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December Weather in Earth, United States

Last updated: June 24, 2025

In Earth, United States, the average temperature in December hovers around 6°C (43°F). While you might experience chilly days with a minimum of -9°C (17°F), temperatures can also rise to a pleasant 24°C (76°F). Expect 13 mm (0.5 in) of precipitation spread over 2 days, contributing to an average humidity level of 77%.

December Temperature in Earth

In December in Earth, the average temperature is 6°C (43°F). The maximum can reach 24°C (76°F) and the minimum can drop as low as -9°C (17°F). Pack for a variety of weather conditions to fully enjoy your trip!

December Weather in Earth: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Earth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Earth, December typically has an average temperature of 6°C (43°F), with highs reaching up to 24°C (76°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec404253596977807872594943
Data source: Temperature data for Earth 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 Earth

In Earth in December, the precipitation amount is 13 mm (0.5 in) over a span of 2 days.

December Precipitation Trends in Earth

The chart displays monthly precipitation patterns in Earth, 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 Earth, December typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec181236214934294341671413
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Earth

In Earth in December humidity is 77%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress warmly and stay active while exploring the area.

December Average Humidity in Earth

This chart illustrates the average monthly humidity levels in Earth, 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 Earth is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%75%61%62%69%74%75%78%76%76%80%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Earth

In Earth in December, 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 Earth for better planning.

Maximum UV Index Levels in Earth for December

The chart shows the monthly maximum UV Index (UVI) for Earth 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 Earth typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111112121110864
Data source: Earth 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 Earth Compares to Other Months

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

This table compares monthly weather conditions in Earth, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)18 mm (0.7 inches)74%moderate
February Weather6°C (43°F)12 mm (0.5 inches)75%high
March Weather11°C (53°F)36 mm (1.4 inches)61%very high
April Weather15°C (59°F)21 mm (0.8 inches)61%extreme
May Weather21°C (69°F)49 mm (1.9 inches)69%extreme
June Weather25°C (78°F)34 mm (1.3 inches)74%extreme
July Weather27°C (80°F)29 mm (1.1 inches)75%extreme
August Weather26°C (78°F)43 mm (1.7 inches)78%extreme
September Weather22°C (72°F)41 mm (1.6 inches)76%very high
October Weather15°C (59°F)67 mm (2.7 inches)76%very high
November Weather10°C (50°F)14 mm (0.5 inches)80%high
December Weather6°C (43°F)13 mm (0.5 inches)77%moderate

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