September weather forecast
Lexington, SC

Weather in September

September, the first month of the autumn in Lexington, is still a warm month, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 67.1°F (19.5°C).

Temperature

In Lexington, the average high-temperature in September marginally drops from a tropical 89.8°F (32.1°C) in August to a warm 84.2°F (29°C). In September, the average low-temperature is 67.1°F (19.5°C).

Heat index

The average heat index in September is estimated at a tropical 91.4°F (33°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, differences in body mass, height, and shape, pregnancy, and metabolic differences affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Lexington, South Carolina, the average relative humidity in September is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

April through November are months without snowfall in Lexington.

Daylight

The average length of the day in September in Lexington, South Carolina, is 12h and 22min.
On the first day of the month, sunrise is at 6:58 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

Sunshine

In Lexington, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in Lexington is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Lexington?

In September, in Lexington, South Carolina, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 67.1°F (19.5°C). in September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

What is the average humidity in September in Lexington?

In Lexington, South Carolina, the average relative humidity in September is 72%.

What is the driest month in Lexington?

The month with the least rainfall in Lexington, South Carolina, is September, when the rain falls for 12.2 days and typically collects 1.5" (38mm) of precipitation.

How many days does it rain in September in Lexington?

In Lexington, in September, it is raining for 12.2 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow in Lexington?

April through November are months without snowfall.

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

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

When is the sunrise / sunset in September in Lexington?

On the first day of September in Lexington, sunrise is at 6:58 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

How many hours of sunshine does Lexington have in September?

The average sunshine duration in September in Lexington is 8.6h.

What is the UV index reading in September in Lexington?

In Lexington, South Carolina, the average daily maximum UV index in September is 6. A UV Index estimate 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lexington, SC

Average temperature in September - Lexington, SC
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (52.7°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

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Average pressure in September
Lexington, SC

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

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Lexington, SC

Average wind speed in September - Lexington, SC
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
Lexington, SC

Average humidity in September - Lexington, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in September
Lexington, SC

Average rainfall in September - Lexington, SC
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in September
Lexington, SC

Average rainfall days in September - Lexington, SC
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (7.5 days).

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Average snowfall in September
Lexington, SC

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

The month with the highest snowfall is February (0.47").
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
Lexington, SC

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

The month with the highest number of snowfall days is January (0.5 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
Lexington, SC

Average daylight in September / Average sunshine in September - Lexington, SC
  • Average daylight in September: 12h and 22min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in September: 8h and 36min

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 24min).

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Average sunshine days in September
Lexington, SC

Average sunshine days in September - Lexington, SC
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in September
Lexington, SC

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

The months with the highest UV index are June, July 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
Lexington, SC

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

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

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Average visibility in September
Lexington, SC

Average visibility in September - Lexington, 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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