September weather forecast
Copperhill, TN

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Weather in September

September, the first month of the autumn in Copperhill, is still a warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 79.3°F (26.3°C).

Temperature

In September, Copperhill experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 79.3°F (26.3°C), closely mirroring the climate in August. During the month of September, Copperhill's nighttime temperature lowers to an average of 59.5°F (15.3°C).

Humidity

In Copperhill, the average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 14.9 days and accumulates 2.91" (74mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 7:10 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during September leads to these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In September, in Copperhill, the average high-temperature is 79.3°F (26.3°C), and the average low-temperature is 59.5°F (15.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

What is the driest month in Copperhill?

The month with the least rainfall is September, when the rain falls for 14.9 days and typically collects 2.91" (74mm) of precipitation.

How many days does it rain in September in Copperhill?

In Copperhill, during September, the rain falls for 14.9 days and regularly aggregates up to 2.91" (74mm) of precipitation.

When it does not snow?

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

Does it snow in September?

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

What is the average length of the day in September?

In Copperhill, Tennessee, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:10 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

How many hours of sunshine does Copperhill have in September?

In September, the average sunshine duration is 8.5h.

What is the UV index intensity in September?

In Copperhill, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Copperhill, TN

Average temperature in September - Copperhill, TN
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in September
Copperhill, TN

Average pressure in September - Copperhill, TN
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Copperhill, TN

Average wind speed in September - Copperhill, TN
  • Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in September
Copperhill, TN

Average humidity in September - Copperhill, TN
  • Average humidity in September: 78%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in September
Copperhill, TN

Average rainfall in September - Copperhill, TN
  • Average rainfall in September: 2.91"

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").

Average rainfall days in September
Copperhill, TN

Average rainfall days in September - Copperhill, TN
  • Average rainfall days in September: 14.9 days

The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).

Average snowfall in September
Copperhill, TN

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

The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Copperhill, TN

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

The month with the highest number of snowfall days is January (4.5 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
Copperhill, TN

Average daylight in September / Average sunshine in September - Copperhill, 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 54min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Copperhill, TN

Average sunshine days in September - Copperhill, TN
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).

Average UV index in September
Copperhill, TN

Average UV index in September - Copperhill, 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
Copperhill, TN

Average cloud cover in September - Copperhill, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in September
Copperhill, TN

Average visibility in September - Copperhill, TN
  • Average visibility in September: 5mi

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

Copperhill, Tennessee, USA

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