September weather forecast
Stewart, TN

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Weather in September

September, the first month of the autumn in Stewart, is also a moderately hot month, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 81.7°F (27.6°C).

Temperature

As Stewart enters September, the average high-temperature subtly lowers from the a hot 87.8°F (31°C) of August to a warm 81.7°F (27.6°C). Throughout September, the average low-temperature in Stewart records at a refreshing 61.7°F (16.5°C).

Heat index

The heat index for September is computed to be a tropical 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In Stewart, the average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall in Stewart. Rain falls for 13.4 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:18 pm. On the last day of September, in Stewart, sunrise is at 6:46 am and sunset at 6:35 pm CDT.

Sunshine

In Stewart, Tennessee, the average sunshine in September is 8.9h.

UV index

In Stewart, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. To guard against the harmful effects of the Sun, minimize exposure during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What are September temperatures in Stewart?

An average high-temperature, in September, in Stewart, is 81.7°F (27.6°C) and the average low-temperature is 61.7°F (16.5°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86°F (30°C).

What is the average humidity in September in Stewart?

The average relative humidity in September in Stewart, Tennessee, is 75%.

What is the driest month in Stewart?

September is the month with the least rainfall in Stewart. Rain falls for 13.4 days and accumulates 1.85" (47mm) of precipitation.

How many days does it rain in September in Stewart?

In Stewart, Tennessee, in September, during 13.4 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow in Stewart?

In Stewart, Tennessee, snow does not fall in May through September.

Does it snow in Stewart in September?

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

How many hours of daylight does Stewart have in September?

In September, the average day length in Stewart, Tennessee, is 12h and 24min.

When are sunrise and sunset in September in Stewart?

On the first day of September in Stewart, Tennessee, sunrise is at 6:23 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:35 pm CDT.

How many hours of sunshine does Stewart have in September?

The average sunshine duration in September in Stewart is 8.9h.

What is the UV index intensity in September in Stewart?

In Stewart, Tennessee, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Stewart, TN

Average temperature in September - Stewart, TN
  • Average high temperature in September: 81.7°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 (43.7°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in September
Stewart, TN

Average pressure in September - Stewart, 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 (29.96"Hg).

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Average wind speed in September
Stewart, TN

Average wind speed in September - Stewart, TN
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

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Average humidity in September
Stewart, TN

Average humidity in September - Stewart, TN
  • Average humidity in September: 75%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Stewart, TN

Average rainfall in September - Stewart, TN
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is February (3.98").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in September
Stewart, TN

Average rainfall days in September - Stewart, TN
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.8 days).

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Average snowfall in September
Stewart, TN

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

The month with the highest snowfall is March (0.91").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Stewart, TN

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

The month with the highest number of snowfall days is January (3.8 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
Stewart, TN

Average daylight in September / Average sunshine in September - Stewart, 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 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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Average sunshine days in September
Stewart, TN

Average sunshine days in September - Stewart, TN
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (9.6 days).

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Average UV index in September
Stewart, TN

Average UV index in September - Stewart, 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
Stewart, TN

Average cloud cover in September - Stewart, TN
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Stewart, TN

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

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

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Stewart, Tennessee, USA

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