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
In Lexington, entering September brings a subtle temperature decrement, reducing from August's tropical 88.2°F (31.2°C) to a moderately hot 82.8°F (28.2°C). The month of September records an average low-temperature of 62.8°F (17.1°C) in Lexington.Heat index
The heat index for September is computed to be a tropical 87.8°F (31°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall in Lexington. Rain falls for 11.5 days and accumulates 1.38" (35mm) of precipitation.Snowfall
In Lexington, snow does not fall in May through October.Daylight
In Lexington, Tennessee, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:38 pm CDT.
Sunshine
The average sunshine in September in Lexington, Tennessee, is 9.1h.UV index
In Lexington, Tennessee, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
Is it hot in Lexington during September?
What is the average humidity in September in Lexington?
What is the driest month in Lexington?
How much does it rain in Lexington in September?
When it does not snow in Lexington?
How many hours of daylight does Lexington have in September?
When is the sunrise / sunset in September in Lexington?
How long on average sun shines in September in Lexington?
How high is the UV index in September in Lexington?
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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