September weather forecast
Bone Cave, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Bone Cave, Tennessee, with an average temperature ranging between max 79.7°F (26.5°C) and min 59.9°F (15.5°C).

Temperature

The average high-temperature during September registers at a still warm 79.7°F (26.5°C), maintaining a close resemblance to the previous month. An average low-temperature of 59.9°F (15.5°C) marks the month of September.

Humidity

The average relative humidity in September in Bone Cave is 77%.

Rainfall

In Bone Cave, in September, during 14.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Bone Cave, during the entire year, the rain falls for 177.3 days and collects up to 31.02" (788mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:14 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:27 pm CDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In Bone Cave, 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 rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In September, the average high-temperature and low-temperature are 79.7°F (26.5°C) and 59.9°F (15.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is computed to be 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How much does it rain in Bone Cave in September?

In Bone Cave, in September, during 14.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Bone Cave have in September?

In Bone Cave, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:14 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:27 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.2h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Bone Cave, TN

Average temperature in September - Bone Cave, TN
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in September
Bone Cave, TN

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Bone Cave, TN

Average wind speed in September - Bone Cave, TN
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Bone Cave, TN

Average humidity in September - Bone Cave, TN
  • Average humidity in September: 77%

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
Bone Cave, TN

Average rainfall in September - Bone Cave, TN
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is November (1.65").

Average rainfall days in September
Bone Cave, TN

Average rainfall days in September - Bone Cave, TN
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in September
Bone Cave, TN

Average snowfall in September - Bone Cave, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Bone Cave, TN

Average snowfall days in September - Bone Cave, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (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
Bone Cave, TN

Average daylight in September / Average sunshine in September - Bone Cave, 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 48min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in September
Bone Cave, TN

Average sunshine days in September - Bone Cave, TN
  • Average sunshine days in September: 13.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (8.4 days).

Average UV index in September
Bone Cave, TN

Average UV index in September - Bone Cave, 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 and December (UV index 2).

Average cloud cover in September
Bone Cave, TN

Average cloud cover in September - Bone Cave, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Bone Cave, TN

Average visibility in September - Bone Cave, TN
  • Average visibility in September: 5mi

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

Bone Cave, Tennessee, USA

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