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May Weather in Trenton, United States

Last updated: June 24, 2025

In May, the average temperature in Trenton, United States hovers around 25°C (77°F), creating a pleasant atmosphere for visitors and locals alike. However, temperatures can vary significantly, ranging from a chilly 9°C (48°F) to a sweltering 38°C (101°F). Bring your umbrella, as precipitation averages 98 mm (3.9 in) over 9 days, contributing to the region's 75% humidity. Whether you're exploring or relaxing, prepare for a climate that keeps you on your toes!

May Temperature in Trenton

In May in Trenton, the average temperature is 25°C (77°F). Maximums can reach 38°C (101°F), while minimums can dip as low as 9°C (48°F). Pack accordingly for warm days and cooler nights when traveling to Trenton in May.

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

The chart illustrates May 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, May typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (101°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec566365707780818180766459
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.

May Precipitation in Trenton

In Trenton in May, the precipitation amount is 98 mm (3.9 in) spread over a duration of 9 days.

May Precipitation Trends in Trenton

The chart displays monthly precipitation patterns in Trenton, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Trenton, May typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec55673578981701861781267257102
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Trenton

In Trenton in May humidity is 75%. With an average temperature of 25°C (77°F), this humidity feels like a warm blanket, enveloping you and making travel somewhat taxing, as every step can feel heavier and the air thicker, often leading to a desire for shade and cool breezes.

May Average Humidity in Trenton

This chart illustrates the average monthly humidity levels in Trenton, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Trenton is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%78%77%75%76%79%78%83%81%83%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Trenton

In Trenton in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Trenton in May, 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 May, the maximum UV index in Trenton typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111111110975
Data source: Trenton May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (57°F)55 mm (2.2 inches)83%moderate
February Weather17°C (63°F)67 mm (2.6 inches)82%very high
March Weather18°C (65°F)35 mm (1.4 inches)78%very high
April Weather21°C (70°F)78 mm (3.1 inches)77%extreme
May Weather25°C (77°F)98 mm (3.9 inches)75%extreme
June Weather27°C (80°F)170 mm (6.7 inches)76%extreme
July Weather27°C (81°F)186 mm (7.3 inches)79%extreme
August Weather27°C (82°F)178 mm (7.0 inches)78%extreme
September Weather27°C (80°F)126 mm (5.0 inches)83%very high
October Weather24°C (76°F)72 mm (2.8 inches)81%very high
November Weather18°C (64°F)57 mm (2.2 inches)83%high
December Weather15°C (60°F)102 mm (4.0 inches)86%moderate

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