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 transition into September involves a small decrease in the average high-temperature, dipping slightly from a tropical 88.2°F (31.2°C) in August to a warm 82.8°F (28.2°C). Lexington, during September nights, observes an average temperature of 62.8°F (17.1°C).Heat index
The heat index value during September is computed to be a tropical 87.8°F (31°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Lexington is September, when the rain falls for 11.5 days and typically collects 1.38" (35mm) of precipitation.Snowfall
In Lexington, snow does not fall in May through October.Daylight
In Lexington, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:26 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:38 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In Lexington, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, a daily UV index of 5 turns into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Lexington have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Lexington have in September?
How high is the UV index in September?
Average temperature in September
Lexington, TN
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Lexington, TN
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Lexington, TN
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Lexington, TN
- Average humidity in September: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Lexington, TN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Lexington, TN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Lexington, 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
Lexington, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Lexington, TN
- 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: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Lexington, TN
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Lexington, TN
- 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 February and December (UV index 2).
Average cloud cover in September
Lexington, TN
- Average cloud cover in September: 29
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Lexington, TN
- 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).
Lexington, Tennessee, USA
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