January Weather in Amherst, United States

Last updated: June 24, 2025

In January, the average temperature in Amherst, United States hovers around -8°C (19°F). Expect chilly conditions with minimums plummeting to -32°C (-25°F) and maximums reaching a mere 8°C (47°F). Rain or snow may grace the month with 38 mm (1.5 in) of precipitation over 6 days, and the air remains quite damp, with an average humidity of 89%.

January Temperature in Amherst

In January in Amherst, the average temperature is -8°C (19°F), with maximums reaching up to 8°C (47°F) and minimums potentially dropping as low as -32°C (-25°F). Travelers should be prepared for extreme cold and varying temperatures during this time.

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

The chart illustrates January temperature patterns in Amherst, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Amherst, January typically has an average temperature of -8°C (19°F), with highs reaching up to 8°C (47°F) and lows dropping to around -32°C (-25°F).

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

January Precipitation in Amherst

In Amherst in January, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.

January Precipitation Trends in Amherst

The chart displays monthly precipitation patterns in Amherst, 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 Amherst, January typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 6 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 Amherst

In Amherst in January humidity is 89%. With an average temperature of -8°C (19°F), this humidity feels like a biting chill, making it crucial for travelers to bundle up and prepare for the damp, cold air that penetrates even the warmest clothing.

January Average Humidity in Amherst

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

In Amherst in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Amherst, you can visit Hourly UV Index in Amherst.

Maximum UV Index Levels in Amherst for January

The chart shows the monthly maximum UV Index (UVI) for Amherst 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 Amherst typically reaches 2, which falls under the low exposure category.

Data source: Amherst 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 Amherst Compares to Other Months

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

This table compares monthly weather conditions in Amherst, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (19°F)	38 mm (1.5 inches)	89%	low
February Weather	-7°C (19°F)	51 mm (2.0 inches)	90%	moderate
March Weather	0°C (33°F)	62 mm (2.4 inches)	87%	moderate
April Weather	6°C (43°F)	102 mm (4.0 inches)	84%	very high
May Weather	14°C (57°F)	110 mm (4.3 inches)	77%	very high
June Weather	20°C (68°F)	113 mm (4.5 inches)	75%	very high
July Weather	22°C (72°F)	129 mm (5.1 inches)	74%	very high
August Weather	20°C (69°F)	137 mm (5.4 inches)	73%	very high
September Weather	17°C (62°F)	98 mm (3.8 inches)	78%	high
October Weather	9°C (49°F)	106 mm (4.2 inches)	84%	moderate
November Weather	1°C (34°F)	49 mm (1.9 inches)	89%	moderate
December Weather	-4°C (25°F)	53 mm (2.1 inches)	87%	low