September weather forecast
Corryton, TN

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Weather in September

September, the first month of the autumn in Corryton, is still a warm month, with an average temperature fluctuating between 80.6°F (27°C) and 58.5°F (14.7°C).

Temperature

September implies a soft temperature shift, with average high-temperatures reducing from August's hot 86.5°F (30.3°C) to a warm 80.6°F (27°C). A noticeable downturn in temperature characterizes the September nights, averaging at a moderate 58.5°F (14.7°C).

Heat index

The heat index in September is calculated to be 84.2°F (29°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Corryton, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.42" (36mm) of precipitation.

Snowfall

In Corryton, snow does not fall in May through September.

Daylight

In Corryton, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 7:07 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:19 pm EDT.

Sunshine

In Corryton, the average sunshine in September is 8.8h.

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 maximum UV index, 5 during September, leads to the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The high-temperature, in September, in Corryton, records 80.6°F (27°C), while the low-temperature is 58.5°F (14.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in September is calculated to be 84.2°F (29°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.3 days and accumulates 1.42" (36mm) of precipitation.

How many days does it rain in September?

In Corryton, Tennessee, in September, it is raining for 12.3 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow?

In Corryton, snow does not fall in May through September.

Does it snow in September?

In Corryton, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Corryton have in September?

In Corryton, the average day length in September is 12h and 24min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 8:02 pm. On the last day of the month, in Corryton, Tennessee, sunrise is at 7:30 am and sunset at 7:19 pm EDT.

How long on average sun shines in September?

In Corryton, the average sunshine duration in September is 8.8h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Corryton, TN

Average temperature in September - Corryton, TN
  • Average high temperature in September: 80.6°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Corryton, TN

Average pressure in September - Corryton, TN
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Corryton, TN

Average wind speed in September - Corryton, TN
  • Average wind speed in September: 3.7mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in September
Corryton, TN

Average humidity in September - Corryton, TN
  • Average humidity in September: 74%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is August (73%).

Average rainfall in September
Corryton, TN

Average rainfall in September - Corryton, TN
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is February (3.31").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in September
Corryton, TN

Average rainfall days in September - Corryton, TN
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Corryton, TN

Average snowfall in September - Corryton, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Corryton, TN

Average snowfall days in September - Corryton, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.6 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
Corryton, TN

Average daylight in September / Average sunshine in September - Corryton, 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 42min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Corryton, TN

Average sunshine days in September - Corryton, TN
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (11.6 days).

Average UV index in September
Corryton, TN

Average UV index in September - Corryton, 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
Corryton, TN

Average cloud cover in September - Corryton, TN
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 27).

Average visibility in September
Corryton, TN

Average visibility in September - Corryton, TN
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

Corryton, Tennessee, USA

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