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 shift from August to September is characterized by an average high-temperature of a warm 84.7°F (29.3°C), not significantly different from the 90.1°F (32.3°C) of August. During the nights in September, the temperature averages to a refreshing 65.3°F (18.5°C).Heat index
September's heat index is computed to be a tropical 93.2°F (34°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In Deadfall Crossroads, the average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.42" (36mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Deadfall Crossroads, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:11 pm EDT.
Sunshine
In Deadfall Crossroads, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Deadfall Crossroads?
What is the UV index intensity in September?
Average temperature in September
Deadfall Crossroads, SC
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in September
Deadfall Crossroads, SC
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Deadfall Crossroads, SC
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are February and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Deadfall Crossroads, SC
- Average humidity in September: 72%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Deadfall Crossroads, SC
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
Deadfall Crossroads, SC
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in September
Deadfall Crossroads, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Deadfall Crossroads, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 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
Deadfall 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: 8h and 3min
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
Deadfall Crossroads, SC
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in September
Deadfall Crossroads, SC
- Average UV index in September: 5
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Deadfall Crossroads, SC
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Deadfall 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).
Deadfall Crossroads, South Carolina, USA
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