September weather forecastChewalla, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Chewalla, Tennessee, with an average temperature ranging between max 84°F (28.9°C) and min 63.7°F (17.6°C).Temperature
The high-temperature average in September for Chewalla is a moderately hot 84°F (28.9°C), staying closely aligned with August's conditions. Chewalla records an average low of 63.7°F (17.6°C) throughout the nights in September.Heat index
For September, the heat index is evaluated at a tropical 91.4°F (33°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.The standards for the heat index are set for locations in shade and under light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to 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 Chewalla, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall in Chewalla, Tennessee, is September, when the rain falls for 13.5 days and typically collects 2.01" (51mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Chewalla is 12h and 23min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of September, in Chewalla, Tennessee, sunrise is at 6:49 am and sunset at 6:39 pm CDT.
Sunshine
In Chewalla, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Chewalla is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chewalla, TN
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Chewalla, 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 (29.96"Hg).
Average wind speed in September
Chewalla, TN
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Chewalla, TN
- Average humidity in September: 74%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Chewalla, TN
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is February (4.69").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Chewalla, TN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Chewalla, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Chewalla, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Chewalla, 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: 9h and 0min
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
Chewalla, TN
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Chewalla, TN
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Chewalla, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility in September
Chewalla, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and May (5mi).
