September weather forecast
Bluefield, TN

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Weather in September

September, the first month of the autumn in Bluefield, is still a warm month, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 81.9°F (27.7°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a hot 88°F (31.1°C) in August to a warm 81.9°F (27.7°C). During September, the nighttime temperature averages of 62.6°F (17°C).

Heat index

The heat index in September is calculated to be a tropical 87.8°F (31°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Bluefield, Tennessee, during September, the rain falls for 12.1 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Bluefield, Tennessee, during the entire year, the rain falls for 150.1 days and collects up to 24.41" (620mm) of precipitation.

Snowfall

In Bluefield, snow does not fall in May through October.

Daylight

In Bluefield, the average length of the day in September is 12h and 23min.
On the first day of September in Bluefield, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:30 pm CDT.

Sunshine

In September, the average sunshine in Bluefield is 8.4h.

UV index

The average daily maximum UV index in September in Bluefield is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during September leads to these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What is the temperature in September in Bluefield?

In September, in Bluefield, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in September is calculated to be 87.8°F (31°C).

What is the average humidity in September in Bluefield?

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

How many days does it rain in September in Bluefield?

In Bluefield, during September, the rain falls for 12.1 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Bluefield?

May through October are months without snowfall in Bluefield.

What is the average length of the day in September in Bluefield?

The average day length in September is 12h and 23min.

What time are sunrise and sunset in September in Bluefield?

On the first day of September, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:30 pm CDT.

How long on average sun shines in September in Bluefield?

In September, the average sunshine duration is 8.4h.

What is the UV index reading in September in Bluefield?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Bluefield, TN

Average temperature in September - Bluefield, TN
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 62.6°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in September
Bluefield, TN

Average pressure in September - Bluefield, 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 (29.97"Hg).

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Average wind speed in September
Bluefield, TN

Average wind speed in September - Bluefield, TN
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in September
Bluefield, TN

Average humidity in September - Bluefield, TN
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June, August and October (73%).

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Average rainfall in September
Bluefield, TN

Average rainfall in September - Bluefield, TN
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is November (1.38").

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Average rainfall days in September
Bluefield, TN

Average rainfall days in September - Bluefield, TN
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (7.7 days).

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Average snowfall in September
Bluefield, TN

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

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Bluefield, TN

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

The month with the highest number of snowfall days is January (3.5 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
Bluefield, TN

Average daylight in September / Average sunshine in September - Bluefield, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in September
Bluefield, TN

Average sunshine days in September - Bluefield, TN
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in September
Bluefield, TN

Average UV index in September - Bluefield, 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 February and December (UV index 2).

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Average cloud cover in September
Bluefield, TN

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

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

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Average visibility in September
Bluefield, TN

Average visibility in September - Bluefield, TN
  • Average visibility in September: 6mi

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

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Bluefield, Tennessee, USA

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