January Weather in Somerset, United States

Last updated: June 24, 2025

In January, the average temperature in Somerset, United States hovers around 4°C (39°F), with a possible minimum of -17°C (2°F) and a maximum of 22°C (71°F). Expect about 99 mm (3.9 in) of precipitation spread across 11 days, and brace yourself for an average humidity of 88%.

January Temperature in Somerset

In January in Somerset, the average temperature is 4°C (39°F). Maximum temperatures can reach as high as 22°C (71°F), while minimums can drop as low as -17°C (2°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Somerset, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Somerset, January typically has an average temperature of 4°C (39°F), with highs reaching up to 22°C (71°F) and lows dropping to around -17°C (2°F).

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

January Precipitation in Somerset

In Somerset, in January, the precipitation amount is 99 mm (3.9 in) over the course of 11 days.

January Precipitation Trends in Somerset

The chart displays monthly precipitation patterns in Somerset, 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 Somerset, January typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 11 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 Somerset

In Somerset in January, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.

January Average Humidity in Somerset

This chart illustrates the average monthly humidity levels in Somerset, 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 Somerset is approximately 88%, 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 Somerset

In Somerset 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 Somerset, you can check the information here.

Maximum UV Index Levels in Somerset for January

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

Data source: Somerset 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 Somerset Compares to Other Months

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

This table compares monthly weather conditions in Somerset, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	99 mm (3.9 inches)	88%	moderate
February Weather	7°C (44°F)	185 mm (7.3 inches)	88%	high
March Weather	10°C (51°F)	149 mm (5.9 inches)	87%	high
April Weather	14°C (58°F)	139 mm (5.5 inches)	84%	very high
May Weather	20°C (68°F)	128 mm (5.0 inches)	84%	extreme
June Weather	23°C (74°F)	142 mm (5.6 inches)	83%	extreme
July Weather	26°C (79°F)	104 mm (4.1 inches)	79%	extreme
August Weather	25°C (77°F)	120 mm (4.7 inches)	66%	very high
September Weather	22°C (72°F)	117 mm (4.6 inches)	67%	very high
October Weather	17°C (62°F)	121 mm (4.8 inches)	76%	high
November Weather	9°C (48°F)	78 mm (3.1 inches)	89%	moderate
December Weather	6°C (44°F)	139 mm (5.5 inches)	88%	moderate