January Weather in Millbury, United States

Last updated: June 24, 2025

In January, the average temperature in Millbury, United States hovers around -2°C (29°F), with a chilling minimum of -22°C (-7°F) and a surprising maximum of 19°C (67°F). Expect an average of 72 mm (2.8 in) of precipitation spread across 8 days, contributing to a humid atmosphere with an average humidity level of 86%.

January Temperature in Millbury

In January in Millbury, the average temperature is -2°C (29°F). Maximum temperatures can reach 19°C (67°F), while the minimum can drop as low as -22°C (-7°F). Be sure to pack layers and prepare for a wide range of temperatures when traveling during this time.

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

The chart illustrates January temperature patterns in Millbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millbury, January typically has an average temperature of -2°C (29°F), with highs reaching up to 19°C (67°F) and lows dropping to around -22°C (-7°F).

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

January Precipitation in Millbury

In Millbury in January, the precipitation amount is 72 mm (2.8 in) over the course of 8 days.

January Precipitation Trends in Millbury

The chart displays monthly precipitation patterns in Millbury, 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 Millbury, January typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Millbury

In Millbury in January humidity is 86%. With an average temperature of -2°C (29°F), this humidity feels like a damp chill that seeps through layers of clothing, making outdoor activities uncomfortable and travel plans challenging.

January Average Humidity in Millbury

This chart illustrates the average monthly humidity levels in Millbury, 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 Millbury 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 Millbury

In Millbury 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 Millbury, you can check the information here.

Maximum UV Index Levels in Millbury for January

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

Data source: Millbury 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 Millbury Compares to Other Months

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

This table compares monthly weather conditions in Millbury, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	72 mm (2.8 inches)	86%	moderate
February Weather	0°C (32°F)	88 mm (3.5 inches)	84%	moderate
March Weather	3°C (37°F)	90 mm (3.5 inches)	82%	high
April Weather	9°C (48°F)	130 mm (5.1 inches)	80%	very high
May Weather	14°C (58°F)	94 mm (3.7 inches)	72%	very high
June Weather	20°C (68°F)	95 mm (3.7 inches)	72%	very high
July Weather	23°C (74°F)	150 mm (5.9 inches)	67%	very high
August Weather	22°C (73°F)	101 mm (4.0 inches)	66%	very high
September Weather	19°C (66°F)	93 mm (3.7 inches)	71%	high
October Weather	13°C (55°F)	141 mm (5.5 inches)	78%	high
November Weather	5°C (42°F)	101 mm (4.0 inches)	84%	moderate
December Weather	0°C (33°F)	123 mm (4.9 inches)	81%	low