September weather forecast
Orchard Knob, TN

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Weather in September

September, the first month of the autumn in Orchard Knob, is still a warm month, with an average temperature ranging between min 61.2°F (16.2°C) and max 82.2°F (27.9°C).

Temperature

Orchard Knob's weather in September indicates an average high-temperature of a warm 82.2°F (27.9°C), nearly consistent with the 87.4°F (30.8°C) of August. An average low-temperature of 61.2°F (16.2°C) is recorded in the month of September in Orchard Knob.

Heat index

The heat index value for September is computed to be a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

The average relative humidity in September is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 2.48" (63mm) of precipitation.

Snowfall

In Orchard Knob, snow does not fall in May through October.

Daylight

In Orchard Knob, the average length of the day in September is 12h and 23min.
On the first day of September in Orchard Knob, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:26 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In Orchard Knob, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What is the usual temperature for Orchard Knob in September?

An average high-temperature, in September, in Orchard Knob, is 82.2°F (27.9°C) and the average low-temperature is 61.2°F (16.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in September is computed to be 87.8°F (31°C).

What is the average humidity in September in Orchard Knob?

In September, the average relative humidity in Orchard Knob, Tennessee, is 75%.

What is the driest month in Orchard Knob?

September is the month with the least rainfall in Orchard Knob. Rain falls for 12.4 days and accumulates 2.48" (63mm) of precipitation.

How many days does it rain in September in Orchard Knob?

In Orchard Knob, Tennessee, in September, it is raining for 12.4 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow in Orchard Knob?

May through October are months without snowfall.

What is the average length of the day in September in Orchard Knob?

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

When is the sunrise / sunset in September in Orchard Knob?

On the first day of September in Orchard Knob, Tennessee, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:26 pm EDT.

How many hours of sunshine does Orchard Knob have in September?

In Orchard Knob, Tennessee, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Orchard Knob?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Orchard Knob, TN

Average temperature in September - Orchard Knob, TN
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Orchard Knob, TN

Average pressure in September - Orchard Knob, 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).

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Average wind speed in September
Orchard Knob, TN

Average wind speed in September - Orchard Knob, TN
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

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Average humidity in September
Orchard Knob, TN

Average humidity in September - Orchard Knob, TN
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Orchard Knob, TN

Average rainfall in September - Orchard Knob, TN
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (2.48").

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Average rainfall days in September
Orchard Knob, TN

Average rainfall days in September - Orchard Knob, TN
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in September
Orchard Knob, TN

Average snowfall in September - Orchard Knob, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Orchard Knob, TN

Average snowfall days in September - Orchard Knob, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.9 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
Orchard Knob, TN

Average daylight in September / Average sunshine in September - Orchard Knob, 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Orchard Knob, TN

Average sunshine days in September - Orchard Knob, TN
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9 days).

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Average UV index in September
Orchard Knob, TN

Average UV index in September - Orchard Knob, 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).

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Average cloud cover in September
Orchard Knob, TN

Average cloud cover in September - Orchard Knob, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Orchard Knob, TN

Average visibility in September - Orchard Knob, TN
  • Average visibility in September: 6mi

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

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Orchard Knob, Tennessee, USA

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