September weather forecast
Snelling, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Snelling, South Carolina, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 68°F (20°C).

Temperature

September's onset sees an average high-temperature of a warm 84.4°F (29.1°C), exhibiting a slight fluctuation from the previous month. Snelling's nights in September cool down to an average low-temperature of 68°F (20°C).

Heat index

During September, the heat index is estimated at a hot 93.2°F (34°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The average relative humidity in September is 75%.

Rainfall

In September, in Snelling, South Carolina, the rain falls for 12.8 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Snelling, there are 155.3 rainfall days, and 29.37" (746mm) of precipitation is accumulated.

Snowfall

In Snelling, snow does not fall in March through November.

Daylight

In September, the average length of the day in Snelling is 12h and 22min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:50 pm. On the last day of September, in Snelling, sunrise is at 7:19 am and sunset at 7:11 pm EDT.

Sunshine

In September, the average sunshine in Snelling, South Carolina, is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

How hot is September in Snelling?

Snelling in September has an average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 68°F (20°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is estimated at 93.2°F (34°C).

What is the average humidity in September in Snelling?

The average relative humidity in September is 75%.

How much does it rain in Snelling in September?

In September, the rain falls for 12.8 days. Throughout September, 1.65" (42mm) of precipitation is accumulated.

When it does not snow in Snelling?

March through November are months without snowfall.

What is the average length of the day in September in Snelling?

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

When is the sunrise / sunset in September in Snelling?

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 7:50 pm. On the last day of the month, in Snelling, sunrise is at 7:19 am and sunset at 7:11 pm EDT.

How many hours of sunshine does Snelling have in September?

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

What is the UV index reading in September in Snelling?

In Snelling, South Carolina, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Snelling, SC

Average temperature in September - Snelling, SC
  • Average high temperature in September: 84.4°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (54.3°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).

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Average pressure in September
Snelling, SC

Average pressure in September - Snelling, 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 (29.97"Hg).

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Average wind speed in September
Snelling, SC

Average wind speed in September - Snelling, SC
  • Average wind speed in September: 6.2mph

The windiest months (with the highest average wind speed) are March and April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in September
Snelling, SC

Average humidity in September - Snelling, SC
  • Average humidity in September: 75%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is January (70%).

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Average rainfall in September
Snelling, SC

Average rainfall in September - Snelling, SC
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days in September
Snelling, SC

Average rainfall days in September - Snelling, SC
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in September
Snelling, SC

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

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Snelling, SC

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

The months with the highest number of snowfall days are January and February (0.3 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
Snelling, SC

Average daylight in September / Average sunshine in September - Snelling, 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: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Snelling, SC

Average sunshine days in September - Snelling, SC
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (9 days).

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Average UV index in September
Snelling, SC

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Snelling, SC

Average cloud cover in September - Snelling, SC
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Snelling, SC

Average visibility in September - Snelling, 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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Snelling, South Carolina, USA

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