January Weather in Amherst, United States

Last updated: June 24, 2025

In January, the average temperature in Amherst, United States hovers around 5°C (41°F). Expect a temperature range that can dip as low as -14°C (6°F) or rise as high as 25°C (78°F). Rainfall is mild, with an average precipitation of 16 mm (0.6 in) spread over just 2 days. The air is fairly humid, with an average humidity level of 75%.

January Temperature in Amherst

In January in Amherst, the average temperature is 5°C (41°F). Maximum temperatures can reach up to 25°C (78°F), while the minimum can drop as low as -14°C (6°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their visit.

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 5°C (41°F), with highs reaching up to 25°C (78°F) and lows dropping to around -14°C (6°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 precipitation amount is 16 mm (0.6 in) over a period of 2 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 16 mm (0.6 inches) of precipitation spread over approximately 2 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 75%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less inviting and requiring extra layers for comfort while traveling.

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 75%, 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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the 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 5, which falls under the moderate 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	5°C (41°F)	16 mm (0.6 inches)	75%	moderate
February Weather	6°C (44°F)	11 mm (0.4 inches)	74%	high
March Weather	12°C (54°F)	35 mm (1.4 inches)	61%	very high
April Weather	16°C (60°F)	22 mm (0.9 inches)	61%	extreme
May Weather	21°C (70°F)	49 mm (1.9 inches)	67%	extreme
June Weather	26°C (78°F)	38 mm (1.5 inches)	69%	extreme
July Weather	27°C (81°F)	31 mm (1.2 inches)	69%	extreme
August Weather	26°C (79°F)	39 mm (1.5 inches)	66%	extreme
September Weather	23°C (73°F)	44 mm (1.7 inches)	71%	very high
October Weather	15°C (60°F)	63 mm (2.5 inches)	71%	very high
November Weather	10°C (50°F)	16 mm (0.6 inches)	82%	high
December Weather	6°C (44°F)	15 mm (0.6 inches)	80%	moderate