January Weather in Trenton

Last updated: March 2, 2024

The weather in Trenton, United States, during January is characterized by an average temperature of -2°C (28°F). Highs can soar to 14°C (57°F), while lows may dip to -20°C (-3°F). Typically, the humidity level in Trenton throughout January hovers around 80%.

-20°C (-3°F)

Minimum temperature

-2°C (28°F)

Average temperature

14°C (57°F)

Maximum temperature

80%

Humidity

Precipitation and Sunshine hours

In January, Trenton averages 56 mm (2.2 inches) of rainfall, typically over the course of 6 rainy days. The month enjoys an average of 9 hours 40 minutes of daylight, with the sun shining for approximately 4 hours 28 minutes each day. Additionally, there is a 31% probability of sunny days during this period.

56 mm (2.2 inches)

Precipitation

6 rainy days

Rainy days

4 hours 28 minutes

Sunshine hours

31%

Chance of sun

UV Index

In January, the UV Index in Trenton reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	0	1	1	2	3	3	3	2	2	1	1	0	0
Exposure	Low				Moderate			Low
Time to burn	45 min				30 min			45 min