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), with a minimum dip of -20°C (-4°F) and a maximum rise to 12°C (54°F). Expect 162 mm (6.4 in) of precipitation spread across 11 days, accompanied by high humidity levels of 86%. Whether you're enjoying the winter chill or navigating the frequent rain, come prepared for this brisk and moody climate!

January Temperature in Westwood

In January in Westwood, the average temperature is 0°C (31°F). Maximum temperatures can reach 12°C (54°F), while minimums can drop as low as -20°C (-4°F). Be prepared for a wide range of temperatures, making it essential to pack accordingly for your travels.

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 12°C (54°F) and lows dropping to around -20°C (-4°F).

Data source: Temperature data for Westwood generated using information from the Copernicus Climate Change Service.

January Precipitation in Westwood

In Westwood in January, the total precipitation amount is 162 mm (6.4 in), which falls over the course of 11 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 162 mm (6.4 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Westwood

In Westwood in January humidity is 86%. With an average temperature of 0°C (31°F), this humidity feels like an icy shroud wrapping around you, making every breath feel heavy and damp, which can be quite challenging for traveling.

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 86%, offering insight into how humid the weather typically is during this month.

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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Westwood for better planning.

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 4, which falls under the moderate exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (31°F)	162 mm (6.4 inches)	86%	moderate
February Weather	0°C (32°F)	176 mm (6.9 inches)	87%	moderate
March Weather	2°C (35°F)	143 mm (5.6 inches)	86%	very high
April Weather	6°C (43°F)	73 mm (2.9 inches)	83%	very high
May Weather	11°C (53°F)	58 mm (2.3 inches)	72%	extreme
June Weather	17°C (64°F)	16 mm (0.6 inches)	67%	extreme
July Weather	22°C (72°F)	6 mm (0.2 inches)	56%	extreme
August Weather	21°C (70°F)	8 mm (0.3 inches)	42%	extreme
September Weather	16°C (62°F)	19 mm (0.7 inches)	46%	very high
October Weather	9°C (49°F)	42 mm (1.6 inches)	67%	high
November Weather	4°C (39°F)	79 mm (3.1 inches)	86%	moderate
December Weather	-1°C (30°F)	131 mm (5.2 inches)	86%	moderate