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January Weather in New London, United States

Last updated: June 24, 2025

In January, the average temperature in New London, United States hovers at a brisk -10°C (14°F). While the mercury can dip to a chilling -35°C (-30°F), it can also rise to a mild 8°C (46°F). Expect 19 mm (0.7 in) of precipitation over 5 days, and with an average humidity of 85%, you’ll definitely want to bundle up!

January Temperature in New London

In January in New London, the average temperature is -10°C (14°F), with maximums reaching 8°C (46°F) and minimums plummeting to -35°C (-30°F). Travelers should be prepared for extreme cold conditions, making appropriate winter gear essential.

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 -10°C (14°F), with highs reaching up to 8°C (46°F) and lows dropping to around -35°C (-30°F).
JanFebMarAprMayJunJulAugSepOctNovDec141431415871737063473222
Data source: Temperature data for New London generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in New London

In New London in January, the total precipitation amount is 19 mm (0.7 in) spread over the course of 5 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 19 mm (0.7 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec192150759986100140114982741
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in New London

In New London in January, humidity is 85%. With an average temperature of -10°C (14°F), this humidity feels like navigating through a cold, damp fog that clings to your skin, making every step outside a challenge as the chill seeps into your bones.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3567910997532
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.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)19 mm (0.7 inches)85%moderate
February Weather-10°C (15°F)21 mm (0.8 inches)89%moderate
March Weather-1°C (31°F)50 mm (2.0 inches)81%high
April Weather5°C (42°F)75 mm (3.0 inches)82%high
May Weather14°C (58°F)99 mm (3.9 inches)76%very high
June Weather22°C (71°F)86 mm (3.4 inches)81%very high
July Weather23°C (74°F)100 mm (4.0 inches)82%very high
August Weather21°C (70°F)140 mm (5.5 inches)83%very high
September Weather17°C (63°F)114 mm (4.5 inches)82%high
October Weather8°C (47°F)98 mm (3.9 inches)82%moderate
November Weather0°C (32°F)27 mm (1.1 inches)87%moderate
December Weather-6°C (22°F)41 mm (1.6 inches)84%low

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