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's weather displays an average high-temperature of a warm 81.9°F (27.7°C), slightly varied from August's 86.4°F (30.2°C). September nights cool down to an average low-temperature of 63.3°F (17.4°C).Heat index
The heat index in September is evaluated at a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Note that heat index values are valued for light wind and location in the shade. 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 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In Wynnburg, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall in Wynnburg. Rain falls for 12.1 days and accumulates 1.65" (42mm) of precipitation.Snowfall
In Wynnburg, snow does not fall in April through October.Daylight
In Wynnburg, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:42 pm CDT.
Sunshine
The average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the usual temperature for Wynnburg in September?
What is the average humidity in September in Wynnburg?
What is the driest month in Wynnburg?
How much does it rain in Wynnburg in September?
When it does not snow in Wynnburg?
How many hours of daylight does Wynnburg have in September?
What time are sunrise and sunset in September in Wynnburg?
How long on average sun shines in September in Wynnburg?
What is the UV index intensity in September in Wynnburg?
Average temperature in September
Wynnburg, TN
- Average high temperature in September: 81.9°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 (43.7°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Wynnburg, 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 (29.94"Hg).
Average wind speed in September
Wynnburg, TN
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Wynnburg, TN
- Average humidity in September: 73%
The months with the highest relative humidity are March, May and August (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Wynnburg, TN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Wynnburg, TN
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Wynnburg, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Wynnburg, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Wynnburg, 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: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Wynnburg, TN
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Wynnburg, TN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Wynnburg, TN
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Wynnburg, 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).
Wynnburg, Tennessee, USA
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