September weather forecast
Glenn Springs, SC

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Weather in September

September, the first month of the autumn in Glenn Springs, is still a warm month, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 83.8°F (28.8°C).

Temperature

The commencement of September indicates a gentle shift in the average high-temperature, receding from August's hot 89.4°F (31.9°C) to a moderately hot 83.8°F (28.8°C). In Glenn Springs, the average low-temperature during the month of September is a refreshing 63.5°F (17.5°C).

Heat index

Throughout September, the heat index is evaluated at a tropical 91.4°F (33°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

The average relative humidity in September is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.54" (39mm) of precipitation.

Snowfall

April through November are months without snowfall in Glenn Springs.

Daylight

In Glenn Springs, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:00 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:12 pm EDT.

Sunshine

In Glenn Springs, South Carolina, the average sunshine in September is 8.5h.

UV index

In Glenn Springs, South Carolina, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 5 in September translates into these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

Is it hot in Glenn Springs during September?

The average high-temperature and low-temperature during September are 83.8°F (28.8°C) and 63.5°F (17.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is evaluated at 91.4°F (33°C).

What is the average humidity in September in Glenn Springs?

In Glenn Springs, the average relative humidity in September is 72%.

What is the driest month in Glenn Springs?

September is the month with the least rainfall in Glenn Springs. Rain falls for 11.5 days and accumulates 1.54" (39mm) of precipitation.

How many days does it rain in September in Glenn Springs?

In Glenn Springs, in September, it is raining for 11.5 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow in Glenn Springs?

April through November are months without snowfall in Glenn Springs, South Carolina.

How many hours of daylight does Glenn Springs have in September?

In Glenn Springs, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September in Glenn Springs?

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 7:53 pm. On the last day of the month, in Glenn Springs, South Carolina, sunrise is at 7:21 am and sunset at 7:12 pm EDT.

How many hours of sunshine does Glenn Springs have in September?

In September, the average sunshine duration in Glenn Springs, South Carolina, is 8.5h.

What is the UV index reading in September in Glenn Springs?

The average daily maximum UV index in September in Glenn Springs is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
Glenn Springs, SC

Average temperature in September - Glenn Springs, SC
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (49.6°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 (33.4°F).

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Average pressure in September
Glenn Springs, SC

Average pressure in September - Glenn Springs, SC
  • Average pressure in September: 30.03"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
Glenn Springs, SC

Average wind speed in September - Glenn Springs, SC
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in September
Glenn Springs, SC

Average humidity in September - Glenn Springs, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in September
Glenn Springs, SC

Average rainfall in September - Glenn Springs, SC
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in September
Glenn Springs, SC

Average rainfall days in September - Glenn Springs, SC
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in September
Glenn Springs, SC

Average snowfall in September - Glenn Springs, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.97").
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
Glenn Springs, SC

Average snowfall days in September - Glenn Springs, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.6 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
Glenn Springs, SC

Average daylight in September / Average sunshine in September - Glenn Springs, SC
  • 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 54min).

  • Average sunshine in September: 8h and 3min

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
Glenn Springs, SC

Average sunshine days in September - Glenn Springs, SC
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Glenn Springs, SC

Average UV index in September - Glenn Springs, SC
  • Average UV index in September: 5

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

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Average cloud cover in September
Glenn Springs, SC

Average cloud cover in September - Glenn Springs, SC
  • Average cloud cover in September: 32

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
Glenn Springs, SC

Average visibility in September - Glenn Springs, 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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Glenn Springs, South Carolina, USA

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