September weather forecast
McColl, SC

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Weather in September

September, the first month of the autumn in McColl, is also a moderately hot month, with an average temperature varying between 66°F (18.9°C) and 82.9°F (28.3°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's tropical 88.3°F (31.3°C) to a moderately hot 82.9°F (28.3°C). McColl's average low-temperature in the month of September is recorded at an enjoyable 66°F (18.9°C).

Heat index

The heat index for September is evaluated at a tropical 89.6°F (32°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

The months with the highest humidity in McColl are May, August, September and December, with an average relative humidity of 76%.

Rainfall

In McColl, South Carolina, in September, during 14.1 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In McColl, during the entire year, the rain falls for 157 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

In McColl, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:51 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:03 pm EDT.

Sunshine

In McColl, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

How hot does it get in McColl in September?

The high-temperature, in September, in McColl, is 82.9°F (28.3°C), while the low-temperature averages to 66°F (18.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is evaluated at 89.6°F (32°C).

What are the most humid months in McColl?

The months with the highest humidity are May, August, September and December, with an average relative humidity of 76%.

What is the average humidity in September in McColl?

The average relative humidity in September in McColl, South Carolina, is 76%.

How many days does it rain in September in McColl?

In September, in McColl, the rain falls for 14.1 days. Throughout September, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in McColl?

April through October are months without snowfall in McColl.

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

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

What time are sunrise and sunset in September in McColl?

On the first day of September, sunrise is at 6:51 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:03 pm EDT.

How long on average sun shines in September in McColl?

In September, the average sunshine duration is 9.3h.

How high is the UV index in September in McColl?

In McColl, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
McColl, SC

Average temperature in September - McColl, SC
  • Average high temperature in September: 82.9°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 (50.9°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36°F).

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Average pressure in September
McColl, SC

Average pressure in September - McColl, 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 (29.96"Hg).

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Average wind speed in September
McColl, SC

Average wind speed in September - McColl, SC
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
McColl, SC

Average humidity in September - McColl, SC
  • Average humidity in September: 76%

The months with the highest relative humidity are May, August, September and December (76%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in September
McColl, SC

Average rainfall in September - McColl, SC
  • Average rainfall in September: 2.99"

The wettest month (with the highest rainfall) is August (3.98").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in September
McColl, SC

Average rainfall days in September - McColl, SC
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in September
McColl, SC

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

The month with the highest snowfall is February (0.67").
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
McColl, SC

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

The month with the highest number of snowfall days is February (0.8 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
McColl, SC

Average daylight in September / Average sunshine in September - McColl, 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 2min

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 30min).

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Average sunshine days in September
McColl, SC

Average sunshine days in September - McColl, SC
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (8.4 days).

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Average UV index in September
McColl, SC

Average UV index in September - McColl, 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
McColl, SC

Average cloud cover in September - McColl, SC
  • Average cloud cover in September: 32

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 29).

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Average visibility in September
McColl, SC

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

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