September weather forecast
Hillsboro, TN

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Weather in September

September, the first month of the autumn in Hillsboro, is also a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 80.6°F (27°C).

Temperature

As August transitions into September, Hillsboro records an average high-temperature of a still warm 80.6°F (27°C), showing a gentle shift from the preceding month. Hillsboro's temperature in September lowers to a consistent average of 61°F (16.1°C) during the nights.

Heat index

During September, the heat index is calculated to be 84.2°F (29°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In September, the average relative humidity in Hillsboro is 76%.

Rainfall

September is the month with the least rainfall in Hillsboro, Tennessee. Rain falls for 14.1 days and accumulates 2.28" (58mm) of precipitation.

Snowfall

In Hillsboro, snow does not fall in May through October.

Daylight

In Hillsboro, the average length of the day in September is 12h and 23min.
On the first day of September in Hillsboro, sunrise is at 6:16 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:28 pm CDT.

Sunshine

The average sunshine in September in Hillsboro is 8.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What are September temperatures in Hillsboro?

The average high-temperature, in September, in Hillsboro, is 80.6°F (27°C), while the average low-temperature is 61°F (16.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is calculated to be 84.2°F (29°C).

What is the average humidity in September in Hillsboro?

In September, the average relative humidity in Hillsboro is 76%.

What is the driest month in Hillsboro?

The month with the least rainfall in Hillsboro is September, when the rain falls for 14.1 days and typically collects 2.28" (58mm) of precipitation.

How much does it rain in Hillsboro in September?

In September, in Hillsboro, Tennessee, the rain falls for 14.1 days. Throughout September, 2.28" (58mm) of precipitation is accumulated.

When it does not snow in Hillsboro?

May through October are months without snowfall.

How many hours of daylight does Hillsboro have in September?

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

When are sunrise and sunset in September in Hillsboro?

On the first day of September, sunrise is at 6:16 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:28 pm CDT.

How long on average sun shines in September in Hillsboro?

In September, the average sunshine duration is 8.3h.

How high is the UV index in September in Hillsboro?

In Hillsboro, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Hillsboro, TN

Average temperature in September - Hillsboro, TN
  • Average high temperature in September: 80.6°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in September
Hillsboro, TN

Average pressure in September - Hillsboro, 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
Hillsboro, TN

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

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

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Average humidity in September
Hillsboro, TN

Average humidity in September - Hillsboro, TN
  • Average humidity in September: 76%

The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in September
Hillsboro, TN

Average rainfall in September - Hillsboro, TN
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is September (2.28").

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Average rainfall days in September
Hillsboro, TN

Average rainfall days in September - Hillsboro, TN
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.3 days).

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Average snowfall in September
Hillsboro, TN

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Hillsboro, TN

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

The month with the highest number of snowfall days is January (5.2 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
Hillsboro, TN

Average daylight in September / Average sunshine in September - Hillsboro, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in September
Hillsboro, TN

Average sunshine days in September - Hillsboro, TN
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (8.1 days).

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Average UV index in September
Hillsboro, TN

Average UV index in September - Hillsboro, 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
Hillsboro, TN

Average cloud cover in September - Hillsboro, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in September
Hillsboro, TN

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

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

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Hillsboro, Tennessee, USA

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