January Weather in Worcester, United States

Last updated: June 24, 2025

In January, the average temperature in Worcester, United States hovers around -5°C (24°F). Expect chilly nights, with minimum temperatures plunging to -26°C (-14°F), while daytime highs can reach a mild 16°C (61°F). Precipitation is relatively frequent, with an average of 76 mm (3.0 in) spread over 12 days, contributing to a comfortably high average humidity of 89%.

January Temperature in Worcester

In January in Worcester, the average temperature is -5°C (24°F). Maximums can reach 16°C (61°F), while minimums can dip as low as -26°C (-14°F). Be prepared for a wide range of temperatures if you're traveling to Worcester during this month.

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

The chart illustrates January temperature patterns in Worcester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Worcester, January typically has an average temperature of -5°C (24°F), with highs reaching up to 16°C (61°F) and lows dropping to around -26°C (-14°F).

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

January Precipitation in Worcester

In Worcester in January, the total precipitation amount is 76 mm (3.0 in), occurring over the course of 12 days.

January Precipitation Trends in Worcester

The chart displays monthly precipitation patterns in Worcester, 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 Worcester, January typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 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 Worcester

In Worcester in January humidity is 89%. With an average temperature of -5°C (24°F), this humidity feels like an uncomfortable chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm while battling the dampness in the air.

January Average Humidity in Worcester

This chart illustrates the average monthly humidity levels in Worcester, 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 Worcester is approximately 89%, 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 Worcester

In Worcester 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 Worcester, you can check the information here.

Maximum UV Index Levels in Worcester for January

The chart shows the monthly maximum UV Index (UVI) for Worcester 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 Worcester typically reaches 3, which falls under the moderate exposure category.

Data source: Worcester 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 Worcester Compares to Other Months

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

This table compares monthly weather conditions in Worcester, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	76 mm (3.0 inches)	89%	moderate
February Weather	-3°C (27°F)	94 mm (3.7 inches)	88%	moderate
March Weather	0°C (33°F)	87 mm (3.4 inches)	86%	high
April Weather	7°C (44°F)	114 mm (4.5 inches)	84%	very high
May Weather	13°C (56°F)	115 mm (4.5 inches)	76%	very high
June Weather	18°C (65°F)	101 mm (4.0 inches)	72%	very high
July Weather	21°C (70°F)	117 mm (4.6 inches)	66%	very high
August Weather	20°C (68°F)	106 mm (4.2 inches)	64%	very high
September Weather	16°C (62°F)	97 mm (3.8 inches)	72%	very high
October Weather	11°C (51°F)	144 mm (5.7 inches)	81%	high
November Weather	2°C (37°F)	97 mm (3.8 inches)	87%	moderate
December Weather	-2°C (29°F)	92 mm (3.6 inches)	84%	low