September weather forecast
Mason, TN

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Weather in September

September, the first month of the autumn in Mason, is also a moderately hot month, with an average temperature ranging between min 64°F (17.8°C) and max 82.8°F (28.2°C).

Temperature

September's weather displays an average high-temperature of a moderately hot 82.8°F (28.2°C), slightly varied from August's 86.7°F (30.4°C). In September, the temperature drops to an average of 64°F (17.8°C) at night.

Heat index

September's heat index is appraised at a hot 87.8°F (31°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. 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 'real feel', is found by incorporating humidity levels into the air temperature measurement. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

The average relative humidity in September is 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.79" (20mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day in Mason is 12h and 23min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:42 pm CDT.

Sunshine

The average sunshine in September in Mason is 9.6h.

UV index

The average daily maximum UV index in September in Mason is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during September translates into the following guidance:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot is it in Mason in September?

In September, in Mason, the average high-temperature is 82.8°F (28.2°C), and the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in September in Mason?

In September, the average relative humidity in Mason, Tennessee, is 73%.

What is the driest month in Mason?

The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.79" (20mm) of precipitation.

How many days does it rain in September in Mason?

In Mason, Tennessee, in September, it is raining for 9.7 days, with typically 0.79" (20mm) of accumulated precipitation.

When it does not snow in Mason?

April through October are months without snowfall in Mason.

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

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

What time are sunrise and sunset in September in Mason?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:24 pm. On the last day of the month, in Mason, sunrise is at 6:52 am and sunset at 6:42 pm CDT.

How long on average sun shines in September in Mason?

In Mason, the average sunshine duration in September is 9.6h.

How high is the UV index in September in Mason?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
Mason, TN

Average temperature in September - Mason, TN
  • Average high temperature in September: 82.8°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in September
Mason, TN

Average pressure in September - Mason, TN
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Mason, TN

Average wind speed in September - Mason, TN
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

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Average humidity in September
Mason, TN

Average humidity in September - Mason, TN
  • Average humidity in September: 73%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Mason, TN

Average rainfall in September - Mason, TN
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.79").

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Average rainfall days in September
Mason, TN

Average rainfall days in September - Mason, TN
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Mason, TN

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

The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Mason, TN

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

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Mason, TN

Average daylight in September / Average sunshine in September - Mason, 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: 9h and 4min

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

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Average sunshine days in September
Mason, TN

Average sunshine days in September - Mason, TN
  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is August (13.7 days).

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Average UV index in September
Mason, TN

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Mason, TN

Average cloud cover in September - Mason, TN
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in September
Mason, TN

Average visibility in September - Mason, 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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Mason, Tennessee, USA

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