine

In August, the average sunshine is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 5 during August, leads to the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

Grayson in August has an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 57.4°F (14.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 86°F (30°C).

What is the average humidity in August?

In Grayson, the average relative humidity in August is 78%.

How many days does it rain in August in Grayson?

In August, the rain falls for 17.3 days. Throughout August, 2.56" (65mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 31min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:33 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:55 pm EDT.

How many hours of sunshine does Grayson have in August?

In August, the average sunshine duration is 10h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium 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
Grayson, NC

Average temperature in August - Grayson, NC
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 57.4°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in August
Grayson, NC

Average pressure in August - Grayson, NC
  • 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
Grayson, NC

Average wind speed in August - Grayson, NC
  • Average wind speed in August: 4mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in August
Grayson, NC

Average humidity in August - Grayson, NC
  • Average humidity in August: 78%

The months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is November (76%).

Average rainfall in August
Grayson, NC

Average rainfall in August - Grayson, NC
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is February (3.31").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in August
Grayson, NC

Average rainfall days in August - Grayson, NC
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in August
Grayson, NC

Average snowfall in August - Grayson, NC
  • Average snowfall in August: 0"

The month with the highest snowfall is December (6.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Grayson, NC

Average snowfall days in August - Grayson, NC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Grayson, NC

Average daylight in August / Average sunshine in August - Grayson, NC
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in August
Grayson, NC

Average sunshine days in August - Grayson, NC
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is February (8.9 days).

Average UV index in August
Grayson, NC

Average UV index in August - Grayson, NC
  • Average UV index in August: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Grayson, NC

Average cloud cover in August - Grayson, NC
  • Average cloud cover in August: 37

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June, July and August (Cloud cover 37).

Average visibility in August
Grayson, NC

Average visibility in August - Grayson, NC
  • 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).

Grayson, North Carolina, USA

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