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
September reveals a small adjustment in temperature, transitioning from an average high of a hot 88.9°F (31.6°C) in August to a moderately hot 83.1°F (28.4°C). Lake Wylie witnesses a consistent average low-temperature of 63.7°F (17.6°C) throughout September.Heat index
The heat index in September is computed to be a hot 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. 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 remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in September is 72%.Rainfall
In September, in Lake Wylie, the rain falls for 12.5 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. In Lake Wylie, during the entire year, the rain falls for 152.2 days and collects up to 29.69" (754mm) of precipitation.Snowfall
April through November are months without snowfall in Lake Wylie.Daylight
The average length of the day in September in Lake Wylie is 12h and 23min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:50 pm. On the last day of September, in Lake Wylie, sunrise is at 7:18 am and sunset at 7:09 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. It's recommended to limit sun exposure when its radiation is at its peak during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
How hot is September in Lake Wylie?
What is the average humidity in September in Lake Wylie?
How much does it rain in Lake Wylie in September?
When it does not snow in Lake Wylie?
What is the average length of the day in September in Lake Wylie?
When is the sunrise / sunset in September in Lake Wylie?
How long on average sun shines in September in Lake Wylie?
How high is the UV index in September in Lake Wylie?
Average temperature in September
Lake Wylie, SC
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Lake Wylie, 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
Lake Wylie, SC
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Lake Wylie, SC
- Average humidity in September: 72%
The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are June and July (70%).
Average rainfall in September
Lake Wylie, SC
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is August (3.19").
The driest month (with the least rainfall) is October (1.85").
Average rainfall days in September
Lake Wylie, SC
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Lake Wylie, SC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.48").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Lake Wylie, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Lake Wylie, SC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
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 24min).
Average sunshine days in September
Lake Wylie, SC
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Lake Wylie, SC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Lake Wylie, SC
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Lake Wylie, 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).
Lake Wylie, South Carolina, USA
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