September weather forecastLeesville, SC
September
Weather in September
The first month of the autumn, September, is still a warm month in Leesville, South Carolina, with an average temperature varying between 84.4°F (29.1°C) and 66.4°F (19.1°C).Temperature
The advent of September observes an average high-temperature of a moderately hot 84.4°F (29.1°C), nearly identical to August's 89.4°F (31.9°C). Leesville records a steady low-temperature average of 66.4°F (19.1°C) during September.Heat index
September's average heat index is appraised at a hot 91.4°F (33°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
The average relative humidity in September in Leesville is 72%.Rainfall
September is the month with the least rainfall in Leesville. Rain falls for 12.8 days and accumulates 1.77" (45mm) of precipitation.Snowfall
In Leesville, snow does not fall in April through November.Daylight
In Leesville, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September in Leesville is 8.4h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. 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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leesville, SC
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in September: 66.4°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in September
Leesville, 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 (29.97"Hg).
Average wind speed in September
Leesville, SC
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Leesville, SC
- Average humidity in September: 72%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Leesville, SC
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Leesville, SC
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is October (8.9 days).
Average snowfall in September
Leesville, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Leesville, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Leesville, 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: 8h and 24min
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 18min).
Average sunshine days in September
Leesville, SC
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Leesville, SC
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Leesville, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Leesville, 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).
