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 onset of September brings with it an average high-temperature of a warm 83.7°F (28.7°C), showing a negligible variation from the month before. In Germantown, the average temperature during the nights of September drops to an enjoyable 65.3°F (18.5°C).Heat index
The heat index value during September is appraised at a tropical 89.6°F (32°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Consider that heat index readings are for situations in the shade and light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' 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 influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In September, the average relative humidity in Germantown is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.7 days and typically collects 1.97" (50mm) of precipitation.Snowfall
In Germantown, snow does not fall in April through October.Daylight
In Germantown, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:44 pm CDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Germantown during September?
What is the average humidity in September in Germantown?
What is the driest month in Germantown?
How many days does it rain in September in Germantown?
When it does not snow in Germantown?
What is the average length of the day in September in Germantown?
When are sunrise and sunset in September in Germantown?
How long on average sun shines in September in Germantown?
What is the UV index intensity in September in Germantown?
Average temperature in September
Germantown, TN
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in September
Germantown, 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 (29.94"Hg).
Average wind speed in September
Germantown, TN
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (9mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Germantown, TN
- Average humidity in September: 72%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Germantown, TN
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Germantown, TN
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is October (9.9 days).
Average snowfall in September
Germantown, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Germantown, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Germantown, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Germantown, TN
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Germantown, TN
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Germantown, TN
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and August (Cloud cover 26).
Average visibility in September
Germantown, 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).
Germantown, Tennessee, USA
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