September weather forecast
Vernon Heights, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Vernon Heights, Tennessee, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 80.2°F (26.8°C).

Temperature

With the onset of September, Vernon Heights's average high-temperature clocks in at a still warm 80.2°F (26.8°C), showing a minor fluctuation from the previous month. A marked difference from the daytime temperatures, Vernon Heights's nighttime temperature falls to an average low of 56.3°F (13.5°C) in September.

Humidity

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

Rainfall

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

Snowfall

In Vernon Heights, snow does not fall in May through October.

Daylight

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

Sunshine

In Vernon Heights, the average sunshine in September is 8.7h.

UV index

In Vernon Heights, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature during September is 80.2°F (26.8°C) and the low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 95°F (35°C).

What is the least humid month?

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

What is the average humidity in September?

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

What is the driest month?

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

How much does it rain in September?

In Vernon Heights, in September, during 11.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow in Vernon Heights?

In Vernon Heights, snow does not fall in May through October.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

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.

How many hours of sunshine does Vernon Heights have in September?

The average sunshine duration in September is 8.7h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents 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
Vernon Heights, TN

Average temperature in September - Vernon Heights, 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
Vernon Heights, TN

Average pressure in September - Vernon Heights, 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
Vernon Heights, TN

Average wind speed in September - Vernon Heights, 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
Vernon Heights, TN

Average humidity in September - Vernon Heights, 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
Vernon Heights, TN

Average rainfall in September - Vernon Heights, 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
Vernon Heights, TN

Average rainfall days in September - Vernon Heights, 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
Vernon Heights, TN

Average snowfall in September - Vernon Heights, 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
Vernon Heights, TN

Average snowfall days in September - Vernon Heights, 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
Vernon Heights, TN

Average daylight in September / Average sunshine in September - Vernon Heights, 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
Vernon Heights, TN

Average sunshine days in September - Vernon Heights, 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
Vernon Heights, TN

Average UV index in September - Vernon Heights, 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
Vernon Heights, TN

Average cloud cover in September - Vernon Heights, 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
Vernon Heights, TN

Average visibility in September - Vernon Heights, 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).

Vernon Heights, Tennessee, USA

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