January Weather in New London, United States

Last updated: June 24, 2025

In January, the average temperature in New London, United States hovers around -7°C (20°F), with extremes that can plunge to a chilling -31°C (-23°F) or rise to a peak of 9°C (48°F). Expect 39 mm (1.5 in) of precipitation over approximately 7 days, coupled with an average humidity of 89%, making for a distinctly crisp and damp atmosphere.

January Temperature in New London

In January in New London, the average temperature is -7°C (20°F). Maximum temperatures can reach 9°C (48°F), while minimums can drop as low as -31°C (-23°F). Be prepared for cold weather and plan accordingly if you decide to visit during this time.

January Weather in New London: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in New London, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New London, January typically has an average temperature of -7°C (20°F), with highs reaching up to 9°C (48°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in New London

In New London in January, the precipitation amount is 39 mm (1.5 in) over the course of 7 days.

January Precipitation Trends in New London

The chart displays monthly precipitation patterns in New London, 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 New London, January typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 7 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 New London

In New London in January humidity is 89%. With an average temperature of -7°C (20°F), this humidity feels like a biting chill that seeps into your bones, making travel quite uncomfortable as you navigate the frosty air that clings to every breath.

January Average Humidity in New London

This chart illustrates the average monthly humidity levels in New London, 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 New London 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 New London

In New London 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 New London, you can check the information here.

Maximum UV Index Levels in New London for January

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

Data source: New London 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 New London Compares to Other Months

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

This table compares monthly weather conditions in New London, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	39 mm (1.5 inches)	89%	moderate
February Weather	-7°C (20°F)	49 mm (1.9 inches)	90%	moderate
March Weather	0°C (33°F)	61 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)	109 mm (4.3 inches)	77%	very high
June Weather	20°C (69°F)	104 mm (4.1 inches)	75%	very high
July Weather	23°C (73°F)	115 mm (4.5 inches)	74%	very high
August Weather	21°C (70°F)	114 mm (4.5 inches)	73%	very high
September Weather	17°C (62°F)	79 mm (3.1 inches)	78%	high
October Weather	9°C (49°F)	101 mm (4.0 inches)	84%	moderate
November Weather	1°C (35°F)	51 mm (2.0 inches)	89%	moderate
December Weather	-4°C (26°F)	55 mm (2.2 inches)	87%	low