September weather forecastWinfield, TN

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Winfield, Tennessee, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 78.3°F (25.7°C).

Temperature

The arrival of September correlates with a minor temperature reduction, down from August's warm 84.2°F (29°C) to a still moderately hot 78.3°F (25.7°C). In September, Winfield endures a notable temperature shift from day to night, with lows averaging at a mild 56.5°F (13.6°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

The months with the least rainfall are September and November Rain falls for 13.6 days and accumulates 2.56" (65mm) of rain.

Snowfall

In Winfield, snow does not fall in May through September.

Daylight

The average length of the day in September in Winfield is 12h and 24min.
On the first day of September, sunrise is at 7:09 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 in Winfield is 7.9h.

UV index

In Winfield, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, the average high-temperature and low-temperature are 78.3°F (25.7°C) and 56.5°F (13.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 93.2°F (34°C).

In Winfield, the average relative humidity in September is 79%.

The months with the least rainfall are September and November Rain falls for 13.6 days and accumulates 2.56" (65mm) of rain.

In Winfield, in September, during 13.6 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

May through September are months without snowfall.

In Winfield, in September, it doesn't snow. In October, it regularly snows.

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

In September, on the first day of the month, sunrise is at 7:09 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.

The average sunshine duration in September is 7.9h.

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 the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Winfield, TN

  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (41.9°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in September
Winfield, TN

  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Winfield, TN

  • Average wind speed in September: 4mph

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

Average humidity in September
Winfield, TN

  • Average humidity in September: 79%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is June (77%).

Average rainfall in September
Winfield, TN

  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is February (4.53").
The driest months (with the least rainfall) are September and November (2.56").

Average rainfall days in September
Winfield, TN

  • Average rainfall days in September: 13.6 days

The months with the highest number of rainy days are May and July (18.8 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in September
Winfield, TN

  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Winfield, TN

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 24min

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 42min).

  • Average sunshine in September: 7h and 54min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Winfield, TN

  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in September
Winfield, TN

  • Average UV index in September: 5

The months with the highest UV index are 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
Winfield, TN

  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is June (Cloud cover 35).

Average visibility in September
Winfield, TN

  • Average visibility in September: 5mi

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