September weather forecast
Purdy, TN

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Weather in September

September, the first month of the autumn in Purdy, is still a warm month, with an average temperature varying between 83.3°F (28.5°C) and 63.5°F (17.5°C).

Temperature

In September, the average high-temperature registers at a warm 83.3°F (28.5°C), nearly identical to August's 88.5°F (31.4°C). An average low-temperature of 63.5°F (17.5°C) marks the month of September.

Heat index

In September, the average heat index is calculated to be a tropical 89.6°F (32°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Realize that the values for the heat index are set for shaded places and 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', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:38 pm CDT.

Sunshine

In Purdy, the average sunshine in September is 9.2h.

UV index

In Purdy, the average daily maximum UV index in September 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: The maximum UV index of 5 during September translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

An average high-temperature, in September, in Purdy, is 83.3°F (28.5°C) and the average low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September in Purdy is 73%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 13.5 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Purdy have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:38 pm CDT.

How many hours of sunshine does Purdy have in September?

In Purdy, the average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Purdy, TN

Average temperature in September - Purdy, TN
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in September: 63.5°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in September
Purdy, TN

Average pressure in September - Purdy, TN
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Purdy, TN

Average wind speed in September - Purdy, TN
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in September
Purdy, TN

Average humidity in September - Purdy, TN
  • Average humidity in September: 73%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Purdy, TN

Average rainfall in September - Purdy, TN
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is February (4.72").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
Purdy, TN

Average rainfall days in September - Purdy, TN
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (10.6 days).

Average snowfall in September
Purdy, TN

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Purdy, TN

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

The months with the highest number of snowfall days are January and February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Purdy, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Purdy, TN

Average sunshine days in September - Purdy, TN
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Purdy, TN

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

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

Average cloud cover in September
Purdy, TN

Average cloud cover in September - Purdy, TN
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in September
Purdy, TN

Average visibility in September - Purdy, 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).

Purdy, Tennessee, USA

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