July weather forecast
Charleston Heights, SC

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Weather in July

July, the same as June, in Charleston Heights, South Carolina, is another tropical summer month, with an average temperature ranging between min 76.5°F (24.7°C) and max 89.6°F (32°C).

Temperature

July registers as the month with the highest average temperatures, reaching 89.6°F (32°C) at its peak and 76.5°F (24.7°C) at the lowest.

Heat index

For most parts of July, the heat index is calculated to be 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.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The presence of direct sunlight can raise the 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 numerical representation of warmth when taking temperature and moisture levels into account. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In Charleston Heights, South Carolina, the average relative humidity in July is 74%.

Rainfall

In July, the rain falls for 21.2 days. Throughout July, 2.68" (68mm) of precipitation is accumulated. In Charleston Heights, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

In Charleston Heights, South Carolina, snow does not fall in March through November.

Daylight

The average length of the day in July in Charleston Heights is 14h and 4min.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:32 pm. On the last day of July, sunrise is at 6:33 am and sunset at 8:19 pm EDT.

Sunshine

July has the most sunshine of the year in Charleston Heights, with an average of 10.9h of sunshine.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 7 in July translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What part of the year is the hottest in Charleston Heights?

The warmest month is July, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 76.5°F (24.7°C).

How hot is it in Charleston Heights in July?

The average high-temperature and low-temperature in Charleston Heights, South Carolina, during July are 89.6°F (32°C) and 76.5°F (24.7°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 107.6°F (42°C).

What is the average humidity in July in Charleston Heights?

In July, the average relative humidity in Charleston Heights, South Carolina, is 74%.

How many days does it rain in July in Charleston Heights?

In Charleston Heights, South Carolina, during July, the rain falls for 21.2 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow in Charleston Heights?

March through November are months without snowfall.

What is the average length of the day in July in Charleston Heights?

In Charleston Heights, South Carolina, the average day length in July is 14h and 4min.

When is the sunrise / sunset in July in Charleston Heights?

In July, on the first day of the month, sunrise is at 6:15 am and sunset at 8:32 pm. On the last day of the month, in Charleston Heights, South Carolina, sunrise is at 6:33 am and sunset at 8:19 pm EDT.

What month has the most sunshine in Charleston Heights?

The month with the most sunshine in Charleston Heights, South Carolina, is July, with an average of 10.9h of sunshine.

How many hours of sunshine does Charleston Heights have in July?

In July, the average sunshine duration in Charleston Heights, South Carolina, is 10.9h.

When is the highest UV index in Charleston Heights?

May through August, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in July in Charleston Heights?

The average daily maximum UV index in July in Charleston Heights is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Charleston Heights, SC

Average temperature in July - Charleston Heights, SC
  • Average high temperature in July: 89.6°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in July: 76.5°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

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Average pressure in July
Charleston Heights, SC

Average pressure in July - Charleston Heights, SC
  • Average pressure in July: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in July
Charleston Heights, SC

Average wind speed in July - Charleston Heights, SC
  • Average wind speed in July: 7mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in July
Charleston Heights, SC

Average humidity in July - Charleston Heights, SC
  • Average humidity in July: 74%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in July
Charleston Heights, SC

Average rainfall in July - Charleston Heights, SC
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in July
Charleston Heights, SC

Average rainfall days in July - Charleston Heights, SC
  • Average rainfall days in July: 21.2 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall days in July
Charleston Heights, SC

Average snowfall days in July - Charleston Heights, SC
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in July /
Average sunshine in July
Charleston Heights, SC

Average daylight in July / Average sunshine in July - Charleston Heights, SC
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 10h and 5min

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 36min).

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Average sunshine days in July
Charleston Heights, SC

Average sunshine days in July - Charleston Heights, SC
  • Average sunshine days in July: 6.9 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

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Average UV index in July
Charleston Heights, SC

Average UV index in July - Charleston Heights, SC
  • Average UV index in July: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in July
Charleston Heights, SC

Average cloud cover in July - Charleston Heights, SC
  • Average cloud cover in July: 26

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in July
Charleston Heights, SC

Average visibility in July - Charleston Heights, SC
  • Average visibility in July: 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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Charleston Heights, South Carolina, USA

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