September weather forecast
Loretto, TN

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Weather in September

September, the first month of the autumn in Loretto, is also a moderately hot month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 82.2°F (27.9°C).

Temperature

In Loretto, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's tropical 87.6°F (30.9°C) to a moderately hot 82.2°F (27.9°C). In September, Loretto's temperature tends to fall to an average low of 63.3°F (17.4°C) during the night.

Heat index

September's average heat index is evaluated at a tropical 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Loretto, in September, during 13.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, in Loretto, there are 164 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

In Loretto, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September in Loretto, sunrise is at 6:22 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:34 pm CDT.

Sunshine

In Loretto, Tennessee, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September in Loretto is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What are the temperatures in Loretto in September?

Loretto in September has an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 63.3°F (17.4°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Loretto?

The average relative humidity in September in Loretto, Tennessee, is 75%.

How much does it rain in Loretto in September?

In Loretto, in September, during 13.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Loretto?

April through October are months without snowfall in Loretto.

How many hours of daylight does Loretto have in September?

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

When is the sunrise / sunset in September in Loretto?

On the first day of September, sunrise is at 6:22 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:34 pm CDT.

How long on average sun shines in September in Loretto?

In Loretto, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Loretto?

The average daily maximum UV index in September in Loretto is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Loretto, TN

Average temperature in September - Loretto, TN
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (46.6°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in September
Loretto, TN

Average pressure in September - Loretto, TN
  • Average pressure in September: 30.02"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).

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Average wind speed in September
Loretto, TN

Average wind speed in September - Loretto, TN
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).

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Average humidity in September
Loretto, TN

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

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Loretto, TN

Average rainfall in September - Loretto, TN
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is November (2.32").

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Average rainfall days in September
Loretto, TN

Average rainfall days in September - Loretto, TN
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in September
Loretto, TN

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

The month with the highest snowfall is February (0.71").
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
Loretto, TN

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

The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Loretto, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Loretto, TN

Average sunshine days in September - Loretto, TN
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in September
Loretto, TN

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Loretto, TN

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Loretto, TN

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

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