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January Weather in Grand Rapids, United States

Last updated: June 24, 2025

In January, the average temperature in Grand Rapids, United States hovers around -12°C (11°F). Expect chilly extremes, with minimums plummeting to -36°C (-32°F) and maximums peaking at 5°C (41°F). During this month, precipitation amounts to 22 mm (0.8 in) over approximately 6 days, accompanied by a high average humidity of 92%.

January Temperature in Grand Rapids

In January in Grand Rapids, the average temperature is -12°C (11°F). Maximum temperatures can reach 5°C (41°F), while minimums can plummet to -36°C (-32°F). Travelers should be prepared for extreme cold and pack accordingly to ensure a comfortable visit.

January Weather in Grand Rapids: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Grand Rapids, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grand Rapids, January typically has an average temperature of -12°C (11°F), with highs reaching up to 5°C (41°F) and lows dropping to around -36°C (-32°F).
JanFebMarAprMayJunJulAugSepOctNovDec101027375365706659442817
Data source: Temperature data for Grand Rapids 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 Grand Rapids

In Grand Rapids in January, the total precipitation amount is 22 mm (0.8 in) over the course of 6 days.

January Precipitation Trends in Grand Rapids

The chart displays monthly precipitation patterns in Grand Rapids, 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 Grand Rapids, January typically receives around 22 mm (0.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec222634616085107861051033352
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Grand Rapids

In Grand Rapids in January humidity is 92%. With an average temperature of -12°C (11°F), this humidity feels like a biting chill that makes traveling outdoors quite uncomfortable, as the dampness seeps into your clothes and chills you to the bone.

January Average Humidity in Grand Rapids

This chart illustrates the average monthly humidity levels in Grand Rapids, 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 Grand Rapids is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%88%83%76%76%76%77%77%82%88%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Grand Rapids

In Grand Rapids in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Grand Rapids, you can visit Hourly UV Index in Grand Rapids.

Maximum UV Index Levels in Grand Rapids for January

The chart shows the monthly maximum UV Index (UVI) for Grand Rapids 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 Grand Rapids typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Grand Rapids 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 Grand Rapids Compares to Other Months

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

This table compares monthly weather conditions in Grand Rapids, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-12°C (11°F)22 mm (0.8 inches)92%low
February Weather-12°C (11°F)26 mm (1.0 inches)93%moderate
March Weather-3°C (27°F)34 mm (1.3 inches)88%moderate
April Weather3°C (38°F)61 mm (2.4 inches)83%high
May Weather12°C (53°F)60 mm (2.4 inches)76%very high
June Weather18°C (65°F)85 mm (3.4 inches)76%very high
July Weather21°C (70°F)107 mm (4.2 inches)76%very high
August Weather19°C (67°F)86 mm (3.4 inches)77%very high
September Weather15°C (59°F)105 mm (4.1 inches)77%high
October Weather7°C (44°F)103 mm (4.1 inches)82%moderate
November Weather-2°C (28°F)33 mm (1.3 inches)87%moderate
December Weather-8°C (18°F)52 mm (2.0 inches)89%low

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