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April Weather in Trenton, United States

Last updated: June 24, 2025

In Trenton, United States, the average temperature in April hovers around 15°C (60°F). Expect a chilly minimum of -2°C (29°F), while the mercury can rise as high as 31°C (88°F). Be prepared for 147 mm (5.8 in) of precipitation spread across 12 days, with an average humidity level of 81%.

April Temperature in Trenton

In April in Trenton, the average temperature is 15°C (60°F), with maximums reaching 31°C (88°F) and minimums dipping as low as -2°C (29°F). This varied climate makes it essential for travelers to pack layers and be prepared for both warm days and chilly nights.

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 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec404454607178817975634945
Data source: Temperature data for Trenton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Trenton

In Trenton in April, the precipitation amount is 147 mm (5.8 in) over a span of 12 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 147 mm (5.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec10117117814810911312510410311895137
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Trenton

In Trenton in April, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

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.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)101 mm (4.0 inches)86%moderate
February Weather7°C (44°F)171 mm (6.7 inches)85%high
March Weather12°C (54°F)178 mm (7.0 inches)84%high
April Weather15°C (60°F)147 mm (5.8 inches)81%very high
May Weather22°C (71°F)109 mm (4.3 inches)83%extreme
June Weather26°C (78°F)113 mm (4.5 inches)83%extreme
July Weather27°C (81°F)125 mm (4.9 inches)80%extreme
August Weather26°C (79°F)104 mm (4.1 inches)73%very high
September Weather24°C (75°F)103 mm (4.0 inches)70%very high
October Weather17°C (64°F)118 mm (4.6 inches)73%high
November Weather9°C (49°F)95 mm (3.7 inches)85%moderate
December Weather7°C (46°F)137 mm (5.4 inches)88%moderate

Compare Trenton's Climate with Cities Worldwide