Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September brings an average high-temperature of a warm 83.7°F (28.7°C), exhibiting minor difference from the previous month. Whites Crossroads experiences a mean temperature of 66.6°F (19.2°C) during September nights.Heat index
In September, the average heat index is appraised at a hot 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The months with the highest humidity in Whites Crossroads, South Carolina, are May, August and September, with an average relative humidity of 77%.Rainfall
In September, the rain falls for 9.2 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. In Whites Crossroads, South Carolina, during the entire year, the rain falls for 123.1 days and collects up to 13.19" (335mm) of precipitation.Snowfall
In Whites Crossroads, snow does not fall in March through November.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:54 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:05 pm EDT.
Sunshine
In Whites Crossroads, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index in Whites Crossroads is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Whites Crossroads have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Whites Crossroads, SC
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in September: 66.6°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).
Average pressure in September
Whites 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
Whites Crossroads, SC
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Whites Crossroads, SC
- Average humidity in September: 77%
The months with the highest relative humidity are May, August and September (77%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in September
Whites Crossroads, SC
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Whites Crossroads, SC
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (5.7 days).
Average snowfall in September
Whites Crossroads, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Whites Crossroads, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 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
Whites 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Whites Crossroads, SC
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in September
Whites Crossroads, 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
Whites Crossroads, SC
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in September
Whites 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).
Whites Crossroads, South Carolina, USA
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