September weather forecastLake Crest, TN
September
Weather in September
The first month of the autumn, September, is still a warm month in Lake Crest, Tennessee, with an average temperature ranging between max 82.6°F (28.1°C) and min 61.3°F (16.3°C).Temperature
The dawn of September sees an average high-temperature of a moderately hot 82.6°F (28.1°C), subtly contrasting with August's 87.8°F (31°C). Lake Crest in September anticipates an average nighttime temperature of 61.3°F (16.3°C).Heat index
In September, the heat index is evaluated at a tropical 89.6°F (32°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. 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. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In September, the average relative humidity in Lake Crest is 75%.Rainfall
The month with the least rainfall in Lake Crest is September, when the rain falls for 11.9 days and typically collects 2.05" (52mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Lake Crest, the average length of the day in September is 12h and 23min.On the first day of September in Lake Crest, sunrise is at 7:13 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.
Sunshine
In September, the average sunshine in Lake Crest is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. To guard against the harmful effects of the Sun, minimize exposure during midday. 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
Lake Crest, TN
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Lake Crest, TN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Lake Crest, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Lake Crest, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August and October (74%).
Average rainfall in September
Lake Crest, TN
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is February (3.62").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Lake Crest, TN
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Lake Crest, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lake Crest, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Crest, TN
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Lake Crest, TN
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Lake Crest, TN
- 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 Crest, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Lake Crest, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, May and December (5mi).





