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
A modest decline in the average high-temperature is seen during September, decreasing from a tropical 88.3°F (31.3°C) in August to a moderately hot 80.6°F (27°C). In September, the average low-temperature records at a moderate 59.2°F (15.1°C) during the nights.Heat index
Throughout September, the heat index is estimated at 82.4°F (28°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Understand that the heat index values take into account shaded locations and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In September, the average relative humidity is 55%.Rainfall
In Trenton, during September, the rain falls for 9.4 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 103 rainfall days, and 15.94" (405mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:15 pm. On the last day of September, in Trenton, sunrise is at 7:40 am and sunset at 7:27 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Trenton?
What is the average humidity in September?
How much does it rain in Trenton in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Trenton have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Trenton have in September?
What is the UV index reading in September?
Average temperature in September
Trenton, NE
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in September: 59.2°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 (23.4°F).
Average pressure in September
Trenton, NE
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Trenton, NE
- Average wind speed in September: 10.6mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in September
Trenton, NE
- Average humidity in September: 55%
The month with the highest relative humidity is January (68%).
The months with the lowest relative humidity are July and October (54%).
Average rainfall in September
Trenton, NE
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Trenton, NE
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in September
Trenton, NE
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Trenton, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Trenton, NE
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Trenton, NE
- Average sunshine days in September: 17.1 days
The months with the most sunshine days are January and November (24.3 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in September
Trenton, NE
- 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 January, February, November and December (UV index 2).
Average cloud cover in September
Trenton, NE
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in September
Trenton, NE
- 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, Nebraska, USA
Weather forecast for your location
2. Allow the app to use your location