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January Weather in Westwood, United States

Last updated: June 24, 2025

In January, the average temperature in Westwood, United States hovers around -3°C (27°F), with lows plummeting to -25°C (-12°F) and highs reaching up to 15°C (60°F). Expect 74 mm (2.9 in) of precipitation spread over 12 days, contributing to an average humidity of 87%. Bundle up and be prepared for a mix of chilly and occasionally pleasant days!

January Temperature in Westwood

In January in Westwood, the average temperature is -3°C (27°F). Maximum temperatures can reach 15°C (60°F), while minimums can drop as low as -25°C (-12°F). It is advisable to pack warm clothing and prepare for wide temperature fluctuations when traveling to Westwood during this month.

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

The chart illustrates January temperature patterns in Westwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westwood, January typically has an average temperature of -3°C (27°F), with highs reaching up to 15°C (60°F) and lows dropping to around -25°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec272837476070747266543933
Data source: Temperature data for Westwood 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 Westwood

In Westwood in January, the precipitation amount is 74 mm (2.9 in) over a span of 12 days.

January Precipitation Trends in Westwood

The chart displays monthly precipitation patterns in Westwood, 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 Westwood, January typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7475869915813111183881417266
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Westwood

In Westwood in January humidity is 87%. With an average temperature of -3°C (27°F), this humidity feels like an icy blanket that wraps around you, making outdoor activities challenging as the cold air mingles with the dampness, leaving travelers feeling chilled to the bone even in short bursts outside.

January Average Humidity in Westwood

This chart illustrates the average monthly humidity levels in Westwood, 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 Westwood is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%87%82%81%78%79%80%82%87%86%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Westwood

In Westwood 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 Westwood, you can check the information here.

Maximum UV Index Levels in Westwood for January

The chart shows the monthly maximum UV Index (UVI) for Westwood 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 Westwood typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101097532
Data source: Westwood 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 Westwood Compares to Other Months

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

This table compares monthly weather conditions in Westwood, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)74 mm (2.9 inches)87%moderate
February Weather-2°C (28°F)75 mm (3.0 inches)87%moderate
March Weather3°C (38°F)86 mm (3.4 inches)86%high
April Weather8°C (47°F)99 mm (3.9 inches)87%very high
May Weather15°C (60°F)158 mm (6.2 inches)82%very high
June Weather21°C (71°F)131 mm (5.1 inches)81%very high
July Weather24°C (75°F)111 mm (4.4 inches)78%very high
August Weather22°C (72°F)83 mm (3.3 inches)79%very high
September Weather19°C (66°F)88 mm (3.5 inches)79%high
October Weather12°C (54°F)141 mm (5.6 inches)82%moderate
November Weather4°C (39°F)72 mm (2.8 inches)87%moderate
December Weather1°C (33°F)65 mm (2.6 inches)86%low

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