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January Weather in Redwood, United States

Last updated: June 24, 2025

In January, the average temperature in Redwood, United States hovers around -6°C (22°F). Conditions can vary significantly, with minimum temperatures plummeting to -33°C (-27°F) and occasionally reaching a maximum of 14°C (58°F). Expect 86 mm (3.4 in) of precipitation spread over 12 days, accompanied by a high average humidity of 93%. Be prepared for a truly chilly and damp month!

January Temperature in Redwood

In January in Redwood, the average temperature is -6°C (22°F). The maximum can reach 14°C (58°F) and the minimum can be as low as -33°C (-27°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Redwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Redwood, January typically has an average temperature of -6°C (22°F), with highs reaching up to 14°C (58°F) and lows dropping to around -33°C (-27°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432445765716962523728
Data source: Temperature data for Redwood 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 Redwood

In Redwood in January, the precipitation amount is 86 mm (3.4 in) over a span of 12 days.

January Precipitation Trends in Redwood

The chart displays monthly precipitation patterns in Redwood, 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 Redwood, January typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec8684881301041041371067516111998
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Redwood

In Redwood in January humidity is 93%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable as the damp air clings to your clothing and slows your movements.

January Average Humidity in Redwood

This chart illustrates the average monthly humidity levels in Redwood, 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 Redwood is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Redwood

In Redwood 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 Redwood, you can visit Hourly UV Index in Redwood.

Maximum UV Index Levels in Redwood for January

The chart shows the monthly maximum UV Index (UVI) for Redwood 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 Redwood typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Redwood 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 Redwood Compares to Other Months

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

This table compares monthly weather conditions in Redwood, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)86 mm (3.4 inches)93%low
February Weather-4°C (25°F)84 mm (3.3 inches)93%moderate
March Weather0°C (32°F)88 mm (3.5 inches)86%moderate
April Weather7°C (44°F)130 mm (5.1 inches)82%very high
May Weather14°C (57°F)104 mm (4.1 inches)75%very high
June Weather19°C (66°F)104 mm (4.1 inches)68%very high
July Weather22°C (72°F)137 mm (5.4 inches)69%very high
August Weather21°C (70°F)106 mm (4.2 inches)67%very high
September Weather17°C (62°F)75 mm (3.0 inches)72%high
October Weather11°C (52°F)160 mm (6.3 inches)83%moderate
November Weather3°C (37°F)119 mm (4.7 inches)88%moderate
December Weather-2°C (28°F)98 mm (3.8 inches)89%low

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