September weather forecastCalhoun Falls, SC
September
Weather in September
The first month of the autumn, September, is still a warm month in Calhoun Falls, South Carolina, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 64.9°F (18.3°C).Temperature
During September, Calhoun Falls observes a subtle ascent to a warm 84.9°F (29.4°C) from August's 90.1°F (32.3°C) in the average high-temperature. Calhoun Falls, during the nights of September, experiences an average temperature drop to a refreshing 64.9°F (18.3°C).Heat index
September's average heat index is estimated at a tropical 93.2°F (34°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The average relative humidity in September is 71%.Rainfall
The month with the least rainfall in Calhoun Falls is September, when the rain falls for 10.2 days and typically collects 0.83" (21mm) of precipitation.Snowfall
In Calhoun Falls, snow does not fall in April through December.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Calhoun Falls, sunrise is at 7:04 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:15 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Calhoun Falls, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calhoun Falls, SC
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Calhoun Falls, SC
- Average pressure in September: 30.03"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
Calhoun Falls, SC
- Average wind speed in September: 5.1mph
The windiest months (with the highest average wind speed) are January and February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Calhoun Falls, SC
- Average humidity in September: 71%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Calhoun Falls, SC
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is September (0.83").
Average rainfall days in September
Calhoun Falls, SC
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in September
Calhoun Falls, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Calhoun Falls, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 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
Calhoun Falls, 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 36min
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 18min).
Average sunshine days in September
Calhoun Falls, SC
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Calhoun Falls, 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
Calhoun Falls, SC
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June, July and October (Cloud cover 29).
Average visibility in September
Calhoun Falls, SC
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
