August weather forecast
Iris, SC

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Weather in August

The last month of the summer, August, is also a hot month in Iris, South Carolina, with an average temperature ranging between max 90.1°F (32.3°C) and min 69.8°F (21°C).

Temperature

Shifting into August, Iris records an average high-temperature of a still hot 90.1°F (32.3°C), presenting minor fluctuations compared to the previous month. The average temperature drops to a pleasant 69.8°F (21°C) during the night in the month of August.

Heat index

In August, the average heat index is evaluated at a blisteringly hot 107.6°F (42°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In August, the average relative humidity is 72%.

Rainfall

In Iris, in August, during 17 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. Throughout the year, there are 160.1 rainfall days, and 33.94" (862mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Iris.

Daylight

In August, the average length of the day is 13h and 24min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:30 pm. On the last day of August, sunrise is at 7:02 am and sunset at 7:56 pm EDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

The months with the highest UV index are June and August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

How hot does it get in Iris in August?

In August, the average high-temperature and low-temperature are 90.1°F (32.3°C) and 69.8°F (21°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 107.6°F (42°C).

What is the average humidity in August in Iris?

The average relative humidity in August in Iris, South Carolina, is 72%.

How much does it rain in Iris in August?

In Iris, South Carolina, in August, it is raining for 17 days, with typically 3.54" (90mm) of accumulated precipitation.

When it does not snow in Iris?

In Iris, snow does not fall in April through November.

How many hours of daylight does Iris have in August?

In Iris, South Carolina, the average day length in August is 13h and 24min.

What time are sunrise and sunset in August in Iris?

On the first day of August, sunrise is at 6:41 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:56 pm EDT.

How many hours of sunshine does Iris have in August?

In August, the average sunshine duration in Iris is 10.2h.

When is the highest UV index in Iris?

The months with the highest UV index in Iris, South Carolina, are June and August, with an average maximum UV index of 7.

How high is the UV index in August in Iris?

The average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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
Iris, SC

Average temperature in August - Iris, SC
  • Average high temperature in August: 90.1°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (51.6°F).

  • Average low temperature in August: 69.8°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in August
Iris, SC

Average pressure in August - Iris, SC
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in August
Iris, SC

Average wind speed in August - Iris, SC
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in August
Iris, SC

Average humidity in August - Iris, SC
  • Average humidity in August: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in August
Iris, SC

Average rainfall in August - Iris, SC
  • Average rainfall in August: 3.54"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in August
Iris, SC

Average rainfall days in August - Iris, SC
  • Average rainfall days in August: 17 days

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

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Average snowfall in August
Iris, SC

Average snowfall in August - Iris, SC
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Iris, SC

Average snowfall days in August - Iris, SC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in August /
Average sunshine in August
Iris, SC

Average daylight in August / Average sunshine in August - Iris, SC
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in August
Iris, SC

Average sunshine days in August - Iris, SC
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in August
Iris, SC

Average UV index in August - Iris, SC
  • Average UV index in August: 7

The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in August
Iris, SC

Average cloud cover in August - Iris, SC
  • Average cloud cover in August: 32

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).

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Average visibility in August
Iris, SC

Average visibility in August - Iris, SC
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Iris, South Carolina, USA

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