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
In Trenton, entering September brings a subtle temperature decrement, reducing from August's tropical 86°F (30°C) to a warm 80.4°F (26.9°C). September nights cool down to an average low-temperature of 61.3°F (16.3°C).Humidity
In September, the average relative humidity is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.Snowfall
In Trenton, snow does not fall in April through November.Daylight
In Trenton, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:20 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:33 pm CDT.
Sunshine
In Trenton, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Trenton is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Trenton in September?
What is the average humidity in September?
What is the driest month in Trenton?
How much does it rain in September?
When it does not snow in Trenton?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Trenton have in September?
How high is the UV index in September?
Average temperature in September
Trenton, KY
- Average high temperature in September: 80.4°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in September
Trenton, KY
- 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 (29.96"Hg).
Average wind speed in September
Trenton, KY
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Trenton, KY
- Average humidity in September: 75%
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Trenton, KY
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in September
Trenton, KY
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Trenton, KY
- Average snowfall in September: 0"
The months with the highest snowfall are January, March and December (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Trenton, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 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
Trenton, KY
- 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 42min).
- Average sunshine in September: 8h and 5min
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 36min).
Average sunshine days in September
Trenton, KY
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Trenton, KY
- 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, February and December (UV index 2).
Average cloud cover in September
Trenton, KY
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Trenton, KY
- 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).
Trenton, Kentucky, USA
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