September weather forecast
Aynor, SC

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Weather in September

September, the first month of the autumn in Aynor, is still a warm month, with an average temperature fluctuating between 69.1°F (20.6°C) and 83.1°F (28.4°C).

Temperature

Transitioning from August to September, Aynor observes an average high-temperature of a moderately hot 83.1°F (28.4°C), differing subtly from the previous month. Nighttime temperatures in September average to a pleasant 69.1°F (20.6°C).

Heat index

During September, the heat index is calculated to be a hot 91.4°F (33°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

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

Rainfall

In Aynor, in September, it is raining for 11.5 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, in Aynor, South Carolina, there are 127.8 rainfall days, and 12.99" (330mm) of precipitation is accumulated.

Snowfall

In Aynor, snow does not fall in January, March through December.

Daylight

In Aynor, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:02 pm EDT.

Sunshine

In September, the average sunshine in Aynor, South Carolina, is 9.5h.

UV index

In September, the average daily maximum UV index in Aynor is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during September leads to these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

How hot is it in Aynor in September?

In Aynor, 83.1°F (28.4°C) is the average high-temperature and 69.1°F (20.6°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is calculated to be 91.4°F (33°C).

What are the most humid months in Aynor?

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

What is the average humidity in September in Aynor?

In Aynor, the average relative humidity in September is 78%.

How many days does it rain in September in Aynor?

In Aynor, in September, during 11.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Aynor?

January, March through December are months without snowfall.

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

In September, the average day length in Aynor, South Carolina, is 12h and 22min.

What time are sunrise and sunset in September in Aynor?

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, sunrise is at 7:11 am and sunset at 7:02 pm EDT.

How many hours of sunshine does Aynor have in September?

The average sunshine duration in September is 9.5h.

What is the UV index reading in September in Aynor?

The average daily maximum UV index in September in Aynor, South Carolina, is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Aynor, SC

Average temperature in September - Aynor, SC
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 69.1°F

The month with the highest average low temperature is July (74.5°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

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Average pressure in September
Aynor, SC

Average pressure in September - Aynor, SC
  • Average pressure in September: 30"Hg

The months with the highest atmospheric pressure are January, November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Aynor, SC

Average wind speed in September - Aynor, SC
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in September
Aynor, SC

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

The months with the highest relative humidity are May, June, August, September and December (78%).
The month with the lowest relative humidity is January (74%).

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Average rainfall in September
Aynor, SC

Average rainfall in September - Aynor, SC
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in September
Aynor, SC

Average rainfall days in September - Aynor, SC
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in September
Aynor, SC

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

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Aynor, SC

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

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

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

Average daylight in September / Average sunshine in September - Aynor, 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 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in September
Aynor, SC

Average sunshine days in September - Aynor, SC
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is July (9.2 days).

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Average UV index in September
Aynor, SC

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

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

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Average cloud cover in September
Aynor, SC

Average cloud cover in September - Aynor, SC
  • Average cloud cover in September: 30

The months with the most cloud cover are February and December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 27).

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Average visibility in September
Aynor, SC

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

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