Trenton Weather in September

What's the weather like in Trenton (Nebraska) in September 2025?

The climate in Trenton during September can be summarized as warm and reasonably dry.

September is in the fall / autumn in Trenton and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 10°C (50°F) is normal.

Trenton weather averages (imperial / metric)
Daytime temperature 26.3°C 79.3°F
Nightly temperature 9.9°C 49.8°F
Average temperature 18.1°C 64.6°F
Daily sunshine 9.1 hrs
Avg rainfall 39 mm 1.5 ins
Rainy days 7 days
Sea temperature 18.3°C 64.9°F
Humidity 62%
Windspeed 18.7kph 12 mph

On average September is the 6th wettest month of the year in Trenton with around 39mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

September temperatures in Trenton

Trenton average temperature in September

September rainfall

Trenton average rain in September

September hourly sunshine

Trenton average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Trenton in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Trenton weather stats

Trenton weather statistics
Hottest month: July 32.4°C 90.3°F
Driest month: January 11mm 0.4ins
Sunniest month: July 11.8hrs
Coldest month: January 3.9°C 39°F
Wettest month: May 85mm 3.3ins
Map showing location of Trenton (40.17555, -101.01294) Trenton map pin © Google

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