September weather forecast
Brainerd, TN

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Weather in September

September, the first month of the autumn in Brainerd, is also a moderately hot month, with an average temperature fluctuating between 61.2°F (16.2°C) and 82.2°F (27.9°C).

Temperature

Brainerd marks the start of September with an average high-temperature of a warm 82.2°F (27.9°C), hinting at a slight fluctuation from August's 87.4°F (30.8°C). During the nights in September, the temperature in Brainerd averages to a comfortable 61.2°F (16.2°C).

Heat index

The average heat index in September is evaluated at a hot 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 2.48" (63mm) of precipitation.

Snowfall

May through October are months without snowfall in Brainerd.

Daylight

In Brainerd, the average length of the day in September is 12h and 23min.
On the first day of September in Brainerd, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

Sunshine

In Brainerd, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Brainerd is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Take precautions - Protection against skin and eye damage is obliged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the usual temperature for Brainerd in September?

In Brainerd, in September, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 61.2°F (16.2°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Brainerd?

The average relative humidity in September in Brainerd is 75%.

What is the driest month in Brainerd?

September is the month with the least rainfall in Brainerd, Tennessee. Rain falls for 12.4 days and accumulates 2.48" (63mm) of precipitation.

How much does it rain in Brainerd in September?

In Brainerd, during September, the rain falls for 12.4 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow in Brainerd?

May through October are months without snowfall in Brainerd, Tennessee.

How many hours of daylight does Brainerd have in September?

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

What time are sunrise and sunset in September in Brainerd?

In September, on the first day of the month, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, in Brainerd, Tennessee, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Brainerd have in September?

In September, the average sunshine duration in Brainerd, Tennessee, is 8.5h.

What is the UV index intensity in September in Brainerd?

The average daily maximum UV index in September in Brainerd, Tennessee, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Brainerd, TN

Average temperature in September - Brainerd, TN
  • Average high temperature in September: 82.2°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 (46.9°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Brainerd, TN

Average pressure in September - Brainerd, 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 (29.98"Hg).

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Average wind speed in September
Brainerd, TN

Average wind speed in September - Brainerd, TN
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

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Average humidity in September
Brainerd, TN

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

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Brainerd, TN

Average rainfall in September - Brainerd, TN
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (2.48").

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Average rainfall days in September
Brainerd, TN

Average rainfall days in September - Brainerd, TN
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in September
Brainerd, TN

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

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

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Average snowfall days in September
Brainerd, TN

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

The month with the highest number of snowfall days is January (2.9 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
Brainerd, TN

Average daylight in September / Average sunshine in September - Brainerd, 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Brainerd, TN

Average sunshine days in September - Brainerd, TN
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9 days).

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Average UV index in September
Brainerd, TN

Average UV index in September - Brainerd, 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 and December (UV index 2).

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Average cloud cover in September
Brainerd, TN

Average cloud cover in September - Brainerd, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Brainerd, TN

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

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

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Brainerd, Tennessee, USA

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