April Weather in Trenton, United States

Last updated: June 24, 2025

In April, the average temperature in Trenton, United States hovers around 6°C (43°F). Expect a chilly minimum of -4°C (24°F) and a mild maximum of 18°C (65°F). During this time, precipitation averages 129 mm (5.1 in) over 13 days, accompanied by a relatively high average humidity of 81%. Prepare accordingly for a mix of weather conditions!

April Temperature in Trenton

In April in Trenton, the average temperature is 6°C (43°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as -4°C (24°F). This variation makes it ideal for travelers to pack layers and be prepared for both mild and chilly conditions.

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

The chart illustrates April 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, April typically has an average temperature of 6°C (43°F), with highs reaching up to 18°C (65°F) and lows dropping to around -4°C (24°F).

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

April Precipitation in Trenton

In Trenton in April, the precipitation amount is 129 mm (5.1 in) over the course of 13 days.

April Precipitation Trends in Trenton

The chart displays monthly precipitation patterns in Trenton, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Trenton, April typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 13 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Trenton

In Trenton in April, humidity is 81%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill enveloping you, making every step outside seem heavier and less inviting for traveling.

April Average Humidity in Trenton

This chart illustrates the average monthly humidity levels in Trenton, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Trenton is approximately 81%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Trenton

In Trenton in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Trenton.

Maximum UV Index Levels in Trenton for April

The chart shows the monthly maximum UV Index (UVI) for Trenton in April, 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 April, the maximum UV index in Trenton typically reaches 7, which falls under the high exposure category.

Data source: Trenton April 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 April 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 April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	98 mm (3.9 inches)	88%	low
February Weather	-3°C (26°F)	90 mm (3.6 inches)	88%	moderate
March Weather	0°C (32°F)	73 mm (2.9 inches)	85%	moderate
April Weather	6°C (43°F)	129 mm (5.1 inches)	81%	high
May Weather	11°C (52°F)	92 mm (3.6 inches)	76%	very high
June Weather	16°C (61°F)	79 mm (3.1 inches)	74%	very high
July Weather	19°C (67°F)	80 mm (3.2 inches)	74%	very high
August Weather	20°C (68°F)	73 mm (2.9 inches)	74%	very high
September Weather	16°C (61°F)	95 mm (3.7 inches)	77%	high
October Weather	11°C (52°F)	107 mm (4.2 inches)	82%	moderate
November Weather	4°C (40°F)	130 mm (5.1 inches)	85%	moderate
December Weather	-1°C (30°F)	138 mm (5.4 inches)	84%	low