September weather forecast
Motts Crossroads, SC

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Weather in September

September, the first month of the autumn in Motts Crossroads, is still a warm month, with an average temperature varying between 66.9°F (19.4°C) and 83.8°F (28.8°C).

Temperature

September's arrival shows an average high-temperature of a warm 83.8°F (28.8°C), hardly different from the previous month. Motts Crossroads's average low-temperature during September nights is observed to be an enjoyable 66.9°F (19.4°C).

Heat index

For September, the heat index is computed to be a tropical 93.2°F (34°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. 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. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The months with the highest humidity are May, August and September, with an average relative humidity of 78%.

Rainfall

In Motts Crossroads, South Carolina, in September, during 15.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Motts Crossroads, South Carolina, during the entire year, the rain falls for 170.2 days and collects up to 34.06" (865mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In Motts Crossroads, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:04 pm EDT.

Sunshine

The average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature during September is 83.8°F (28.8°C) and the low-temperature is 66.9°F (19.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is computed to be 93.2°F (34°C).

What are the most humid months?

The months with the highest humidity are May, August and September, with an average relative humidity of 78%.

What is the average humidity in September?

In Motts Crossroads, the average relative humidity in September is 78%.

How much does it rain in September?

In Motts Crossroads, in September, it is raining for 15.8 days, with typically 3.07" (78mm) of accumulated precipitation.

When it does not snow?

March through December are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:04 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.1h.

What is the UV index intensity in September?

In Motts Crossroads, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from 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
Motts Crossroads, SC

Average temperature in September - Motts Crossroads, SC
  • Average high temperature in September: 83.8°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 (53.4°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

Average pressure in September
Motts Crossroads, SC

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

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

Average wind speed in September
Motts Crossroads, SC

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

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Motts Crossroads, SC

Average humidity in September - Motts Crossroads, SC
  • Average humidity in September: 78%

The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January and November (73%).

Average rainfall in September
Motts Crossroads, SC

Average rainfall in September - Motts Crossroads, SC
  • Average rainfall in September: 3.07"

The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Motts Crossroads, SC

Average rainfall days in September - Motts Crossroads, SC
  • Average rainfall days in September: 15.8 days

The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September
Motts Crossroads, SC

Average snowfall in September - Motts Crossroads, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Motts Crossroads, SC

Average snowfall days in September - Motts Crossroads, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Motts Crossroads, SC

Average daylight in September / Average sunshine in September - Motts Crossroads, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Motts Crossroads, SC

Average sunshine days in September - Motts Crossroads, SC
  • Average sunshine days in September: 12.3 days

The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in September
Motts Crossroads, SC

Average UV index in September - Motts Crossroads, 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, February and December (UV index 3).

Average cloud cover in September
Motts Crossroads, SC

Average cloud cover in September - Motts Crossroads, SC
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Motts Crossroads, SC

Average visibility in September - Motts Crossroads, 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).

Motts Crossroads, South Carolina, USA

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