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December Weather in New London, United States

Last updated: June 24, 2025

In New London, United States, the average temperature in December hovers around 8°C (47°F). You can expect minimums dipping to -6°C (21°F) and maximums reaching up to 24°C (75°F). This month sees an average precipitation of 115 mm (4.5 in) spread over 9 days, with humidity levels around 87%, creating a distinctively crisp atmosphere.

December Temperature in New London

In December in New London, the average temperature is 8°C (47°F), with maximums reaching up to 24°C (75°F) and minimums dropping as low as -6°C (21°F). This weather makes it a perfect time for travelers to experience the beauty of New London while being prepared for varying temperatures.

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

The chart illustrates December 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, December typically has an average temperature of 8°C (47°F), with highs reaching up to 24°C (75°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec434853627076807874655146
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.

December Precipitation in New London

In New London in December, the precipitation amount is 115 mm (4.5 in) over the course of 9 days, indicating a relatively wet period for the region.

December Precipitation Trends in New London

The chart displays monthly precipitation patterns in New London, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In New London, December typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec95116841031191011021131549187115
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in New London

In New London in December, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

December Average Humidity in New London

This chart illustrates the average monthly humidity levels in New London, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in New London is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in New London

In New London in December, 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 December

The chart shows the monthly maximum UV Index (UVI) for New London in December, 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 December, the maximum UV index in New London typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101110109853
Data source: New London December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)95 mm (3.7 inches)86%moderate
February Weather9°C (49°F)116 mm (4.6 inches)85%high
March Weather12°C (53°F)84 mm (3.3 inches)84%very high
April Weather16°C (62°F)103 mm (4.0 inches)82%very high
May Weather21°C (71°F)119 mm (4.7 inches)83%very high
June Weather24°C (76°F)101 mm (4.0 inches)82%extreme
July Weather27°C (80°F)102 mm (4.0 inches)80%very high
August Weather26°C (78°F)113 mm (4.4 inches)74%very high
September Weather23°C (74°F)154 mm (6.1 inches)75%very high
October Weather18°C (65°F)90 mm (3.6 inches)79%very high
November Weather10°C (51°F)87 mm (3.4 inches)87%moderate
December Weather8°C (47°F)115 mm (4.5 inches)87%moderate

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