September weather forecast
Cleveland, TN

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Weather in September

September marks the arrival of autumn in Cleveland, characterized by a noticeable decrease in daytime temperatures from August to a cooler 81.9°F (27.7°C). The transition from summer to fall is evident as nights become more pleasant with the lowest temperature falling to 61°F (16.1°C). Despite the reduction in daylight hours, outdoor activities remain prominent as the weather continues to be pleasant. September sees the fewest rainfall days and the least amount of rainfall in the year, indicating a significantly drier season. The wind speed slightly picks up, adding a brisk feeling to the cooler autumn days.

Temperature

September's onset in Cleveland brings a negligible change in high-temperatures, falling from a tropical 87.4°F (30.8°C) in August to a moderately hot 81.9°F (27.7°C). In Cleveland, the expected average low-temperature for September is a refreshing 61°F (16.1°C).

Heat index

In September, the average heat index is estimated at a tropical 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

June through November, with an average relative humidity of 75%, are the least humid months.

Rainfall

September is the month with the least rainfall in Cleveland. Rain falls for 11.1 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Cleveland, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:12 am and sunset at 8:05 pm. On the last day of September, in Cleveland, Tennessee, sunrise is at 7:34 am and sunset at 7:24 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the temperature in September in Cleveland?

In September, in Cleveland, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 61°F (16.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the least humid month in Cleveland?

June through November, with an average relative humidity of 75%, are the least humid months in Cleveland.

What is the average humidity in September in Cleveland?

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

What is the driest month in Cleveland?

The month with the least rainfall in Cleveland, Tennessee, is September, when the rain falls for 11.1 days and typically collects 1.3" (33mm) of precipitation.

How much does it rain in Cleveland in September?

In Cleveland, during September, the rain falls for 11.1 days and regularly aggregates up to 1.3" (33mm) of precipitation.

When it does not snow in Cleveland?

In Cleveland, Tennessee, snow does not fall in April through October.

How many hours of daylight does Cleveland have in September?

In Cleveland, Tennessee, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September in Cleveland?

On the first day of September in Cleveland, Tennessee, sunrise is at 7:12 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:24 pm EDT.

How long on average sun shines in September in Cleveland?

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

What is the UV index reading in September in Cleveland?

In September, the average daily maximum UV index in Cleveland, Tennessee, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Cleveland, TN

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

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (46.4°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in September
Cleveland, TN

Average pressure in September - Cleveland, TN
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Cleveland, TN

Average wind speed in September - Cleveland, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in September
Cleveland, TN

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

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).

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Average rainfall in September
Cleveland, TN

Average rainfall in September - Cleveland, TN
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in September
Cleveland, TN

Average rainfall days in September - Cleveland, TN
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).

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Average snowfall in September
Cleveland, TN

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

The month with the highest snowfall is February (0.75").
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
Cleveland, TN

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

The month with the highest number of snowfall days is February (1.7 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
Cleveland, TN

Average daylight in September / Average sunshine in September - Cleveland, 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: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Cleveland, TN

Average sunshine days in September - Cleveland, TN
  • Average sunshine days in September: 16.4 days

The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in September
Cleveland, TN

Average UV index in September - Cleveland, 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
Cleveland, TN

Average cloud cover in September - Cleveland, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Cleveland, TN

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

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

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Cleveland, Tennessee, USA

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