September weather forecast
Thompson Corner, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Thompson Corner, South Carolina, with an average temperature fluctuating between 69.8°F (21°C) and 84.2°F (29°C).

Temperature

The advent of September sees the average high-temperature at a warm 84.2°F (29°C), subtly shifted from August's 88.7°F (31.5°C). September witnesses an average nighttime temperature of 69.8°F (21°C) in Thompson Corner.

Heat index

Throughout September, the heat index is estimated at a hot 93.2°F (34°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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.

Humidity

In Thompson Corner, the average relative humidity in September is 77%.

Rainfall

In Thompson Corner, South Carolina, in September, during 17.5 rainfall days, 4.13" (105mm) of precipitation is typically accumulated. Throughout the year, in Thompson Corner, there are 179.5 rainfall days, and 40.79" (1036mm) of precipitation is accumulated.

Snowfall

In Thompson Corner, snow does not fall in March through November.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:43 pm. On the last day of September, in Thompson Corner, sunrise is at 7:12 am and sunset at 7:03 pm EDT.

Sunshine

In Thompson Corner, the average sunshine in September is 9.1h.

UV index

The average daily maximum UV index in September in Thompson Corner is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Thompson Corner in September?

The average high-temperature, in September, in Thompson Corner, is 84.2°F (29°C), while the average low-temperature is 69.8°F (21°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 93.2°F (34°C).

What is the average humidity in September in Thompson Corner?

The average relative humidity in September in Thompson Corner is 77%.

How many days does it rain in September in Thompson Corner?

In September, in Thompson Corner, South Carolina, the rain falls for 17.5 days. Throughout September, 4.13" (105mm) of precipitation is accumulated.

When it does not snow in Thompson Corner?

March through November are months without snowfall.

How many hours of daylight does Thompson Corner have in September?

In September, the average day length in Thompson Corner, South Carolina, is 12h and 22min.

What time are sunrise and sunset in September in Thompson Corner?

On the first day of September, sunrise is at 6:53 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:03 pm EDT.

How many hours of sunshine does Thompson Corner have in September?

In Thompson Corner, the average sunshine duration in September is 9.1h.

What is the UV index intensity in September in Thompson Corner?

In Thompson Corner, South Carolina, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk 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 September
Thompson Corner, SC

Average temperature in September - Thompson Corner, SC
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in September: 69.8°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

Average pressure in September
Thompson Corner, SC

Average pressure in September - Thompson Corner, SC
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Thompson Corner, SC

Average wind speed in September - Thompson Corner, SC
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Thompson Corner, SC

Average humidity in September - Thompson Corner, SC
  • Average humidity in September: 77%

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).

Average rainfall in September
Thompson Corner, SC

Average rainfall in September - Thompson Corner, SC
  • Average rainfall in September: 4.13"

The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Thompson Corner, SC

Average rainfall days in September - Thompson Corner, SC
  • Average rainfall days in September: 17.5 days

The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September
Thompson Corner, SC

Average snowfall in September - Thompson Corner, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Thompson Corner, SC

Average snowfall days in September - Thompson Corner, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Thompson Corner, SC

Average daylight in September / Average sunshine in September - Thompson Corner, SC
  • Average daylight in September: 12h and 2min

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 September: 9h 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 42min).

Average sunshine days in September
Thompson Corner, SC

Average sunshine days in September - Thompson Corner, SC
  • Average sunshine days in September: 10 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).

Average UV index in September
Thompson Corner, SC

Average UV index in September - Thompson Corner, SC
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Thompson Corner, SC

Average cloud cover in September - Thompson Corner, SC
  • Average cloud cover in September: 29

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

Average visibility in September
Thompson Corner, SC

Average visibility in September - Thompson Corner, SC
  • Average visibility in September: 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).

Thompson Corner, South Carolina, USA

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