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 high-temperature average in September for Hornsby is a moderately hot 83.5°F (28.6°C), staying closely aligned with August's conditions. An average low-temperature of 63.5°F (17.5°C) is expected in Hornsby during September.Heat index
September's heat index is estimated at a hot 89.6°F (32°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 highly critical to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 14.3 days and accumulates 2.05" (52mm) of precipitation.Snowfall
April through October are months without snowfall in Hornsby.Daylight
In Hornsby, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:21 pm. On the last day of September, in Hornsby, sunrise is at 6:49 am and sunset at 6:40 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Hornsby, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
How hot is September in Hornsby?
What is the average humidity in September in Hornsby?
What is the driest month in Hornsby?
How many days does it rain in September in Hornsby?
When it does not snow in Hornsby?
What is the average length of the day in September in Hornsby?
When is the sunrise / sunset in September in Hornsby?
How many hours of sunshine does Hornsby have in September?
What is the UV index intensity in September in Hornsby?
Average temperature in September
Hornsby, TN
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Hornsby, 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 (29.95"Hg).
Average wind speed in September
Hornsby, TN
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Hornsby, TN
- Average humidity in September: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Hornsby, TN
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is February (4.53").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Hornsby, TN
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in September
Hornsby, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Hornsby, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.2 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hornsby, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Hornsby, TN
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Hornsby, TN
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Hornsby, TN
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in September
Hornsby, 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).
Hornsby, Tennessee, USA
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