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January Weather in Hackensack, United States

Last updated: June 24, 2025

In Hackensack, United States, the average temperature in January hovers at 0°C (33°F). Expect chilly days, with temperatures ranging from a minimum of -18°C (1°F) to a maximum of 18°C (65°F). During this month, precipitation totals around 69 mm (2.7 in), spread over approximately 8 days. With an average humidity of 84%, prepare for a crisp, damp climate!

January Temperature in Hackensack

In January in Hackensack, the average temperature is 0°C (33°F). Maximum temperatures can reach 18°C (65°F), while the minimum can drop as low as -18°C (1°F). Be prepared for a wide range of temperatures, bringing layers to stay comfortable during your travels.

January Weather in Hackensack: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hackensack, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hackensack, January typically has an average temperature of 0°C (33°F), with highs reaching up to 18°C (65°F) and lows dropping to around -18°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec323540506170777568594537
Data source: Temperature data for Hackensack 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.

January Precipitation in Hackensack

In Hackensack in January, the precipitation amount is 69 mm (2.7 in) that falls over a period of 8 days.

January Precipitation Trends in Hackensack

The chart displays monthly precipitation patterns in Hackensack, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Hackensack, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec6998931141219515012910613586109
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Hackensack

In Hackensack in January humidity is 84%. With average temperature 0°C (33°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less enjoyable and travel plans challenging.

January Average Humidity in Hackensack

This chart illustrates the average monthly humidity levels in Hackensack, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Hackensack is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Hackensack

In Hackensack in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Hackensack, you can check the information here.

Maximum UV Index Levels in Hackensack for January

The chart shows the monthly maximum UV Index (UVI) for Hackensack in January, 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 January, the maximum UV index in Hackensack typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Hackensack January 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 January Weather in Hackensack Compares to Other Months

Weather in Hackensack varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hackensack, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hackensack, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)69 mm (2.7 inches)84%moderate
February Weather2°C (35°F)98 mm (3.9 inches)82%moderate
March Weather5°C (41°F)93 mm (3.7 inches)81%high
April Weather10°C (51°F)114 mm (4.5 inches)78%very high
May Weather16°C (61°F)121 mm (4.8 inches)69%very high
June Weather21°C (71°F)95 mm (3.7 inches)69%very high
July Weather25°C (77°F)149 mm (5.9 inches)62%very high
August Weather24°C (75°F)129 mm (5.1 inches)65%very high
September Weather20°C (69°F)106 mm (4.2 inches)68%very high
October Weather15°C (59°F)135 mm (5.3 inches)74%high
November Weather7°C (45°F)86 mm (3.4 inches)82%moderate
December Weather3°C (37°F)109 mm (4.3 inches)80%low

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