September weather forecast
Merry Oaks, TN

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Weather in September

September, the first month of the autumn in Merry Oaks, is also a moderately hot month, with an average temperature fluctuating between 81.5°F (27.5°C) and 62.8°F (17.1°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a tropical 87.4°F (30.8°C) in August to a warm 81.5°F (27.5°C). The low-temperature averages to a refreshing 62.8°F (17.1°C) during the nights of September.

Heat index

September's average heat index is evaluated at a tropical 86°F (30°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

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

Rainfall

In Merry Oaks, Tennessee, in September, during 13.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 169.9 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

In Merry Oaks, Tennessee, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:31 pm CDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In Merry Oaks, 81.5°F (27.5°C) is the average high-temperature and 62.8°F (17.1°C) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How many days does it rain in September?

In Merry Oaks, during September, the rain falls for 13.4 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow?

In Merry Oaks, snow does not fall in May through October.

How many hours of daylight does Merry Oaks have in September?

The average day length in September is 12h and 24min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:31 pm CDT.

How many hours of sunshine does Merry Oaks have in September?

In Merry Oaks, the average sunshine duration in September is 8.6h.

What is the UV index intensity in September in Merry Oaks?

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

Average temperature in September - Merry Oaks, TN
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in September: 62.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in September
Merry Oaks, TN

Average pressure in September - Merry Oaks, 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).

Average wind speed in September
Merry Oaks, TN

Average wind speed in September - Merry Oaks, TN
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September
Merry Oaks, TN

Average humidity in September - Merry Oaks, TN
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Merry Oaks, TN

Average rainfall in September - Merry Oaks, TN
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in September
Merry Oaks, TN

Average rainfall days in September - Merry Oaks, TN
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in September
Merry Oaks, TN

Average snowfall in September - Merry Oaks, TN
  • Average snowfall in September: 0"

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

Average snowfall days in September
Merry Oaks, TN

Average snowfall days in September - Merry Oaks, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.7 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
Merry Oaks, TN

Average daylight in September / Average sunshine in September - Merry Oaks, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in September
Merry Oaks, TN

Average sunshine days in September - Merry Oaks, TN
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (9.4 days).

Average UV index in September
Merry Oaks, TN

Average UV index in September - Merry Oaks, 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).

Average cloud cover in September
Merry Oaks, TN

Average cloud cover in September - Merry Oaks, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).

Average visibility in September
Merry Oaks, TN

Average visibility in September - Merry Oaks, 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).

Merry Oaks, Tennessee, USA

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