September weather forecast
Windom Corner, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Windom Corner, South Carolina, with an average temperature fluctuating between 84.2°F (29°C) and 69.8°F (21°C).

Temperature

The arrival of September sees a recorded average high-temperature of a moderately hot 84.2°F (29°C), showing little divergence from the previous month's conditions. In Windom Corner, in September, the average low-temperature is an agreeable 69.8°F (21°C).

Heat index

The heat index value for September is evaluated at a hot 93.2°F (34°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Understanding the heat index involves considering values for shaded locales with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Windom Corner, in September, during 17.5 rainfall days, 4.13" (105mm) of precipitation is typically accumulated. Throughout the year, there are 179.5 rainfall days, and 40.79" (1036mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Windom Corner.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:04 pm EDT.

Sunshine

In Windom Corner, the average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

In Windom Corner, in September, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 69.8°F (21°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 93.2°F (34°C).

What is the average humidity in September in Windom Corner?

The average relative humidity in September is 77%.

How many days does it rain in September?

In Windom Corner, in September, it is raining for 17.5 days, with typically 4.13" (105mm) of accumulated precipitation.

When it does not snow?

In Windom Corner, snow does not fall in March through November.

What is the average length of the day in September in Windom Corner?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:53 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:04 pm EDT.

How many hours of sunshine does Windom Corner have in September?

In September, the average sunshine duration is 9.1h.

What is the UV index intensity in September?

In Windom Corner, South Carolina, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Windom Corner, SC

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

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in September: 69.8°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

Average pressure in September
Windom Corner, SC

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Windom Corner, SC

Average wind speed in September - Windom Corner, SC
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Windom Corner, SC

Average humidity in September - Windom Corner, SC
  • Average humidity in September: 77%

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).

Average rainfall in September
Windom Corner, SC

Average rainfall in September - Windom Corner, SC
  • Average rainfall in September: 4.13"

The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Windom Corner, SC

Average rainfall days in September - Windom Corner, SC
  • Average rainfall days in September: 17.5 days

The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September
Windom Corner, SC

Average snowfall in September - Windom Corner, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Windom Corner, SC

Average snowfall days in September - Windom Corner, 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).

Average daylight in September /
Average sunshine in September
Windom Corner, SC

Average daylight in September / Average sunshine in September - Windom Corner, 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Windom Corner, SC

Average sunshine days in September - Windom Corner, SC
  • Average sunshine days in September: 10 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).

Average UV index in September
Windom Corner, SC

Average UV index in September - Windom Corner, 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).

Average cloud cover in September
Windom Corner, SC

Average cloud cover in September - Windom Corner, SC
  • Average cloud cover in September: 29

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Windom Corner, SC

Average visibility in September - Windom Corner, 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).

Windom Corner, South Carolina, USA

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