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
As September begins, there is a minor decrease in the average high-temperature, softly falling from a hot 87.6°F (30.9°C) in August to a warm 82.2°F (27.9°C). The nighttime temperature in Iron City, during September, averages of 63.3°F (17.4°C).Heat index
September's heat index is calculated to be a tropical 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
The average relative humidity in September is 75%.Rainfall
In Iron City, in September, during 13.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 164 rainfall days, and 37.56" (954mm) of precipitation is accumulated.Snowfall
In Iron City, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:16 pm. On the last day of September, in Iron City, sunrise is at 6:44 am and sunset at 6:35 pm CDT.
Sunshine
In September, the average sunshine in Iron City is 8.7h.UV index
In Iron City, 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 average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the temperature in September in Iron City?
What is the average humidity in September in Iron City?
How many days does it rain in September in Iron City?
When it does not snow in Iron City?
What is the average length of the day in September in Iron City?
When are sunrise and sunset in September in Iron City?
How long on average sun shines in September in Iron City?
How high is the UV index in September in Iron City?
Average temperature in September
Iron City, TN
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Iron City, 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 (29.97"Hg).
Average wind speed in September
Iron City, TN
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Iron City, TN
- Average humidity in September: 75%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Iron City, TN
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is November (2.32").
Average rainfall days in September
Iron City, TN
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Iron City, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Iron City, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (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
Iron City, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Iron City, TN
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Iron City, TN
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Iron City, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Iron City, 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).
Iron City, Tennessee, USA
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