Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The commencement of September in Goodlettsville includes a gentle temperature shift, with the average high-temperature dropping a bit from a hot 86.7°F (30.4°C) in August to a moderately hot 81.1°F (27.3°C). Throughout the month of September, Goodlettsville reports a steady low-temperature average of 62.2°F (16.8°C).Heat index
Throughout September, the heat index is appraised at a hot 86°F (30°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In Goodlettsville, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall in Goodlettsville, Tennessee. Rain falls for 14.6 days and accumulates 2.36" (60mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Goodlettsville, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:14 pm. On the last day of September, in Goodlettsville, sunrise is at 6:41 am and sunset at 6:31 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Goodlettsville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Goodlettsville in September?
What is the average humidity in September in Goodlettsville?
What is the driest month in Goodlettsville?
How much does it rain in Goodlettsville in September?
When it does not snow in Goodlettsville?
What is the average length of the day in September in Goodlettsville?
When are sunrise and sunset in September in Goodlettsville?
How many hours of sunshine does Goodlettsville have in September?
What is the UV index intensity in September in Goodlettsville?
Average temperature in September
Goodlettsville, TN
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in September
Goodlettsville, TN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Goodlettsville, TN
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Goodlettsville, TN
- Average humidity in September: 74%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Goodlettsville, TN
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (4.45").
The driest month (with the least rainfall) is September (2.36").
Average rainfall days in September
Goodlettsville, TN
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Goodlettsville, TN
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Goodlettsville, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.2 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
Goodlettsville, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 36min).
Average sunshine days in September
Goodlettsville, TN
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
Goodlettsville, 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
Goodlettsville, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in September
Goodlettsville, 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).
Goodlettsville, Tennessee, USA
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