August weather forecast
McCormick, SC

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Weather in August

The last month of the summer, August, is another tropical month in McCormick, South Carolina, with an average temperature varying between 90.5°F (32.5°C) and 70.3°F (21.3°C).

Temperature

The start of August sees the average high-temperature at a still tropical 90.5°F (32.5°C), showing little difference from July's 92.7°F (33.7°C). Throughout August, a steady low-temperature average of 70.3°F (21.3°C) is noted.

Heat index

The heat index in August is estimated at an extremely hot 107.6°F (42°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in August in McCormick, South Carolina, is 71%.

Rainfall

In McCormick, during August, the rain falls for 16.8 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, there are 147.3 rainfall days, and 29.21" (742mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in McCormick.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of August, sunrise is at 6:41 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:55 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

June and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In August, the maximum UV index of 7 transforms into these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot does it get in McCormick in August?

The high-temperature in McCormick during August is 90.5°F (32.5°C) and the low-temperature is 70.3°F (21.3°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 107.6°F (42°C).

What is the average humidity in August in McCormick?

The average relative humidity in August in McCormick, South Carolina, is 71%.

How much does it rain in McCormick in August?

In McCormick, South Carolina, in August, during 16.8 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow in McCormick?

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

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

The average day length in August in McCormick is 13h and 23min.

What time are sunrise and sunset in August in McCormick?

In August, on the first day of the month, sunrise is at 6:41 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:55 pm EDT.

How many hours of sunshine does McCormick have in August?

The average sunshine duration in August in McCormick, South Carolina, is 10.2h.

What is the month with the highest UV index in McCormick?

June and August, with an average maximum UV index of 7, are months with the highest UV index in McCormick.

What is the UV index reading in August in McCormick?

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

Average temperature in August - McCormick, SC
  • Average high temperature in August: 90.5°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in August: 70.3°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

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Average pressure in August
McCormick, SC

Average pressure in August - McCormick, 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
McCormick, SC

Average wind speed in August - McCormick, SC
  • Average wind speed in August: 4.7mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in August
McCormick, SC

Average humidity in August - McCormick, SC
  • Average humidity in August: 71%

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
McCormick, SC

Average rainfall in August - McCormick, SC
  • Average rainfall in August: 3.03"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in August
McCormick, SC

Average rainfall days in August - McCormick, SC
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in August
McCormick, SC

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

The month with the highest snowfall is February (0.67").
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
McCormick, SC

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

The month with the highest number of snowfall days is January (0.4 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
McCormick, SC

Average daylight in August / Average sunshine in August - McCormick, 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
McCormick, SC

Average sunshine days in August - McCormick, SC
  • Average sunshine days in August: 11 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in August
McCormick, SC

Average UV index in August - McCormick, 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
McCormick, SC

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

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in August
McCormick, SC

Average visibility in August - McCormick, SC
  • 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).

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McCormick, South Carolina, USA

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