September weather forecast
Caffey, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Caffey, Tennessee, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 63.7°F (17.6°C).

Temperature

In September, Caffey experiences a minor shift in meteorological conditions with average high-temperatures marked at a moderately hot 84°F (28.9°C), closely mirroring the climate in August. In Caffey, the average low-temperature during the month of September is an enjoyable 63.7°F (17.6°C).

Heat index

September's average heat index is evaluated at a tropical 91.4°F (33°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

In Caffey, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

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

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Caffey in September?

The high-temperature during September is 84°F (28.9°C) and the low-temperature is 63.7°F (17.6°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 2.01" (51mm) of precipitation.

How many days does it rain in September?

In Caffey, during September, the rain falls for 13.5 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow?

April through October are months without snowfall in Caffey.

What is the average length of the day in September in Caffey?

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

What time are sunrise and sunset in September?

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.

How long on average sun shines in September?

In September, the average sunshine duration is 9h.

What is the UV index reading in September in Caffey?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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
Caffey, TN

Average temperature in September - Caffey, TN
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in September
Caffey, TN

Average pressure in September - Caffey, 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
Caffey, TN

Average wind speed in September - Caffey, TN
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Caffey, TN

Average humidity in September - Caffey, TN
  • Average humidity in September: 74%

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

Average rainfall in September
Caffey, TN

Average rainfall in September - Caffey, TN
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is February (4.69").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in September
Caffey, TN

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

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in September
Caffey, TN

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

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Caffey, TN

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

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

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

Average daylight in September / Average sunshine in September - Caffey, 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 0min

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).

Average sunshine days in September
Caffey, TN

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

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September
Caffey, TN

Average UV index in September - Caffey, 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
Caffey, TN

Average cloud cover in September - Caffey, TN
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 30).

Average visibility in September
Caffey, TN

Average visibility in September - Caffey, TN
  • Average visibility in September: 6mi

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

Caffey, Tennessee, USA

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