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 onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 89.4°F (31.9°C) in August to a moderately hot 83.7°F (28.7°C). Throughout September, a steady low-temperature average of 63.5°F (17.5°C) is noted.Heat index
The heat index value for September is estimated at a hot 89.6°F (32°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.The standards for the heat index are set for locations in shade and under light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In September, the average relative humidity is 72%.Rainfall
The month with the least rainfall in Stonewall Woods is September, when the rain falls for 9.7 days and typically collects 0.79" (20mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Stonewall Woods, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of September, in Stonewall Woods, sunrise is at 7:25 am and sunset at 7:15 pm EDT.
Sunshine
In September, the average sunshine in Stonewall Woods is 8.5h.UV index
In Stonewall Woods, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
How hot is it in Stonewall Woods in September?
What is the average humidity in September in Stonewall Woods?
What is the driest month in Stonewall Woods?
How many days does it rain in September in Stonewall Woods?
When it does not snow in Stonewall Woods?
What is the average length of the day in September in Stonewall Woods?
When are sunrise and sunset in September in Stonewall Woods?
How long on average sun shines in September in Stonewall Woods?
What is the UV index reading in September in Stonewall Woods?
Average temperature in September
Stonewall Woods, SC
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Stonewall Woods, SC
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Stonewall Woods, SC
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Stonewall Woods, 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 (69%).
Average rainfall in September
Stonewall Woods, SC
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in September
Stonewall Woods, SC
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).
Average snowfall in September
Stonewall Woods, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Stonewall Woods, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 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
Stonewall Woods, 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 6min).
Average sunshine days in September
Stonewall Woods, SC
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in September
Stonewall Woods, SC
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Stonewall Woods, SC
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Stonewall Woods, 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).
Stonewall Woods, South Carolina, USA
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