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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 0°C (31°F). You might experience a brisk chill, with minimum temperatures dipping to -23°C (-9°F), while the mercury can rise as high as 18°C (64°F). Expect about 56 mm (2.2 in) of precipitation over 5 days, and be prepared for a relatively high average humidity of 80% during your stay.

January Temperature in Westwood

In January in Westwood, the average temperature is 0°C (31°F). The maximum can reach 18°C (64°F), and the minimum can be as low as -23°C (-9°F). Be prepared for a wide range of temperatures if you're planning to travel 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 0°C (31°F), with highs reaching up to 18°C (64°F) and lows dropping to around -23°C (-9°F).
JanFebMarAprMayJunJulAugSepOctNovDec313346546677797672574438
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 56 mm (2.2 in) over a period of 5 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 56 mm (2.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec5640979321594118126871134733
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 80%. With an average temperature of 0°C (31°F), this humidity feels like an icy blanket enveloping you, making every step outside a challenging endeavor as the cold dampness clings to your skin, leaving you shivering and longing for warmth.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%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.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
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 Weather0°C (31°F)56 mm (2.2 inches)80%moderate
February Weather0°C (33°F)40 mm (1.6 inches)78%moderate
March Weather8°C (47°F)97 mm (3.8 inches)75%high
April Weather12°C (54°F)93 mm (3.7 inches)77%very high
May Weather19°C (66°F)215 mm (8.5 inches)82%very high
June Weather25°C (77°F)94 mm (3.7 inches)83%extreme
July Weather26°C (80°F)118 mm (4.6 inches)81%extreme
August Weather25°C (77°F)126 mm (5.0 inches)78%very high
September Weather22°C (72°F)87 mm (3.4 inches)72%very high
October Weather14°C (57°F)113 mm (4.5 inches)72%high
November Weather7°C (44°F)47 mm (1.8 inches)84%moderate
December Weather3°C (38°F)33 mm (1.3 inches)86%moderate

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