September weather forecast
Plum Branch, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Plum Branch, South Carolina, with temperature in the range of an average low of 65.3°F (18.5°C) and an average high of 85.3°F (29.6°C).

Temperature

September's average high-temperature is a warm 85.3°F (29.6°C), maintaining a close comparison with August's 90.5°F (32.5°C). September sees the temperature falling to a mean low of 65.3°F (18.5°C).

Heat index

The average heat index in September is estimated at a hot 93.2°F (34°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important 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.

Humidity

In Plum Branch, the average relative humidity in September is 71%.

Rainfall

The month with the least rainfall is September, when the rain falls for 10.6 days and typically collects 1.42" (36mm) of precipitation.

Snowfall

April through November are months without snowfall in Plum Branch, South Carolina.

Daylight

In Plum Branch, the average length of the day in September is 12h and 22min.
On the first day of September in Plum Branch, South Carolina, sunrise is at 7:03 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Plum Branch, South Carolina, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 5 in September translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot is it in Plum Branch in September?

The average high-temperature and low-temperature in Plum Branch during September are 85.3°F (29.6°C) and 65.3°F (18.5°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 93.2°F (34°C).

What is the average humidity in September in Plum Branch?

In Plum Branch, South Carolina, the average relative humidity in September is 71%.

What is the driest month in Plum Branch?

September is the month with the least rainfall in Plum Branch. Rain falls for 10.6 days and accumulates 1.42" (36mm) of precipitation.

How many days does it rain in September in Plum Branch?

In Plum Branch, in September, it is raining for 10.6 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow in Plum Branch?

April through November are months without snowfall.

What is the average length of the day in September in Plum Branch?

In Plum Branch, the average day length in September is 12h and 22min.

When are sunrise and sunset in September in Plum Branch?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm EDT.

How many hours of sunshine does Plum Branch have in September?

In September, the average sunshine duration in Plum Branch, South Carolina, is 8.6h.

What is the UV index intensity in September in Plum Branch?

In Plum Branch, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe 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
Plum Branch, SC

Average temperature in September - Plum Branch, SC
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

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Average pressure in September
Plum Branch, SC

Average pressure in September - Plum Branch, SC
  • Average pressure in September: 30.02"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
Plum Branch, SC

Average wind speed in September - Plum Branch, SC
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Plum Branch, SC

Average humidity in September - Plum Branch, SC
  • Average humidity in September: 71%

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 September
Plum Branch, SC

Average rainfall in September - Plum Branch, SC
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in September
Plum Branch, SC

Average rainfall days in September - Plum Branch, SC
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Plum Branch, SC

Average snowfall in September - Plum Branch, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.67").
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
Plum Branch, SC

Average snowfall days in September - Plum Branch, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 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
Plum Branch, SC

Average daylight in September / Average sunshine in September - Plum Branch, 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: 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 18min).

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Average sunshine days in September
Plum Branch, SC

Average sunshine days in September - Plum Branch, SC
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in September
Plum Branch, SC

Average UV index in September - Plum Branch, SC
  • Average UV index in September: 5

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

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Average cloud cover in September
Plum Branch, SC

Average cloud cover in September - Plum Branch, SC
  • Average cloud cover in September: 30

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Plum Branch, SC

Average visibility in September - Plum Branch, 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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Plum Branch, South Carolina, USA

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