September weather forecast
Mullins, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Mullins, South Carolina, with an average temperature fluctuating between 83.3°F (28.5°C) and 66.4°F (19.1°C).

Temperature

The advent of September brings an average high-temperature of a warm 83.3°F (28.5°C), almost identical to the preceding month. Mullins experiences a mean low-temperature of 66.4°F (19.1°C) during September.

Heat index

The heat index value for September is calculated to be a hot 91.4°F (33°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The months with the highest humidity are May, June, August and September, with an average relative humidity of 78%.

Rainfall

In September, the rain falls for 15.2 days. Throughout September, 3.03" (77mm) of precipitation is accumulated. In Mullins, during the entire year, the rain falls for 167.8 days and collects up to 32.68" (830mm) of precipitation.

Snowfall

In Mullins, snow does not fall in April through November.

Daylight

The average length of the day in September in Mullins is 12h and 23min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:42 pm. On the last day of September, in Mullins, sunrise is at 7:11 am and sunset at 7:02 pm EDT.

Sunshine

The average sunshine in September in Mullins is 9.3h.

UV index

The average daily maximum UV index in September in Mullins is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

How hot does it get in Mullins in September?

Mullins in September has an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 66.4°F (19.1°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 91.4°F (33°C).

What are the most humid months in Mullins?

May, June, August and September, with an average relative humidity of 78%, are most humid months in Mullins.

What is the average humidity in September in Mullins?

In Mullins, South Carolina, the average relative humidity in September is 78%.

How many days does it rain in September in Mullins?

In Mullins, South Carolina, in September, during 15.2 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow in Mullins?

In Mullins, South Carolina, snow does not fall in April through November.

How many hours of daylight does Mullins have in September?

In Mullins, South Carolina, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Mullins?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:42 pm. On the last day of the month, in Mullins, South Carolina, sunrise is at 7:11 am and sunset at 7:02 pm EDT.

How long on average sun shines in September in Mullins?

The average sunshine duration in September in Mullins is 9.3h.

What is the UV index reading in September in Mullins?

In Mullins, South Carolina, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
Mullins, SC

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

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in September: 66.4°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

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Average pressure in September
Mullins, SC

Average pressure in September - Mullins, SC
  • Average pressure in September: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in September
Mullins, SC

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

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Mullins, SC

Average humidity in September - Mullins, SC
  • Average humidity in September: 78%

The months with the highest relative humidity are May, June, August and September (78%).
The month with the lowest relative humidity is January (73%).

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Average rainfall in September
Mullins, SC

Average rainfall in September - Mullins, SC
  • Average rainfall in September: 3.03"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days in September
Mullins, SC

Average rainfall days in September - Mullins, SC
  • Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is October (8.5 days).

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Average snowfall in September
Mullins, SC

Average snowfall in September - Mullins, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Mullins, SC

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

The months with the highest number of snowfall days are January and February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

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

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 September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Mullins, SC

Average sunshine days in September - Mullins, SC
  • Average sunshine days in September: 12.7 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (8.2 days).

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Average UV index in September
Mullins, SC

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

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in September
Mullins, SC

Average cloud cover in September - Mullins, SC
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in September
Mullins, SC

Average visibility in September - Mullins, 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).

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Mullins, South Carolina, USA

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