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January Weather in Brooklyn, United States

Last updated: June 24, 2025

In Brooklyn, United States, the average temperature in January hovers around -1°C (31°F). Temperatures can vary significantly, with a minimum of -21°C (-6°F) and a maximum reaching 20°C (68°F). Expect about 70 mm (2.7 in) of precipitation spread over 8 days, accompanied by an average humidity of 84%, making this month feel particularly brisk and damp.

January Temperature in Brooklyn

In January, in Brooklyn, the average temperature is -1°C (31°F), with maximums reaching up to 20°C (68°F) and minimums dropping as low as -21°C (-6°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and frigid conditions.

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

The chart illustrates January temperature patterns in Brooklyn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brooklyn, January typically has an average temperature of -1°C (31°F), with highs reaching up to 20°C (68°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec303338485868747366564234
Data source: Temperature data for Brooklyn 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 Brooklyn

In Brooklyn in January, the precipitation amount is 70 mm (2.7 in) spread over 8 days.

January Precipitation Trends in Brooklyn

The chart displays monthly precipitation patterns in Brooklyn, 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 Brooklyn, January typically receives around 70 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec70889512911110216612397135100129
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Brooklyn

In Brooklyn in January humidity is 84%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that seeps through layers of clothing, making outdoor excursions brisk and invigorating, yet challenging for those unaccustomed to such damp conditions.

January Average Humidity in Brooklyn

This chart illustrates the average monthly humidity levels in Brooklyn, 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 Brooklyn is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Brooklyn

In Brooklyn 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 Brooklyn, you can check the information here.

Maximum UV Index Levels in Brooklyn for January

The chart shows the monthly maximum UV Index (UVI) for Brooklyn 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 Brooklyn typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
Data source: Brooklyn 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 Brooklyn Compares to Other Months

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

This table compares monthly weather conditions in Brooklyn, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)70 mm (2.7 inches)84%moderate
February Weather1°C (33°F)88 mm (3.5 inches)84%moderate
March Weather3°C (38°F)94 mm (3.7 inches)82%high
April Weather9°C (48°F)129 mm (5.1 inches)79%very high
May Weather15°C (59°F)111 mm (4.4 inches)75%very high
June Weather20°C (68°F)102 mm (4.0 inches)78%very high
July Weather23°C (74°F)166 mm (6.5 inches)76%very high
August Weather23°C (73°F)123 mm (4.8 inches)76%very high
September Weather19°C (66°F)97 mm (3.8 inches)75%very high
October Weather13°C (56°F)135 mm (5.3 inches)75%high
November Weather6°C (43°F)100 mm (3.9 inches)80%moderate
December Weather1°C (34°F)129 mm (5.1 inches)80%low

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