September weather forecast
South Gastonia, NC

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Weather in September

The first month of the autumn, September, is still a warm month in South Gastonia, North Carolina, with an average temperature fluctuating between 82.9°F (28.3°C) and 63.5°F (17.5°C).

Temperature

In South Gastonia, the average high-temperature in September slightly decreases from a hot 88.7°F (31.5°C) in August to a warm 82.9°F (28.3°C). The average low-temperature, in September, is a comfortable 63.5°F (17.5°C).

Heat index

The heat index in September is appraised at a hot 89.6°F (32°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Consider that heat index readings are for situations in the shade and light wind. 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 'feels like' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In South Gastonia, North Carolina, the average relative humidity in September is 73%.

Rainfall

In South Gastonia, North Carolina, during September, the rain falls for 12.5 days and regularly aggregates up to 2.17" (55mm) of precipitation. In South Gastonia, during the entire year, the rain falls for 164 days and collects up to 32.91" (836mm) of precipitation.

Snowfall

In South Gastonia, snow does not fall in April through October.

Daylight

The average length of the day in September in South Gastonia is 12h and 23min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:09 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September in South Gastonia is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

How hot is September in South Gastonia?

The high-temperature, in September, in South Gastonia, is 82.9°F (28.3°C), while the low-temperature averages to 63.5°F (17.5°C). 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 September is appraised at 89.6°F (32°C).

What is the average humidity in September in South Gastonia?

In South Gastonia, the average relative humidity in September is 73%.

How much does it rain in South Gastonia in September?

In September, in South Gastonia, the rain falls for 12.5 days. Throughout September, 2.17" (55mm) of precipitation is accumulated.

When it does not snow in South Gastonia?

April through October are months without snowfall in South Gastonia, North Carolina.

What is the average length of the day in September in South Gastonia?

The average day length in September in South Gastonia, North Carolina, is 12h and 23min.

What time are sunrise and sunset in September in South Gastonia?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of the month, in South Gastonia, North Carolina, sunrise is at 7:19 am and sunset at 7:09 pm EDT.

How many hours of sunshine does South Gastonia have in September?

In South Gastonia, North Carolina, the average sunshine duration in September is 8.7h.

How high is the UV index in September in South Gastonia?

In September, the average daily maximum UV index in South Gastonia, North Carolina, is 5. A UV Index of 3 to 5 symbolizes a medium 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
South Gastonia, NC

Average temperature in September - South Gastonia, NC
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 63.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in September
South Gastonia, NC

Average pressure in September - South Gastonia, NC
  • Average pressure in September: 30.04"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 September
South Gastonia, NC

Average wind speed in September - South Gastonia, NC
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
South Gastonia, NC

Average humidity in September - South Gastonia, NC
  • Average humidity in September: 73%

The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in September
South Gastonia, NC

Average rainfall in September - South Gastonia, NC
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is October (2.13").

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Average rainfall days in September
South Gastonia, NC

Average rainfall days in September - South Gastonia, NC
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in September
South Gastonia, NC

Average snowfall in September - South Gastonia, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
South Gastonia, NC

Average snowfall days in September - South Gastonia, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.1 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 September /
Average sunshine in September
South Gastonia, NC

Average daylight in September / Average sunshine in September - South Gastonia, NC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 4min

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 24min).

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Average sunshine days in September
South Gastonia, NC

Average sunshine days in September - South Gastonia, NC
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in September
South Gastonia, NC

Average UV index in September - South Gastonia, NC
  • Average UV index in September: 5

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 September
South Gastonia, NC

Average cloud cover in September - South Gastonia, NC
  • Average cloud cover in September: 33

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

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Average visibility in September
South Gastonia, NC

Average visibility in September - South Gastonia, NC
  • 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).

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South Gastonia, North Carolina, USA

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