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
The average high-temperature during September is a warm 82.8°F (28.2°C), almost matching the conditions of the preceding month. Porters Grove, in September, experiences an average temperature of 63.3°F (17.4°C) at night.Heat index
September's heat index is calculated to be a hot 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 11 days and accumulates 1.34" (34mm) of precipitation.Snowfall
In Porters Grove, 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 the month, sunrise is at 6:28 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:40 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Porters Grove, Tennessee, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
Is it hot in Porters Grove during September?
What is the average humidity in September in Porters Grove?
What is the driest month in Porters Grove?
How much does it rain in Porters Grove in September?
When it does not snow in Porters Grove?
How many hours of daylight does Porters Grove have in September?
When is the sunrise / sunset in September in Porters Grove?
How long on average sun shines in September in Porters Grove?
What is the UV index intensity in September in Porters Grove?
Average temperature in September
Porters Grove, TN
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Porters Grove, 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
Porters Grove, TN
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).
Average humidity in September
Porters Grove, 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 (71%).
Average rainfall in September
Porters Grove, TN
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is February (3.5").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Porters Grove, TN
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in September
Porters Grove, TN
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Porters Grove, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.6 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
Porters Grove, 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 48min).
- Average sunshine in September: 9h and 2min
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
Porters Grove, TN
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Porters Grove, TN
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in September
Porters Grove, TN
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Porters Grove, 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).
Porters Grove, Tennessee, USA
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