August weather forecast
Cary, NC

Share

Weather in August

As summer proceeds to its last stages, August displays marginally lower temperatures than July in Cary. Those who are heat intolerant may find relief in August's increased rainfall amounting to 2.99" (76mm). Beach visits are common due to the warm temperatures and extended daylight hours. While summer storms may occur, they are usually followed by picturesque sunsets. The beautiful, warm weather combined with summer holiday vibes makes August a favorable time for different outdoor activities.

Temperature

Cary records an average high-temperature of a still tropical 87.4°F (30.8°C) as August arrives, nearly mirroring the previous month's climate. During August, Cary records a consistent average nighttime temperature of 69.6°F (20.9°C).

Heat index

The heat index in August is calculated to be a fiery hot 100.4°F (38°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in August in Cary is 73%.

Rainfall

In Cary, in August, it is raining for 16.8 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 161.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

In Cary, snow does not fall in April through October.

Daylight

The average length of the day in August in Cary is 13h and 28min.
On the first day of August in Cary, sunrise is at 6:23 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:43 pm EDT.

Sunshine

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

UV index

In Cary, North Carolina, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during August leads to these advisories:
Deflect overexposure. Sun protection is a necessity. 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. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
[Resources]

Frequently asked questions

How hot does it get in Cary in August?

Cary in August has an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 69.6°F (20.9°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 100.4°F (38°C).

What is the average humidity in August in Cary?

In Cary, the average relative humidity in August is 73%.

How much does it rain in Cary in August?

In Cary, during August, the rain falls for 16.8 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow in Cary?

In Cary, snow does not fall in April through October.

How many hours of daylight does Cary have in August?

The average day length in August in Cary, North Carolina, is 13h and 28min.

When is the sunrise / sunset in August in Cary?

On the first day of August in Cary, North Carolina, sunrise is at 6:23 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:43 pm EDT.

How long on average sun shines in August in Cary?

In Cary, the average sunshine duration in August is 10.3h.

How high is the UV index in August in Cary?

In Cary, North Carolina, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Cary, NC

Average temperature in August - Cary, NC
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in August: 69.6°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

[Resources]

Average pressure in August
Cary, NC

Average pressure in August - Cary, NC
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

[Resources]

Average wind speed in August
Cary, NC

Average wind speed in August - Cary, NC
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

[Resources]

Average humidity in August
Cary, NC

Average humidity in August - Cary, NC
  • Average humidity in August: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (71%).

[Resources]

Average rainfall in August
Cary, NC

Average rainfall in August - Cary, NC
  • Average rainfall in August: 2.99"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is October (2.17").

[Resources]

Average rainfall days in August
Cary, NC

Average rainfall days in August - Cary, NC
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.1 days).

[Resources]

Average snowfall in August
Cary, NC

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

The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in August
Cary, NC

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

[Resources]

Average sunshine days in August
Cary, NC

Average sunshine days in August - Cary, NC
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

[Resources]

Average UV index in August
Cary, NC

Average UV index in August - Cary, NC
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

[Resources]

Average cloud cover in August
Cary, NC

Average cloud cover in August - Cary, NC
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

[Resources]

Average visibility in August
Cary, NC

Average visibility in August - Cary, NC
  • 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).

[Resources]

Cary, North Carolina, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location