September weather forecast
Nelsontown, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Nelsontown, Tennessee, with an average temperature fluctuating between 80.2°F (26.8°C) and 56.3°F (13.5°C).

Temperature

The beginning of September records an average high-temperature of a still warm 80.2°F (26.8°C), almost echoing the conditions of the previous month. In Nelsontown, a significant divergence from daytime highs is recorded, with average lows of 56.3°F (13.5°C) during September nights.

Humidity

July through September and November, with an average relative humidity of 74%, are the least humid months.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.3 days and typically collects 0.98" (25mm) of precipitation.

Snowfall

In Nelsontown, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct Sun exposure should be minimized especially during midday when radiation is most intense. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Nelsontown in September?

In September, in Nelsontown, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 95°F (35°C).

What are the least humid months?

The months with the lowest humidity are July through September and November, with an average relative humidity of 74%.

What is the average humidity in September?

The average relative humidity in September is 74%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 11.3 days and accumulates 0.98" (25mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 11.3 days. Throughout September, 0.98" (25mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Nelsontown have in September?

The average day length in September is 12h and 24min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

How many hours of sunshine does Nelsontown have in September?

The average sunshine duration in September is 8.7h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe 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
Nelsontown, TN

Average temperature in September - Nelsontown, TN
  • Average high temperature in September: 80.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in September
Nelsontown, TN

Average pressure in September - Nelsontown, TN
  • Average pressure in September: 30.06"Hg

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

Average wind speed in September
Nelsontown, TN

Average wind speed in September - Nelsontown, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in September
Nelsontown, TN

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

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August, September and November (74%).

Average rainfall in September
Nelsontown, TN

Average rainfall in September - Nelsontown, TN
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in September
Nelsontown, TN

Average rainfall days in September - Nelsontown, TN
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is November (8 days).

Average snowfall in September
Nelsontown, TN

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

The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Nelsontown, TN

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

The month with the highest number of snowfall days is January (5.2 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
Nelsontown, TN

Average daylight in September / Average sunshine in September - Nelsontown, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in September
Nelsontown, TN

Average sunshine days in September - Nelsontown, TN
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in September
Nelsontown, TN

Average UV index in September - Nelsontown, 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
Nelsontown, TN

Average cloud cover in September - Nelsontown, TN
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Nelsontown, TN

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

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

Nelsontown, Tennessee, USA

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