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 presence records an average high-temperature of a still moderately hot 80.6°F (27°C), closely mirroring August's climate. During the nights in September, an average low-temperature of 60.8°F (16°C) is observed in Cowan, Tennessee.Heat index
In September, the heat index is computed to be 84.2°F (29°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.It is emphasized that the heat index's values are meant for shaded zones with 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', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in September in Cowan, Tennessee, is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 2.05" (52mm) of precipitation.Snowfall
In Cowan, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Cowan, Tennessee, sunrise is at 6:17 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:28 pm CDT.
Sunshine
In Cowan, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Cowan is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Cowan in September?
What is the average humidity in September in Cowan?
What is the driest month in Cowan?
How many days does it rain in September in Cowan?
When it does not snow in Cowan?
What is the average length of the day in September in Cowan?
When is the sunrise / sunset in September in Cowan?
How many hours of sunshine does Cowan have in September?
What is the UV index reading in September in Cowan?
Average temperature in September
Cowan, TN
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (45.3°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in September
Cowan, 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
Cowan, TN
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Cowan, TN
- Average humidity in September: 77%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Cowan, TN
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is February (4.17").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Cowan, TN
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Cowan, TN
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cowan, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cowan, 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: 8h and 2min
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 36min).
Average sunshine days in September
Cowan, TN
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Cowan, 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 and December (UV index 2).
Average cloud cover in September
Cowan, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Cowan, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).
Cowan, Tennessee, USA
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