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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a hot 87.3°F (30.7°C) to a warm 81.5°F (27.5°C). Heatherwood Hills records an average nighttime low-temperature of 62.1°F (16.7°C) throughout September.Heat index
In September, the heat index is evaluated at a hot 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In Heatherwood Hills, the average relative humidity in September is 75%.Rainfall
September and November are months with the least rain in Heatherwood Hills when the rain falls for 13.6 days and typically aggregates up to 2.36" (60mm) of rain.Snowfall
In Heatherwood Hills, snow does not fall in May through September.Daylight
In Heatherwood Hills, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:19 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:32 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Heatherwood Hills 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 in Heatherwood Hills?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September in Heatherwood Hills?
How many hours of sunshine does Heatherwood Hills have in September?
How high is the UV index in September?
Average temperature in September
Heatherwood Hills, TN
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 62.1°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Heatherwood Hills, 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
Heatherwood Hills, TN
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Heatherwood Hills, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are October and November (74%).
Average rainfall in September
Heatherwood Hills, TN
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (4.37").
The driest months (with the least rainfall) are September and November (2.36").
Average rainfall days in September
Heatherwood Hills, TN
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (10 days).
Average snowfall in September
Heatherwood Hills, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Heatherwood Hills, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.9 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
Heatherwood Hills, 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 48min).
- Average sunshine in September: 8h and 4min
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
Heatherwood Hills, TN
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
Heatherwood Hills, 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
Heatherwood Hills, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Heatherwood Hills, 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).
Heatherwood Hills, Tennessee, USA
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