October Weather in Trenton, United States

Last updated: June 24, 2025

In October, the average temperature in Trenton, United States hovers around 20°C (68°F). Visitors can expect a minimum chill of 4°C (39°F) and a maximum heat of 35°C (95°F). On average, 71 mm (2.8 in) of precipitation falls over 9 days, accompanied by a notable humidity level of 79%.

October Temperature in Trenton

In October in Trenton, the average temperature is 20°C (68°F). Maximums can reach 35°C (95°F) and minimums can be as low as 4°C (39°F). This weather makes Trenton an ideal destination for travelers looking to enjoy mild days and cooler evenings.

October Weather in Trenton: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Trenton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trenton, October typically has an average temperature of 20°C (68°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Trenton generated using information from the Copernicus Climate Change Service.

October Precipitation in Trenton

In Trenton in October, the precipitation amount is 71 mm (2.8 in) spread over 9 days.

October Precipitation Trends in Trenton

The chart displays monthly precipitation patterns in Trenton, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Trenton, October typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Trenton

In Trenton in October humidity is 79%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities feel more strenuous and prompting the need for frequent breaks and hydration while traveling.

October Average Humidity in Trenton

This chart illustrates the average monthly humidity levels in Trenton, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Trenton is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Trenton

In Trenton in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Trenton.

Maximum UV Index Levels in Trenton for October

The chart shows the monthly maximum UV Index (UVI) for Trenton in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Trenton typically reaches 8, which falls under the very high exposure category.

Data source: Trenton October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in Trenton Compares to Other Months

Weather in Trenton varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Trenton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Trenton, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	75 mm (3.0 inches)	84%	moderate
February Weather	11°C (52°F)	98 mm (3.9 inches)	81%	high
March Weather	12°C (55°F)	67 mm (2.7 inches)	80%	very high
April Weather	17°C (63°F)	114 mm (4.5 inches)	80%	very high
May Weather	22°C (71°F)	127 mm (5.0 inches)	81%	extreme
June Weather	25°C (77°F)	175 mm (6.9 inches)	82%	extreme
July Weather	27°C (80°F)	164 mm (6.5 inches)	83%	extreme
August Weather	26°C (79°F)	204 mm (8.0 inches)	82%	very high
September Weather	24°C (76°F)	199 mm (7.8 inches)	80%	very high
October Weather	20°C (68°F)	71 mm (2.8 inches)	79%	very high
November Weather	12°C (55°F)	103 mm (4.0 inches)	83%	moderate
December Weather	10°C (50°F)	120 mm (4.7 inches)	84%	moderate