September weather forecastValdeau, TN
September
Weather in September
The first month of the autumn, September, is still a warm month in Valdeau, Tennessee, with an average temperature ranging between max 81.5°F (27.5°C) and min 60.6°F (15.9°C).Temperature
Valdeau experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a hot 87.4°F (30.8°C) in August to a warm 81.5°F (27.5°C). In the month of September, Valdeau's average low-temperature falls to a mild 60.6°F (15.9°C).Heat index
Throughout September, the heat index is calculated to be a hot 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
In Valdeau, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.43" (11mm) of precipitation.Snowfall
In Valdeau, snow does not fall in April through November.Daylight
In Valdeau, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:26 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Valdeau, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valdeau, TN
- Average high temperature in September: 81.5°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 (46°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Valdeau, 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
Valdeau, TN
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Valdeau, 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, October and November (75%).
Average rainfall in September
Valdeau, TN
- Average rainfall in September: 0.43"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Valdeau, TN
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in September
Valdeau, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Valdeau, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Valdeau, TN
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Valdeau, TN
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in September
Valdeau, 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
Valdeau, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Valdeau, 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).
