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
With the onset of September, the average high-temperature subtly recedes from August's tropical 86.9°F (30.5°C) to a moderately hot 81°F (27.2°C). During September, Harbor Hills witnesses a consistent average low-temperature of 59.9°F (15.5°C).Heat index
In September, the average heat index is estimated at a tropical 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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
The average relative humidity in September in Harbor Hills is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 11.7 days and accumulates 2.32" (59mm) of precipitation.Snowfall
In Harbor Hills, snow does not fall in May through October.Daylight
In September, the average length of the day in Harbor Hills is 12h and 23min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:06 pm. On the last day of September, in Harbor Hills, sunrise is at 7:34 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine in Harbor Hills is 8.5h.UV index
In September, the average daily maximum UV index in Harbor Hills is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the average September temperature in Harbor Hills?
What is the average humidity in September in Harbor Hills?
What is the driest month in Harbor Hills?
How much does it rain in Harbor Hills in September?
When it does not snow in Harbor Hills?
What is the average length of the day in September in Harbor Hills?
When is the sunrise / sunset in September in Harbor Hills?
How long on average sun shines in September in Harbor Hills?
What is the UV index reading in September in Harbor Hills?
Average temperature in September
Harbor Hills, TN
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Harbor Hills, TN
- Average pressure in September: 30.03"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
Harbor Hills, 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
Harbor Hills, TN
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (75%).
Average rainfall in September
Harbor Hills, TN
- Average rainfall in September: 2.32"
The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
Harbor Hills, TN
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Harbor Hills, 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
Harbor Hills, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 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
Harbor Hills, 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 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Harbor Hills, TN
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Harbor 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, February and December (UV index 2).
Average cloud cover in September
Harbor Hills, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Harbor Hills, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Harbor Hills, Tennessee, USA
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