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 September's arrival, Brownsville's weather records an average high-temperature of a warm 82.9°F (28.3°C), marking little difference from August's 86.7°F (30.4°C). During the nights in September, an average low-temperature of 63.9°F (17.7°C) is observed in Brownsville.Heat index
The heat index value for September is estimated at a tropical 89.6°F (32°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The average relative humidity in September in Brownsville, Tennessee, is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.1 days and typically collects 1.18" (30mm) of precipitation.Snowfall
In Brownsville, snow does not fall in April through October.Daylight
In September, the average length of the day in Brownsville is 12h and 23min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:23 pm. On the last day of September, in Brownsville, Tennessee, sunrise is at 6:51 am and sunset at 6:41 pm CDT.
Sunshine
In Brownsville, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Brownsville is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To protect against the Sun's most potent rays, avoid direct exposure around midday. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
How hot is September in Brownsville?
What is the average humidity in September in Brownsville?
What is the driest month in Brownsville?
How many days does it rain in September in Brownsville?
When it does not snow in Brownsville?
How many hours of daylight does Brownsville have in September?
When are sunrise and sunset in September in Brownsville?
How many hours of sunshine does Brownsville have in September?
What is the UV index reading in September in Brownsville?
Average temperature in September
Brownsville, TN
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.7°F).
- Average low temperature in September: 63.9°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 (32°F).
Average pressure in September
Brownsville, 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
Brownsville, TN
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).
Average humidity in September
Brownsville, TN
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Brownsville, TN
- Average rainfall in September: 1.18"
The wettest months (with the highest rainfall) are April and December (2.91").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in September
Brownsville, TN
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Brownsville, 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
Brownsville, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.3 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
Brownsville, 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 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
Brownsville, TN
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (12 days).
Average UV index in September
Brownsville, 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
Brownsville, TN
- Average cloud cover in September: 27
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
Brownsville, 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).
Brownsville, Tennessee, USA
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