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December Weather in North Fairfield, United States

Last updated: June 24, 2025

In December, the average temperature in North Fairfield, United States hovers around 1°C (35°F), with a minimum dipping to -20°C (-3°F) and a maximum reaching 18°C (64°F). Expect around 84 mm (3.3 in) of precipitation over 12 days, and with an average humidity of 86%, it’s safe to say that North Fairfield can feel quite brisk and damp.

December Temperature in North Fairfield

In December in North Fairfield, the average temperature is 1°C (35°F). The maximum can reach 18°C (64°F), while the minimum can be as low as -20°C (-3°F). Travelers should be prepared for a wide range of temperatures, so layering clothing is essential for staying comfortable.

December Weather in North Fairfield: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in North Fairfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Fairfield, December typically has an average temperature of 1°C (35°F), with highs reaching up to 18°C (64°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec293240506270747267564134
Data source: Temperature data for North Fairfield 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 North Fairfield

In North Fairfield in December, the precipitation amount is 84 mm (3.3 in) over a span of 12 days.

December Precipitation Trends in North Fairfield

The chart displays monthly precipitation patterns in North Fairfield, 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 North Fairfield, December typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7892971231291361289179968884
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in North Fairfield

In North Fairfield in December, humidity is 86%. With an average temperature of 1°C (35°F), this humidity feels like a biting chill that wraps around you, making outdoor exploration uncomfortable and requiring extra layers to stay warm while navigating the damp air.

December Average Humidity in North Fairfield

This chart illustrates the average monthly humidity levels in North Fairfield, 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 North Fairfield is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in North Fairfield

In North Fairfield in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in North Fairfield, you can visit Hourly UV Index in North Fairfield.

Maximum UV Index Levels in North Fairfield for December

The chart shows the monthly maximum UV Index (UVI) for North Fairfield 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 North Fairfield typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: North Fairfield 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 North Fairfield Compares to Other Months

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

This table compares monthly weather conditions in North Fairfield, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)78 mm (3.1 inches)88%moderate
February Weather0°C (32°F)92 mm (3.6 inches)87%moderate
March Weather4°C (40°F)97 mm (3.8 inches)87%high
April Weather10°C (50°F)123 mm (4.8 inches)87%very high
May Weather16°C (62°F)129 mm (5.1 inches)81%very high
June Weather21°C (71°F)136 mm (5.4 inches)82%very high
July Weather24°C (75°F)128 mm (5.0 inches)81%very high
August Weather22°C (72°F)91 mm (3.6 inches)78%very high
September Weather20°C (67°F)79 mm (3.1 inches)78%very high
October Weather14°C (57°F)96 mm (3.8 inches)82%high
November Weather5°C (41°F)88 mm (3.4 inches)89%moderate
December Weather1°C (35°F)84 mm (3.3 inches)86%low

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