January Weather in Fairhaven, United States

Last updated: June 24, 2025

In January, the average temperature in Fairhaven, United States hovers around 1°C (33°F). Expect chilly days where the minimum can drop to -20°C (-4°F), while the mercury can rise as high as 20°C (69°F). Be prepared for frequent showers, as the area receives an average precipitation of 78 mm (3.1 in) over about 8 days, and the air carries a high humidity level of 84%.

January Temperature in Fairhaven

In January, in Fairhaven, the average temperature is 1°C (33°F). The maximum can reach 20°C (69°F), and the minimum can be as low as -20°C (-4°F). Travelers should be prepared for a wide range of temperatures, bringing both warm and light clothing to accommodate the chilly nights and potentially mild days.

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

The chart illustrates January temperature patterns in Fairhaven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairhaven, January typically has an average temperature of 1°C (33°F), with highs reaching up to 20°C (69°F) and lows dropping to around -20°C (-4°F).

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

January Precipitation in Fairhaven

In Fairhaven in January, the total precipitation amount is 78 mm (3.1 in) over the course of 8 days.

January Precipitation Trends in Fairhaven

The chart displays monthly precipitation patterns in Fairhaven, 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 Fairhaven, January typically receives around 78 mm (3.1 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 Fairhaven

In Fairhaven in January humidity is 84%. With an average temperature of 1°C (33°F), this humidity feels like an icy blanket, making travel uncomfortable and breathless as the frigid air clings to your skin and dampens your clothes.

January Average Humidity in Fairhaven

This chart illustrates the average monthly humidity levels in Fairhaven, 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 Fairhaven is approximately 84%, 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 Fairhaven

In Fairhaven 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 Fairhaven, you can check the information here.

Maximum UV Index Levels in Fairhaven for January

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

Data source: Fairhaven 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 Fairhaven Compares to Other Months

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

This table compares monthly weather conditions in Fairhaven, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	78 mm (3.1 inches)	84%	moderate
February Weather	2°C (35°F)	94 mm (3.7 inches)	84%	moderate
March Weather	4°C (39°F)	104 mm (4.1 inches)	82%	high
April Weather	9°C (49°F)	122 mm (4.8 inches)	79%	very high
May Weather	14°C (58°F)	99 mm (3.9 inches)	75%	very high
June Weather	20°C (68°F)	94 mm (3.7 inches)	78%	very high
July Weather	23°C (74°F)	113 mm (4.5 inches)	76%	very high
August Weather	23°C (74°F)	86 mm (3.4 inches)	76%	very high
September Weather	19°C (67°F)	98 mm (3.8 inches)	75%	very high
October Weather	14°C (58°F)	138 mm (5.4 inches)	75%	high
November Weather	7°C (45°F)	96 mm (3.8 inches)	80%	moderate
December Weather	2°C (37°F)	116 mm (4.6 inches)	80%	low