July weather forecast
Clemson, SC

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Weather in July

July comes packed with the thick of summer, extending the high temperatures from June, with temperatures reaching 89.6°F (32°C). The summer heat, however, does not preclude the city of Clemson from being lively and vibrant. Annual celebrations, concerts, and fireworks during Independence Day typify the festive mood in the city. Despite the numerous sunny days, summer showers can be expected, although not as plentiful as in other months.

Temperature

In Clemson, the month of July registers the highest temperatures, averaging 89.6°F (32°C) at the peak and 68°F (20°C) at the lowest.

Heat index

During July, the heat index is calculated to be a blistering 104°F (40°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

With an average relative humidity of 70%, July is the least humid month.

Rainfall

In July, the rain falls for 17.8 days. Throughout July, 2.6" (66mm) of precipitation is accumulated. In Clemson, during the entire year, the rain falls for 164.1 days and collects up to 37.09" (942mm) of precipitation.

Snowfall

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

Daylight

In July, the average length of the day is 14h and 13min.
On the first day of July in Clemson, sunrise is at 6:22 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:34 pm EDT.

Sunshine

The month with the most sunshine in Clemson is July, with an average of 11.1h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Clemson. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 6 in July leads to these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What is the warmest month in Clemson?

July stands out as Clemson's warmest month, with an average high-temperature of 89.6°F (32°C) and a low-temperature of 68°F (20°C).

How hot does it get in Clemson in July?

The high-temperature, in July, in Clemson, is 89.6°F (32°C), while the low-temperature averages to 68°F (20°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 104°F (40°C).

What is the least humid month in Clemson?

The least humid month in Clemson, South Carolina, is July, with an average relative humidity of 70%.

What is the average humidity in July in Clemson?

In July, the average relative humidity in Clemson is 70%.

How much does it rain in Clemson in July?

In Clemson, in July, it is raining for 17.8 days, with typically 2.6" (66mm) of accumulated precipitation.

When it does not snow in Clemson?

April through October are months without snowfall in Clemson.

What is the average length of the day in July in Clemson?

In Clemson, South Carolina, the average day length in July is 14h and 13min.

What time are sunrise and sunset in July in Clemson?

On the first day of July in Clemson, South Carolina, sunrise is at 6:22 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:34 pm EDT.

What month has the most sunshine in Clemson?

With an average of 11.1h of sunshine, July has the most sunshine of the year in Clemson.

How long on average sun shines in July in Clemson?

In Clemson, South Carolina, the average sunshine duration in July is 11.1h.

When is the highest UV index in Clemson?

The months with the highest UV index in Clemson, South Carolina, are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Clemson?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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 July
Clemson, SC

Average temperature in July - Clemson, 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 (49.6°F).

  • Average low temperature in July: 68°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in July
Clemson, SC

Average pressure in July - Clemson, SC
  • Average pressure in July: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in July
Clemson, SC

Average wind speed in July - Clemson, SC
  • Average wind speed in July: 4.4mph

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in July
Clemson, SC

Average humidity in July - Clemson, SC
  • Average humidity in July: 70%

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 July
Clemson, SC

Average rainfall in July - Clemson, SC
  • Average rainfall in July: 2.6"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in July
Clemson, SC

Average rainfall days in July - Clemson, SC
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (9.5 days).

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Average snowfall in July
Clemson, SC

Average snowfall in July - Clemson, SC
  • Average snowfall in July: 0"

The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Clemson, SC

Average snowfall days in July - Clemson, SC
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Clemson, SC

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

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 July: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in July
Clemson, SC

Average sunshine days in July - Clemson, SC
  • Average sunshine days in July: 10.5 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.5 days).

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Average UV index in July
Clemson, SC

Average UV index in July - Clemson, SC
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in July
Clemson, SC

Average cloud cover in July - Clemson, SC
  • Average cloud cover in July: 27

The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).

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Average visibility in July
Clemson, SC

Average visibility in July - Clemson, 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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Clemson, South Carolina, USA

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