September weather forecast
Scanlonville, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Scanlonville, South Carolina, with an average temperature ranging between max 83.3°F (28.5°C) and min 73.6°F (23.1°C).

Temperature

September's onset records a minor alteration in the average high-temperature to a moderately hot 83.3°F (28.5°C) from August's 86.7°F (30.4°C). An average temperature of 73.6°F (23.1°C) is recorded during the nights in September.

Heat index

The heat index value during September is computed to be a tropical 91.4°F (33°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In Scanlonville, the average relative humidity in September is 76%.

Rainfall

In Scanlonville, during September, the rain falls for 19.4 days and regularly aggregates up to 5.47" (139mm) of precipitation. In Scanlonville, during the entire year, the rain falls for 182.9 days and collects up to 44.69" (1135mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In September, the average length of the day in Scanlonville, South Carolina, is 12h and 22min.
On the first day of September, sunrise is at 6:54 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:05 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In Scanlonville, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

An average high-temperature, in September, in Scanlonville, is 83.3°F (28.5°C) and the average low-temperature is 73.6°F (23.1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is computed to be 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

How many days does it rain in September?

In Scanlonville, during September, the rain falls for 19.4 days and regularly aggregates up to 5.47" (139mm) of precipitation.

When it does not snow?

In Scanlonville, snow does not fall in March through December.

How many hours of daylight does Scanlonville have in September?

The average day length in September is 12h and 22min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:54 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:05 pm EDT.

How many hours of sunshine does Scanlonville have in September?

The average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
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 September
Scanlonville, SC

Average temperature in September - Scanlonville, SC
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in September: 73.6°F

The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

Average pressure in September
Scanlonville, SC

Average pressure in September - Scanlonville, 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 (29.98"Hg).

Average wind speed in September
Scanlonville, SC

Average wind speed in September - Scanlonville, SC
  • Average wind speed in September: 8.6mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

Average humidity in September
Scanlonville, SC

Average humidity in September - Scanlonville, SC
  • Average humidity in September: 76%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).

Average rainfall in September
Scanlonville, SC

Average rainfall in September - Scanlonville, SC
  • Average rainfall in September: 5.47"

The wettest month (with the highest rainfall) is August (8.03").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days in September
Scanlonville, SC

Average rainfall days in September - Scanlonville, SC
  • Average rainfall days in September: 19.4 days

The month with the highest number of rainy days is August (25.8 days).
The month with the least rainy days is November (8.6 days).

Average snowfall days in September
Scanlonville, SC

Average snowfall days in September - Scanlonville, SC
  • Average snowfall days in September: 0 days

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

Average daylight in September /
Average sunshine in September
Scanlonville, SC

Average daylight in September / Average sunshine in September - Scanlonville, 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 months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Scanlonville, SC

Average sunshine days in September - Scanlonville, SC
  • Average sunshine days in September: 8.1 days

The months with the most sunshine days are January and November (19.3 days).
The month with the least sunshine days is August (3 days).

Average UV index in September
Scanlonville, SC

Average UV index in September - Scanlonville, SC
  • Average UV index in September: 6

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).

Average cloud cover in September
Scanlonville, SC

Average cloud cover in September - Scanlonville, SC
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in September
Scanlonville, SC

Average visibility in September - Scanlonville, 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).

Scanlonville, South Carolina, USA

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