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December Weather in Union Grove, United States

Last updated: June 24, 2025

In December, the average temperature in Union Grove, United States hovers around 0°C (33°F). Expect chilly lows of -19°C (-2°F) and occasional highs reaching 17°C (63°F). During this time, precipitation typically totals 55 mm (2.1 in) over approximately 7 days, contributing to an average humidity of 81%. Stay warm and prepared for a brisk month ahead!

December Temperature in Union Grove

In December in Union Grove, the average temperature is 0°C (33°F), with maximums reaching 17°C (63°F) and minimums dropping as low as -19°C (-2°F). Travelers should prepare for a wide range of temperatures and pack accordingly to enjoy their visit.

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

The chart illustrates December temperature patterns in Union Grove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union Grove, December typically has an average temperature of 0°C (33°F), with highs reaching up to 17°C (63°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec252636435465727266533932
Data source: Temperature data for Union Grove 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 Grove

In Union Grove in December, the total precipitation amount reaches 55 mm (2.1 in) over the course of 7 days.

December Precipitation Trends in Union Grove

The chart displays monthly precipitation patterns in Union Grove, 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 Grove, December typically receives around 55 mm (2.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec666367113146967768891245555
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Union Grove

In Union Grove in December, humidity is 81%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill enveloping you, making travel uncomfortable and the air heavy, leaving you craving warmth and dry conditions.

December Average Humidity in Union Grove

This chart illustrates the average monthly humidity levels in Union Grove, 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 Grove is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Union Grove

In Union Grove 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 Union Grove, you can visit Hourly UV Index in Union Grove.

Maximum UV Index Levels in Union Grove for December

The chart shows the monthly maximum UV Index (UVI) for Union Grove 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 Grove typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101098532
Data source: Union Grove 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 Grove Compares to Other Months

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

This table compares monthly weather conditions in Union Grove, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)66 mm (2.6 inches)85%low
February Weather-3°C (27°F)63 mm (2.5 inches)85%moderate
March Weather2°C (36°F)67 mm (2.6 inches)85%high
April Weather6°C (44°F)113 mm (4.4 inches)85%very high
May Weather12°C (54°F)146 mm (5.7 inches)78%very high
June Weather19°C (66°F)96 mm (3.8 inches)80%very high
July Weather22°C (73°F)77 mm (3.0 inches)78%very high
August Weather22°C (72°F)68 mm (2.7 inches)76%very high
September Weather19°C (66°F)89 mm (3.5 inches)79%very high
October Weather12°C (53°F)124 mm (4.9 inches)83%moderate
November Weather4°C (39°F)55 mm (2.2 inches)88%moderate
December Weather0°C (33°F)55 mm (2.1 inches)81%low

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