January Weather in New London, United States

Last updated: June 24, 2025

In New London, United States, the average temperature in January hovers around 9°C (49°F). However, temperatures can vary significantly, with a minimum of -12°C (11°F) and a maximum of 26°C (79°F). Visitors can expect an average precipitation of 108 mm (4.3 in) spread over 9 days, accompanied by a humidity level of 80%.

January Temperature in New London

In January in New London, the average temperature is 9°C (49°F), with maximums reaching as high as 26°C (79°F) and minimums dropping to a chilly -12°C (11°F). It's advisable to pack layers when traveling during this time to be prepared for varying temperatures.

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 9°C (49°F), with highs reaching up to 26°C (79°F) and lows dropping to around -12°C (11°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 108 mm (4.3 in) spread over 9 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 108 mm (4.3 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 New London

In New London in January, humidity is 80%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting a need for layered clothing to stay comfortable while traveling.

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 80%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in New London for better planning.

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 4, 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	9°C (49°F)	108 mm (4.3 inches)	80%	moderate
February Weather	11°C (51°F)	145 mm (5.7 inches)	79%	high
March Weather	16°C (61°F)	127 mm (5.0 inches)	78%	very high
April Weather	19°C (66°F)	133 mm (5.2 inches)	78%	very high
May Weather	23°C (75°F)	144 mm (5.7 inches)	81%	extreme
June Weather	27°C (81°F)	108 mm (4.2 inches)	78%	extreme
July Weather	29°C (84°F)	82 mm (3.2 inches)	73%	extreme
August Weather	29°C (85°F)	71 mm (2.8 inches)	66%	extreme
September Weather	26°C (80°F)	89 mm (3.5 inches)	65%	very high
October Weather	21°C (69°F)	97 mm (3.8 inches)	72%	very high
November Weather	14°C (58°F)	56 mm (2.2 inches)	82%	high
December Weather	12°C (53°F)	117 mm (4.6 inches)	87%	moderate