September weather forecast
Winston-Salem, NC

Lit skyscrapers and streets seen at dusk in Winston - Salem City, North Carolina
Lit skyscrapers and streets seen at dusk in Winston - Salem City, North Carolina

Weather in September

The first month of the autumn, September, is also a moderately hot month in Winston-Salem, North Carolina, with an average temperature fluctuating between 81°F (27.2°C) and 61.3°F (16.3°C).

Temperature

In September, the average high-temperature marginally drops from a hot 87.4°F (30.8°C) in August to a moderately hot 81°F (27.2°C). The average low-temperature, in September, is 61.3°F (16.3°C).

Heat index

In September, the average heat index is calculated to be 85.3°F (29.6°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, pregnancy, metabolic differences). 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Winston-Salem, during September, the rain falls for 13.3 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Winston-Salem, during the entire year, the rain falls for 159 days and collects up to 30.83" (783mm) of precipitation.

Snowfall

In Winston-Salem, snow does not fall in April through October.

Daylight

In Winston-Salem, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:52 am and sunset at 7:48 pm. On the last day of September, in Winston-Salem, sunrise is at 7:15 am and sunset at 7:06 pm EDT.

Sunshine

The average sunshine in September in Winston-Salem is 8.7h.

UV index

In Winston-Salem, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Winston-Salem?

In Winston-Salem, in September, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 61.3°F (16.3°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 85.3°F (29.6°C).

What is the average humidity in September in Winston-Salem?

In September, the average relative humidity in Winston-Salem is 74%.

How much does it rain in Winston-Salem in September?

In Winston-Salem, in September, during 13.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Winston-Salem?

April through October are months without snowfall.

How many hours of daylight does Winston-Salem have in September?

In September, the average day length in Winston-Salem is 12h and 24min.

When are sunrise and sunset in September in Winston-Salem?

On the first day of September, sunrise is at 6:52 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:06 pm EDT.

How many hours of sunshine does Winston-Salem have in September?

The average sunshine duration in September in Winston-Salem, North Carolina, is 8.7h.

What is the UV index reading in September in Winston-Salem?

In Winston-Salem, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.

Average temperature in September
Winston-Salem, NC

Average temperature in September - Winston-Salem, NC
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in September
Winston-Salem, NC

Average pressure in September - Winston-Salem, NC
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Winston-Salem, NC

Average wind speed in September - Winston-Salem, NC
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in September
Winston-Salem, NC

Average humidity in September - Winston-Salem, NC
  • Average humidity in September: 74%

The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
Winston-Salem, NC

Average rainfall in September - Winston-Salem, NC
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is October (2.05").

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Average rainfall days in September
Winston-Salem, NC

Average rainfall days in September - Winston-Salem, NC
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in September
Winston-Salem, NC

Average snowfall in September - Winston-Salem, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Winston-Salem, NC

Average snowfall days in September - Winston-Salem, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Winston-Salem, NC

Average daylight in September / Average sunshine in September - Winston-Salem, NC
  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 35min).
The month with the shortest days is December (Average daylight: 9h and 45min).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in September
Winston-Salem, NC

Average sunshine days in September - Winston-Salem, NC
  • Average sunshine days in September: 15 days

The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is July (11.1 days).

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Average UV index in September
Winston-Salem, NC

Average UV index in September - Winston-Salem, NC
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Winston-Salem, NC

Average cloud cover in September - Winston-Salem, NC
  • Average cloud cover in September: 35

The months with the most cloud cover are February and March (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
Winston-Salem, NC

Average visibility in September - Winston-Salem, NC
  • 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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