September weather forecastCheraw, SC
September
Weather in September
September, the first month of the autumn in Cheraw, is still a warm month, with temperature in the range of an average low of 65.5°F (18.6°C) and an average high of 83.3°F (28.5°C).Temperature
The advent of September presents an average high-temperature of a warm 83.3°F (28.5°C), maintaining a close correlation with the preceding month. The average temperature during September nights is registered at an enjoyable 65.5°F (18.6°C).Heat index
The heat index value for September is estimated at a tropical 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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
The months with the highest humidity are May, September and December, with an average relative humidity of 75%.Rainfall
In September, the rain falls for 13.8 days. Throughout September, 2.95" (75mm) of precipitation is accumulated. Throughout the year, there are 159.8 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Cheraw.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:04 pm EDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cheraw, SC
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 65.5°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 (35.8°F).
Average pressure in September
Cheraw, SC
- Average pressure in September: 30.02"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).
Average wind speed in September
Cheraw, SC
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Cheraw, SC
- Average humidity in September: 75%
The months with the highest relative humidity are May, September and December (75%).
The months with the lowest relative humidity are January, March, July and November (72%).
Average rainfall in September
Cheraw, SC
- Average rainfall in September: 2.95"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in September
Cheraw, SC
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in September
Cheraw, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cheraw, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cheraw, SC
- Average daylight in September: 12h and 24min
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 12min
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).
Average sunshine days in September
Cheraw, SC
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (21.2 days).
The months with the least sunshine days are July and August (9.9 days).
Average UV index in September
Cheraw, 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).
Average cloud cover in September
Cheraw, 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).
Average visibility in September
Cheraw, 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).
