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 advent of September brings a subtle shift in temperature, with the average high moving from a tropical 87.3°F (30.7°C) in August to a warm 81.5°F (27.5°C). Vulcan registers a consistent average low-temperature of 60.8°F (16°C) during September.Heat index
In September, the heat index is estimated at a hot 87.8°F (31°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.Data suggests that the heat index is set for environments in shade and with a 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 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in September in Vulcan is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 13 days and accumulates 2.6" (66mm) of precipitation.Snowfall
In Vulcan, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:27 pm CDT.
Sunshine
The average sunshine in September in Vulcan is 8.3h.UV index
In Vulcan, Tennessee, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the temperature in September in Vulcan?
What is the average humidity in September in Vulcan?
What is the driest month in Vulcan?
How many days does it rain in September in Vulcan?
When it does not snow in Vulcan?
How many hours of daylight does Vulcan have in September?
When are sunrise and sunset in September in Vulcan?
How many hours of sunshine does Vulcan have in September?
What is the UV index reading in September in Vulcan?
Average temperature in September
Vulcan, TN
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in September
Vulcan, 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
Vulcan, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Vulcan, TN
- Average humidity in September: 77%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Vulcan, TN
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is September (2.6").
Average rainfall days in September
Vulcan, TN
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Vulcan, TN
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Vulcan, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Vulcan, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Vulcan, TN
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in September
Vulcan, 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
Vulcan, TN
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Vulcan, TN
- Average visibility in September: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Vulcan, Tennessee, USA
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