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
September brings a slight decrease in the average high-temperature, shifting from a hot 87.1°F (30.6°C) in August to a warm 81.3°F (27.4°C). During September, the nighttime temperature averages to a moderate 60.1°F (15.6°C).Heat index
The heat index for September is evaluated at a hot 86°F (30°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Know that the heat index computations account for shaded terrains and slight winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 12.7 days and accumulates 2.36" (60mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Haletown, Tennessee, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:27 pm CDT.
Sunshine
The average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Around midday, solar radiation is most harmful; hence, exposure should be limited. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Haletown in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Haletown have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Haletown, TN
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.7°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Haletown, 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 (29.98"Hg).
Average wind speed in September
Haletown, TN
- Average wind speed in September: 4.2mph
The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in September
Haletown, TN
- Average humidity in September: 77%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Haletown, TN
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is September (2.36").
Average rainfall days in September
Haletown, TN
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in September
Haletown, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Haletown, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Haletown, 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: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Haletown, TN
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Haletown, 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 and December (UV index 2).
Average cloud cover in September
Haletown, TN
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 33).
Average visibility in September
Haletown, TN
- Average visibility in September: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Haletown, Tennessee, USA
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