July Weather in Trenton, United States

Last updated: June 24, 2025

In July, the average temperature in Trenton, United States hovers around 26°C (78°F), with a minimal drop to 12°C (54°F) and soaring to a maximum of 39°C (102°F). Expect 73 mm (2.9 in) of precipitation spread over 11 days, contributing to a relatively high average humidity of 77%. This combination creates a warm, albeit slightly damp atmosphere perfect for exploration!

July Temperature in Trenton

In July in Trenton, the average temperature is 26°C (78°F). Maximum temperatures can reach 39°C (102°F), while minimum temperatures can drop to as low as 12°C (54°F). Travelers should be prepared for warm days and cooler nights.

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

The chart illustrates July 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, July typically has an average temperature of 26°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 12°C (54°F).

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

July Precipitation in Trenton

In Trenton in July, the precipitation amount is 73 mm (2.9 in), spread over 11 days.

July Precipitation Trends in Trenton

The chart displays monthly precipitation patterns in Trenton, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Trenton, July typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Trenton

In Trenton in July, humidity is 77%. With an average temperature of 26°C (78°F), this humidity feels like an inviting embrace that can quickly fatigue travelers, making every step feel heavier and each breath a reminder of the warm, moist air surrounding them.

July Average Humidity in Trenton

This chart illustrates the average monthly humidity levels in Trenton, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Trenton is approximately 77%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Trenton

In Trenton in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Trenton.

Maximum UV Index Levels in Trenton for July

The chart shows the monthly maximum UV Index (UVI) for Trenton in July, 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 July, the maximum UV index in Trenton typically reaches 11, which falls under the extreme exposure category.

Data source: Trenton July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	17 mm (0.7 inches)	73%	moderate
February Weather	-2°C (29°F)	16 mm (0.6 inches)	80%	moderate
March Weather	6°C (42°F)	66 mm (2.6 inches)	64%	high
April Weather	10°C (50°F)	40 mm (1.6 inches)	64%	very high
May Weather	16°C (61°F)	122 mm (4.8 inches)	76%	very high
June Weather	24°C (75°F)	55 mm (2.2 inches)	79%	extreme
July Weather	26°C (78°F)	73 mm (2.9 inches)	77%	extreme
August Weather	24°C (75°F)	65 mm (2.6 inches)	79%	very high
September Weather	21°C (69°F)	53 mm (2.1 inches)	70%	very high
October Weather	11°C (52°F)	40 mm (1.6 inches)	64%	high
November Weather	6°C (42°F)	15 mm (0.6 inches)	75%	moderate
December Weather	1°C (34°F)	21 mm (0.8 inches)	78%	moderate