September weather forecastJames Crossroads, SC
September
Weather in September
September, the first month of the autumn in James Crossroads, is also a moderately hot month, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 83.8°F (28.8°C).Temperature
James Crossroads starts September with an average high-temperature of a warm 83.8°F (28.8°C), hinting at a minimal fluctuation from August. During the nights in September, James Crossroads experiences a consistent average temperature of 67.1°F (19.5°C).Heat index
September's heat index is calculated 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.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In September, the average relative humidity in James Crossroads is 77%.Rainfall
In James Crossroads, during September, the rain falls for 13.9 days and regularly aggregates up to 2.44" (62mm) of precipitation. In James Crossroads, during the entire year, the rain falls for 158.1 days and collects up to 30.28" (769mm) of precipitation.Snowfall
In James Crossroads, South Carolina, snow does not fall in March through November.Daylight
In James Crossroads, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:55 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:06 pm EDT.
Sunshine
In James Crossroads, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during September leads to these instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
James Crossroads, SC
- Average high temperature in September: 83.8°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 (53.6°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in September
James 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
James Crossroads, SC
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
James Crossroads, SC
- Average humidity in September: 77%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in September
James Crossroads, SC
- Average rainfall in September: 2.44"
The wettest months (with the highest rainfall) are August and December (3.23").
The driest month (with the least rainfall) is January (1.65").
Average rainfall days in September
James Crossroads, SC
- Average rainfall days in September: 13.9 days
The months with the highest number of rainy days are July and August (18.8 days).
The month with the least rainy days is November (8 days).
Average snowfall in September
James Crossroads, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
James Crossroads, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
James Crossroads, 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: 10h and 0min).
- Average sunshine in September: 9h and 0min
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 36min).
Average sunshine days in September
James Crossroads, SC
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
James 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
James Crossroads, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
James 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).
