January Weather in Bunker Hill, United States

Last updated: June 24, 2025

In January, the average temperature in Bunker Hill, United States hovers around -2°C (29°F), with extreme minimums plummeting to -27°C (-16°F) and maximums reaching a surprising 18°C (65°F). Expect 76 mm (3.0 in) of precipitation spread over 8 days, alongside a notable average humidity of 85%.

January Temperature in Bunker Hill

In January in Bunker Hill, the average temperature is -2°C (29°F), with maximums reaching 18°C (65°F) and minimums dropping as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.

January Weather in Bunker Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Bunker Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bunker Hill, January typically has an average temperature of -2°C (29°F), with highs reaching up to 18°C (65°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Bunker Hill

In Bunker Hill in January, the precipitation amount is 76 mm (3.0 in) spread over a duration of 8 days.

January Precipitation Trends in Bunker Hill

The chart displays monthly precipitation patterns in Bunker Hill, 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 Bunker Hill, January typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 8 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 Bunker Hill

In Bunker Hill in January, humidity is 85%. With an average temperature of -2°C (29°F), this humidity feels like a chilling, damp blanket that clings to your skin, making travel uncomfortable and often prompting an urgent search for warmth and shelter.

January Average Humidity in Bunker Hill

This chart illustrates the average monthly humidity levels in Bunker Hill, 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 Bunker Hill is approximately 85%, 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 Bunker Hill

In Bunker Hill 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 Bunker Hill, you can check the information here.

Maximum UV Index Levels in Bunker Hill for January

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

Data source: Bunker Hill 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 Bunker Hill Compares to Other Months

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

This table compares monthly weather conditions in Bunker Hill, 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)	76 mm (3.0 inches)	85%	moderate
February Weather	-1°C (31°F)	81 mm (3.2 inches)	85%	moderate
March Weather	5°C (41°F)	103 mm (4.0 inches)	86%	high
April Weather	10°C (51°F)	93 mm (3.7 inches)	87%	very high
May Weather	17°C (63°F)	151 mm (5.9 inches)	81%	very high
June Weather	23°C (73°F)	107 mm (4.2 inches)	82%	very high
July Weather	24°C (76°F)	105 mm (4.2 inches)	81%	very high
August Weather	23°C (73°F)	107 mm (4.2 inches)	79%	very high
September Weather	20°C (69°F)	65 mm (2.6 inches)	78%	very high
October Weather	14°C (57°F)	102 mm (4.0 inches)	81%	high
November Weather	5°C (41°F)	81 mm (3.2 inches)	89%	moderate
December Weather	2°C (35°F)	67 mm (2.6 inches)	86%	low