January Weather in Swanzey, United States

Last updated: June 24, 2025

In January, the average temperature in Swanzey, United States hovers around -3°C (26°F). However, be prepared for a wide range, as temperatures can dip as low as -25°C (-13°F) and rise to a maximum of 17°C (63°F). During this month, expect about 74 mm (2.9 in) of precipitation over 9 days, accompanied by a high average humidity of 86%.

January Temperature in Swanzey

In January in Swanzey, the average temperature is -3°C (26°F), with maximums reaching 17°C (63°F) and minimums dropping as low as -25°C (-13°F). It's essential to prepare for a wide range of temperatures when traveling during this time.

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

The chart illustrates January temperature patterns in Swanzey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swanzey, January typically has an average temperature of -3°C (26°F), with highs reaching up to 17°C (63°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Swanzey

In Swanzey in January, the precipitation amount is 74 mm (2.9 in), which occurs over a span of 9 days.

January Precipitation Trends in Swanzey

The chart displays monthly precipitation patterns in Swanzey, 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 Swanzey, January typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Swanzey

In Swanzey in January humidity is 86%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that penetrates your clothing, making it essential to bundle up tightly if you're planning to explore the area.

January Average Humidity in Swanzey

This chart illustrates the average monthly humidity levels in Swanzey, 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 Swanzey is approximately 86%, 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 Swanzey

In Swanzey 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 Swanzey, you can check the information here.

Maximum UV Index Levels in Swanzey for January

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

Data source: Swanzey 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 Swanzey Compares to Other Months

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

This table compares monthly weather conditions in Swanzey, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	74 mm (2.9 inches)	86%	moderate
February Weather	-2°C (29°F)	86 mm (3.4 inches)	84%	moderate
March Weather	1°C (34°F)	79 mm (3.1 inches)	82%	high
April Weather	8°C (46°F)	124 mm (4.9 inches)	80%	very high
May Weather	14°C (58°F)	84 mm (3.3 inches)	72%	very high
June Weather	20°C (68°F)	75 mm (3.0 inches)	72%	very high
July Weather	23°C (73°F)	123 mm (4.9 inches)	67%	very high
August Weather	22°C (71°F)	83 mm (3.3 inches)	66%	very high
September Weather	18°C (64°F)	83 mm (3.3 inches)	71%	high
October Weather	11°C (53°F)	133 mm (5.3 inches)	78%	high
November Weather	4°C (39°F)	100 mm (3.9 inches)	84%	moderate
December Weather	-1°C (30°F)	117 mm (4.6 inches)	81%	low