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December Weather in Blue Hill, United States

Last updated: June 24, 2025

In Blue Hill, United States, the average temperature in December hovers around 0°C (33°F). You'll experience a significant range, with minimums plummeting to -18°C (0°F) and maximums soaring to 23°C (73°F). Expect to encounter 39 mm (1.5 in) of precipitation spread over around 4 days, contributing to an average humidity of 79%.

December Temperature in Blue Hill

In December in Blue Hill, the average temperature is 0°C (33°F). The maximum can reach 23°C (73°F), while the minimum can be as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and lighter clothing options.

December Weather in Blue Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Blue Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blue Hill, December typically has an average temperature of 0°C (33°F), with highs reaching up to 23°C (73°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec282742516275797570534133
Data source: Temperature data for Blue Hill 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 Blue Hill

In Blue Hill in December, the precipitation amount is 39 mm (1.5 in) spread over a period of 4 days.

December Precipitation Trends in Blue Hill

The chart displays monthly precipitation patterns in Blue Hill, 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 Blue Hill, December typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec2719844718171718373742039
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Blue Hill

In Blue Hill in December humidity is 79%. With an average temperature of 0°C (33°F), this humidity feels like a biting chill that cuts through your clothes, making traveling quite uncomfortable as the dampness clings to your skin and saps your energy.

December Average Humidity in Blue Hill

This chart illustrates the average monthly humidity levels in Blue Hill, 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 Blue Hill is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%81%69%71%80%83%84%84%77%72%80%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Blue Hill

In Blue Hill 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 Blue Hill, you can check the information here.

Maximum UV Index Levels in Blue Hill for December

The chart shows the monthly maximum UV Index (UVI) for Blue Hill 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 Blue Hill typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111108643
Data source: Blue Hill 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 Blue Hill Compares to Other Months

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

This table compares monthly weather conditions in Blue Hill, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)27 mm (1.0 inches)73%moderate
February Weather-3°C (28°F)19 mm (0.8 inches)81%moderate
March Weather6°C (42°F)84 mm (3.3 inches)69%high
April Weather10°C (51°F)47 mm (1.8 inches)71%very high
May Weather17°C (62°F)181 mm (7.1 inches)80%very high
June Weather24°C (76°F)71 mm (2.8 inches)83%extreme
July Weather26°C (79°F)71 mm (2.8 inches)84%extreme
August Weather24°C (75°F)83 mm (3.3 inches)84%very high
September Weather21°C (70°F)73 mm (2.9 inches)77%very high
October Weather11°C (53°F)74 mm (2.9 inches)72%high
November Weather5°C (42°F)20 mm (0.8 inches)80%moderate
December Weather0°C (33°F)39 mm (1.5 inches)79%moderate

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