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 commencement is accompanied by an average high-temperature of a moderately hot 82.2°F (27.9°C), diverging marginally from August's 87.4°F (30.8°C). Throughout the month of September, Lake Vista expects an average low of 61.2°F (16.2°C).Heat index
For most parts of September, the heat index is estimated at a hot 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
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 perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In September, the average relative humidity in Lake Vista is 75%.Rainfall
September is the month with the least rainfall in Lake Vista, Tennessee. Rain falls for 12.4 days and accumulates 2.48" (63mm) of precipitation.Snowfall
May through October are months without snowfall in Lake Vista.Daylight
The average length of the day in September in Lake Vista is 12h and 23min.On the first day of September in Lake Vista, sunrise is at 7:13 am and sunset at 8:07 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 Vista 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 medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 during September leads to these advisories:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the average September temperature in Lake Vista?
What is the average humidity in September in Lake Vista?
What is the driest month in Lake Vista?
How many days does it rain in September in Lake Vista?
When it does not snow in Lake Vista?
How many hours of daylight does Lake Vista have in September?
When are sunrise and sunset in September in Lake Vista?
How many hours of sunshine does Lake Vista have in September?
How high is the UV index in September in Lake Vista?
Average temperature in September
Lake Vista, TN
- Average high temperature in September: 82.2°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 (46.9°F).
- Average low temperature in September: 61.2°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 Vista, 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 (29.98"Hg).
Average wind speed in September
Lake Vista, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in September
Lake Vista, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Lake Vista, TN
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days in September
Lake Vista, TN
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Lake Vista, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lake Vista, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.9 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 Vista, 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: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Lake Vista, TN
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Lake Vista, 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 Vista, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Lake Vista, TN
- Average visibility in September: 6mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Lake Vista, Tennessee, USA
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