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December Weather in Union Hall, United States

Last updated: June 24, 2025

In December, the average temperature in Union Hall, United States hovers around 6°C (43°F). The temperature can dip as low as -9°C (16°F) or rise as high as 22°C (73°F). Expect an average precipitation of 101 mm (4.0 in) spread across 9 days, and a humidity level of about 85%, making it a notably damp month.

December Temperature in Union Hall

In December in Union Hall, the average temperature is 6°C (43°F). Maximums can reach 22°C (73°F), and minimums can be as low as -9°C (16°F). Travelers should be prepared for a wide range of temperatures, from chilly to pleasantly warm, making layering essential for outdoor activities.

December Weather in Union Hall: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Union Hall, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union Hall, December typically has an average temperature of 6°C (43°F), with highs reaching up to 22°C (73°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec394449586774797772624843
Data source: Temperature data for Union Hall 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 Union Hall

In Union Hall in December, the total precipitation amount is 101 mm (4.0 in), occurring over a span of 9 days.

December Precipitation Trends in Union Hall

The chart displays monthly precipitation patterns in Union Hall, 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 Union Hall, December typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec711076812913394589911011375101
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Union Hall

In Union Hall in December, humidity is 85%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making travel feel more uncomfortable and limiting your enjoyment of the sights as you navigate the wet, brisk air.

December Average Humidity in Union Hall

This chart illustrates the average monthly humidity levels in Union Hall, 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 Union Hall is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%84%82%83%83%79%77%75%81%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Union Hall

In Union Hall 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 Union Hall, you can check the information here.

Maximum UV Index Levels in Union Hall for December

The chart shows the monthly maximum UV Index (UVI) for Union Hall 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 Union Hall typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3689101110109753
Data source: Union Hall 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 Union Hall Compares to Other Months

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

This table compares monthly weather conditions in Union Hall, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)71 mm (2.8 inches)84%moderate
February Weather7°C (44°F)107 mm (4.2 inches)84%high
March Weather10°C (49°F)68 mm (2.7 inches)84%very high
April Weather15°C (59°F)129 mm (5.1 inches)82%very high
May Weather20°C (67°F)133 mm (5.2 inches)82%very high
June Weather23°C (74°F)94 mm (3.7 inches)83%extreme
July Weather26°C (79°F)58 mm (2.3 inches)79%very high
August Weather25°C (77°F)99 mm (3.9 inches)77%very high
September Weather22°C (72°F)109 mm (4.3 inches)75%very high
October Weather17°C (62°F)113 mm (4.4 inches)81%high
November Weather9°C (48°F)75 mm (3.0 inches)87%moderate
December Weather6°C (43°F)101 mm (4.0 inches)85%moderate

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