Trenton weather in January 2025

Expect 4°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Trenton in January. Check more long-term weather averages for Trenton in January before you book your next holiday to New Jersey in 2025/2026.

  • 4°C maximum daytime temperature in January in Trenton4
    4°C max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in January in Trenton10
    10 days with some rainfall
  • -6°C minimum night-time temperature in January in Trenton-6
    -6°C min night temperature
  • 10 hours of daylight per day in January in Trenton10
    10 hours of daylight per day
  • No heat & humidity in January in Trenton0
    No heat & humidity
  • 81 mm monthly rainfall in January in Trenton81
    81 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Trenton2
    2 (Low) UV index

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The January weather guide for New Jersey (Trenton) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How cold is it in Trenton in January?

Daytime temperatures usually reach 4°C in Trenton in January, falling to -6°C at night.

How sunny is it in Trenton in January?

There are normally 5 hours of bright sunshine each day in Trenton in January - that's 54% of daylight hours.

Does it rain in Trenton in January?

There are usually 10 days with some rain in Trenton in January and the average monthly rainfall is 81mm. Rain may fall as snow in this month.

Trenton January sunrise & sunset times

Browse the sunrise and sunset times for Trenton in January 2025. Select a month to view Trenton sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:21 16:44
Thursday, 16th January 2025 07:19 16:59
Friday, 31st January 2025 07:08 17:17

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