September weather forecast
Mansfield, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Mansfield, Tennessee, with an average temperature fluctuating between 62.4°F (16.9°C) and 81.9°F (27.7°C).

Temperature

In Mansfield, entering September brings a subtle temperature decrement, reducing from August's hot 87.4°F (30.8°C) to a warm 81.9°F (27.7°C). The low-temperature averages to a comfortable 62.4°F (16.9°C) during the nights of September.

Heat index

Throughout September, the heat index is computed to be a tropical 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

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

Rainfall

The month with the least rainfall in Mansfield, Tennessee, is September, when the rain falls for 12.5 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

In Mansfield, snow does not fall in April through October.

Daylight

In Mansfield, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:37 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during September translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What is the usual temperature for Mansfield in September?

In Mansfield, 81.9°F (27.7°C) is the average high-temperature and 62.4°F (16.9°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What is the average humidity in September?

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

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.85" (47mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 12.5 days. Throughout September, 1.85" (47mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September in Mansfield?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:37 pm CDT.

How long on average sun shines in September in Mansfield?

The average sunshine duration in September in Mansfield is 9.3h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents 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
Mansfield, TN

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

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in September: 62.4°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 (30.2°F).

Average pressure in September
Mansfield, TN

Average pressure in September - Mansfield, TN
  • Average pressure in September: 30.02"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).

Average wind speed in September
Mansfield, TN

Average wind speed in September - Mansfield, TN
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are January, February and April (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
Mansfield, TN

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

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Mansfield, TN

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

The wettest month (with the highest rainfall) is February (4.17").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Mansfield, TN

Average rainfall days in September - Mansfield, TN
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in September
Mansfield, TN

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

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Mansfield, TN

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

The month with the highest number of snowfall days is January (4.1 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
Mansfield, TN

Average daylight in September / Average sunshine in September - Mansfield, 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: 9h and 2min

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 36min).

Average sunshine days in September
Mansfield, TN

Average sunshine days in September - Mansfield, TN
  • Average sunshine days in September: 16 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Mansfield, TN

Average UV index in September - Mansfield, TN
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Mansfield, TN

Average cloud cover in September - Mansfield, TN
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in September
Mansfield, TN

Average visibility in September - Mansfield, 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).

Mansfield, Tennessee, USA

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