September weather forecast
Petros, TN

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Weather in September

September, the first month of the autumn in Petros, is also a moderately hot month, with an average temperature varying between 59°F (15°C) and 80.6°F (27°C).

Temperature

In September, the meteorological conditions change slightly, with the average high-temperature moving from a hot 86.5°F (30.3°C) in August to a warm 80.6°F (27°C). Petros sees a consistent average low-temperature of 59°F (15°C) in September, indicating a substantial decrease from the day's temperature.

Heat index

The heat index for September is calculated to be 84.2°F (29°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. 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 especially crucial for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

In September, the average relative humidity is 76%.

Rainfall

September is the month with the least rainfall in Petros. Rain falls for 12.5 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 7:10 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Petros, records 80.6°F (27°C), while the low-temperature is 59°F (15°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 84.2°F (29°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.85" (47mm) of precipitation.

How much does it rain in September?

In Petros, during September, the rain falls for 12.5 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Petros have in September?

In September, the average day length is 12h and 24min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:10 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

How many hours of sunshine does Petros have in September?

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

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average max. wind speed
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
Petros, TN

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

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in September
Petros, TN

Average pressure in September - Petros, TN
  • Average pressure in September: 30.04"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).

Average wind speed in September
Petros, TN

Average wind speed in September - Petros, TN
  • Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in September
Petros, TN

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

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

Average rainfall in September
Petros, TN

Average rainfall in September - Petros, TN
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Petros, TN

Average rainfall days in September - Petros, TN
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in September
Petros, TN

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

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Petros, TN

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

The month with the highest number of snowfall days is January (5.3 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
Petros, TN

Average daylight in September / Average sunshine in September - Petros, 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 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 January (Average sunshine: 4h and 54min).

Average sunshine days in September
Petros, TN

Average sunshine days in September - Petros, TN
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in September
Petros, TN

Average UV index in September - Petros, 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
Petros, TN

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

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 30).

Average visibility in September
Petros, TN

Average visibility in September - Petros, 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).

Petros, Tennessee, USA

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