September weather forecast
Rocky Waters, TN

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Weather in September

September, the first month of the autumn in Rocky Waters, is also a moderately hot month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 59.9°F (15.5°C).

Temperature

As September commences, the average high-temperature subtly reduces, transitioning from a hot 86.7°F (30.4°C) in August to a moderately hot 81.1°F (27.3°C). In September, Rocky Waters reports a consistent average low-temperature of 59.9°F (15.5°C) during the nights.

Heat index

For most parts of September, the heat index is calculated to be a tropical 86°F (30°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In Rocky Waters, the average relative humidity in September is 74%.

Rainfall

September is the month with the least rainfall in Rocky Waters. Rain falls for 10.6 days and accumulates 0.94" (24mm) of precipitation.

Snowfall

In Rocky Waters, snow does not fall in April through September.

Daylight

In Rocky Waters, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:08 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:20 pm EDT.

Sunshine

In September, the average sunshine in Rocky Waters is 8.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the average September temperature in Rocky Waters?

In Rocky Waters, 81.1°F (27.3°C) is the average high-temperature and 59.9°F (15.5°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in September in Rocky Waters?

The average relative humidity in September in Rocky Waters is 74%.

What is the driest month in Rocky Waters?

September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 0.94" (24mm) of precipitation.

How much does it rain in Rocky Waters in September?

In September, in Rocky Waters, the rain falls for 10.6 days. Throughout September, 0.94" (24mm) of precipitation is accumulated.

When it does not snow in Rocky Waters?

In Rocky Waters, snow does not fall in April through September.

Does it snow in Rocky Waters in September?

In Rocky Waters, Tennessee, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Rocky Waters?

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

What time are sunrise and sunset in September in Rocky Waters?

In September, on the first day of the month, sunrise is at 7:08 am and sunset at 8:02 pm. On the last day of the month, in Rocky Waters, sunrise is at 7:30 am and sunset at 7:20 pm EDT.

How long on average sun shines in September in Rocky Waters?

In Rocky Waters, Tennessee, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Rocky Waters?

The average daily maximum UV index in September in Rocky Waters is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from 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
Rocky Waters, TN

Average temperature in September - Rocky Waters, TN
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in September
Rocky Waters, TN

Average pressure in September - Rocky Waters, TN
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Rocky Waters, TN

Average wind speed in September - Rocky Waters, TN
  • Average wind speed in September: 3.8mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in September
Rocky Waters, TN

Average humidity in September - Rocky Waters, TN
  • Average humidity in September: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

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Average rainfall in September
Rocky Waters, TN

Average rainfall in September - Rocky Waters, TN
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").

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Average rainfall days in September
Rocky Waters, TN

Average rainfall days in September - Rocky Waters, TN
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in September
Rocky Waters, TN

Average snowfall in September - Rocky Waters, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in September
Rocky Waters, TN

Average snowfall days in September - Rocky Waters, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Rocky Waters, TN

Average daylight in September / Average sunshine in September - Rocky Waters, 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 48min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in September
Rocky Waters, TN

Average sunshine days in September - Rocky Waters, TN
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).

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Average UV index in September
Rocky Waters, TN

Average UV index in September - Rocky Waters, 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).

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Average cloud cover in September
Rocky Waters, TN

Average cloud cover in September - Rocky Waters, 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 June (Cloud cover 27).

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Average visibility in September
Rocky Waters, TN

Average visibility in September - Rocky Waters, TN
  • Average visibility in September: 6mi

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

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Rocky Waters, Tennessee, USA

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