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October Weather in Trenton, United States

Last updated: June 24, 2025

In October, the average temperature in Trenton, United States hovers around 15°C (60°F). However, be prepared for fluctuations, as temperatures can dip to a chilly -3°C (27°F) or soar up to a sweltering 34°C (94°F). During this month, you can expect 110 mm (4.3 in) of precipitation spread across about 10 days, all while enjoying a relatively high average humidity of 79%.

October Temperature in Trenton

In October in Trenton, the average temperature is 15°C (60°F), with maximums reaching up to 34°C (94°F) and minimums dipping as low as -3°C (27°F).

Travelers should be prepared for a wide range of temperatures, making layering essential for comfort during their stay.

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 15°C (60°F), with highs reaching up to 34°C (94°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec333648566877807773604540
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.

October Precipitation in Trenton

In Trenton in October, the precipitation amount is 110 mm (4.3 in) over a period of 10 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 110 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec828714114417010092122591107971
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Trenton

In Trenton in October, humidity is 79%. With an average temperature of 15°C (60°F), this humidity feels like a warm, enveloping blanket that can make traveling feel muggy and a bit stifling, requiring frequent breaks to stay refreshed and hydrated.

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.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
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 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 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 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111110109753
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.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)82 mm (3.2 inches)84%moderate
February Weather2°C (37°F)87 mm (3.4 inches)82%moderate
March Weather9°C (48°F)141 mm (5.6 inches)84%high
April Weather13°C (56°F)144 mm (5.7 inches)83%very high
May Weather20°C (68°F)170 mm (6.7 inches)80%extreme
June Weather25°C (78°F)100 mm (3.9 inches)83%extreme
July Weather27°C (80°F)92 mm (3.6 inches)82%very high
August Weather25°C (77°F)122 mm (4.8 inches)82%very high
September Weather23°C (73°F)59 mm (2.3 inches)79%very high
October Weather15°C (60°F)110 mm (4.3 inches)79%high
November Weather7°C (45°F)78 mm (3.1 inches)88%moderate
December Weather4°C (40°F)71 mm (2.8 inches)87%moderate

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