September weather forecast
Windsor Heights, SC

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Weather in September

September, the first month of the autumn in Windsor Heights, is also a moderately hot month, with an average temperature varying between 66.2°F (19°C) and 83.3°F (28.5°C).

Temperature

Windsor Heights greets September with an average high-temperature of a moderately hot 83.3°F (28.5°C), marking a slight deviation from the preceding month. Throughout September, an average low-temperature of 66.2°F (19°C) is experienced.

Heat index

In September, the heat index is evaluated at a hot 89.6°F (32°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical 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

In Windsor Heights, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall in Windsor Heights is September, when the rain falls for 9.5 days and typically collects 0.59" (15mm) of precipitation.

Snowfall

March through December are months without snowfall in Windsor Heights.

Daylight

In Windsor Heights, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:56 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:07 pm EDT.

Sunshine

In Windsor Heights, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. 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 Windsor Heights?

The average high-temperature, in September, in Windsor Heights, is 83.3°F (28.5°C), while the average low-temperature is 66.2°F (19°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is evaluated at 89.6°F (32°C).

What is the average humidity in September in Windsor Heights?

In Windsor Heights, the average relative humidity in September is 74%.

What is the driest month in Windsor Heights?

September is the month with the least rainfall in Windsor Heights, South Carolina. Rain falls for 9.5 days and accumulates 0.59" (15mm) of precipitation.

How much does it rain in Windsor Heights in September?

In Windsor Heights, South Carolina, in September, it is raining for 9.5 days, with typically 0.59" (15mm) of accumulated precipitation.

When it does not snow in Windsor Heights?

In Windsor Heights, South Carolina, snow does not fall in March through December.

What is the average length of the day in September in Windsor Heights?

In Windsor Heights, South Carolina, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September in Windsor Heights?

On the first day of September in Windsor Heights, sunrise is at 6:56 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:07 pm EDT.

How long on average sun shines in September in Windsor Heights?

In Windsor Heights, South Carolina, the average sunshine duration in September is 9h.

What is the UV index intensity in September in Windsor Heights?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Windsor Heights, SC

Average temperature in September - Windsor Heights, SC
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (52.2°F).

  • Average low temperature in September: 66.2°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

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Average pressure in September
Windsor Heights, SC

Average pressure in September - Windsor Heights, 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
Windsor Heights, SC

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

The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Windsor Heights, SC

Average humidity in September - Windsor Heights, SC
  • Average humidity in September: 74%

The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January, March and November (70%).

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Average rainfall in September
Windsor Heights, SC

Average rainfall in September - Windsor Heights, SC
  • Average rainfall in September: 0.59"

The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is September (0.59").

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Average rainfall days in September
Windsor Heights, SC

Average rainfall days in September - Windsor Heights, SC
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is November (5.8 days).

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Average snowfall in September
Windsor Heights, SC

Average snowfall in September - Windsor Heights, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Windsor Heights, SC

Average snowfall days in September - Windsor Heights, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).

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Average daylight in September /
Average sunshine in September
Windsor Heights, SC

Average daylight in September / Average sunshine in September - Windsor Heights, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Windsor Heights, SC

Average sunshine days in September - Windsor Heights, SC
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is October (23.9 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in September
Windsor Heights, SC

Average UV index in September - Windsor Heights, SC
  • Average UV index in September: 6

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

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Average cloud cover in September
Windsor Heights, SC

Average cloud cover in September - Windsor Heights, SC
  • Average cloud cover in September: 31

The month with the most cloud cover is February (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
Windsor Heights, SC

Average visibility in September - Windsor Heights, 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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Windsor Heights, South Carolina, USA

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