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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's tropical 86.9°F (30.5°C) to a moderately hot 81.5°F (27.5°C). In Lascassas, in September, the average low-temperature is a refreshing 61.9°F (16.6°C).Heat index
The heat index for September is appraised at a tropical 86°F (30°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.The standards for the heat index are set for locations in shade and under light breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 8 days and accumulates 0.39" (10mm) of precipitation.Snowfall
In Lascassas, snow does not fall in April through October.Daylight
The average length of the day in September in Lascassas is 12h and 23min.On the first day of September, sunrise is at 6:17 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:29 pm CDT.
Sunshine
The average sunshine in September in Lascassas is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Lascassas?
What is the average humidity in September in Lascassas?
What is the driest month in Lascassas?
How much does it rain in Lascassas in September?
When it does not snow in Lascassas?
What is the average length of the day in September in Lascassas?
What time are sunrise and sunset in September in Lascassas?
How long on average sun shines in September in Lascassas?
How high is the UV index in September in Lascassas?
Average temperature in September
Lascassas, TN
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in September
Lascassas, TN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Lascassas, TN
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Lascassas, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Lascassas, TN
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is February (1.5").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in September
Lascassas, TN
- Average rainfall days in September: 8 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in September
Lascassas, TN
- 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 and October (0").
Average snowfall days in September
Lascassas, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Lascassas, TN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
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 June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Lascassas, TN
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Lascassas, 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, February and December (UV index 2).
Average cloud cover in September
Lascassas, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Lascassas, 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).
Lascassas, Tennessee, USA
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