September weather forecast
Limestone, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Limestone, Tennessee, with an average temperature ranging between min 55.4°F (13°C) and max 77.9°F (25.5°C).

Temperature

In September, Limestone notes an average high-temperature of a still warm 77.9°F (25.5°C), hardly different from the preceding month. Limestone registers a marked temperature plunge to a mild 55.4°F (13°C) during the cool September nights.

Humidity

In September, the average relative humidity is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.8 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Limestone, 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 7:15 pm EDT.

Sunshine

In Limestone, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Limestone in September?

The high-temperature during September is 77.9°F (25.5°C) and the low-temperature is 55.4°F (13°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is evaluated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.8 days and typically collects 1.61" (41mm) of precipitation.

How much does it rain in September?

In Limestone, during September, the rain falls for 13.8 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When it does not snow in Limestone?

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

Does it snow in September?

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

How many hours of daylight does Limestone have in September?

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

What time 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 7:15 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

What is the UV index reading in September?

In Limestone, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Limestone, TN

Average temperature in September - Limestone, TN
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in September
Limestone, TN

Average pressure in September - Limestone, 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
Limestone, TN

Average wind speed in September - Limestone, TN
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in September
Limestone, TN

Average humidity in September - Limestone, TN
  • Average humidity in September: 77%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).

Average rainfall in September
Limestone, TN

Average rainfall in September - Limestone, TN
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in September
Limestone, TN

Average rainfall days in September - Limestone, TN
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in September
Limestone, TN

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

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Limestone, TN

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

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Limestone, TN

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

Average sunshine days in September
Limestone, TN

Average sunshine days in September - Limestone, TN
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in September
Limestone, TN

Average UV index in September - Limestone, TN
  • Average UV index in September: 4

The months with the highest UV index are 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
Limestone, TN

Average cloud cover in September - Limestone, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Limestone, TN

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

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

Limestone, Tennessee, USA

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