September weather forecast
Pioneer, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Pioneer, Tennessee, with temperature in the range of an average high of 79.2°F (26.2°C) and an average low of 57.2°F (14°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from 84.9°F (29.4°C) in August to a still moderately hot 79.2°F (26.2°C). Pioneer's nighttime temperature in September demonstrates a noticeable plunge to a mild 57.2°F (14°C).

Humidity

In Pioneer, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall in Pioneer is September, when the rain falls for 12.6 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

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

Daylight

In Pioneer, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 7:09 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:21 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The average high-temperature and low-temperature during September are 79.2°F (26.2°C) and 57.2°F (14°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September in Pioneer is 78%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.89" (48mm) of precipitation.

How many days does it rain in September?

In Pioneer, in September, during 12.6 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Pioneer have in September?

The average day length in September is 12h and 24min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:21 pm EDT.

How long on average sun shines in September?

In Pioneer, the average sunshine duration in September is 8.4h.

What is the UV index intensity in September?

In Pioneer, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
Pioneer, TN

Average temperature in September - Pioneer, TN
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in September
Pioneer, TN

Average pressure in September - Pioneer, 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
Pioneer, TN

Average wind speed in September - Pioneer, TN
  • Average wind speed in September: 3.7mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in September
Pioneer, TN

Average humidity in September - Pioneer, TN
  • Average humidity in September: 78%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).

Average rainfall in September
Pioneer, TN

Average rainfall in September - Pioneer, TN
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Pioneer, TN

Average rainfall days in September - Pioneer, TN
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Pioneer, TN

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

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Pioneer, TN

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

The month with the highest number of snowfall days is January (5.5 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
Pioneer, TN

Average daylight in September / Average sunshine in September - Pioneer, 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 42min).

  • 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 January (Average sunshine: 4h and 30min).

Average sunshine days in September
Pioneer, TN

Average sunshine days in September - Pioneer, TN
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in September
Pioneer, TN

Average UV index in September - Pioneer, 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
Pioneer, TN

Average cloud cover in September - Pioneer, TN
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 32).

Average visibility in September
Pioneer, TN

Average visibility in September - Pioneer, TN
  • Average visibility in September: 5mi

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

Pioneer, Tennessee, USA

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