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December Weather in West Union, United States

Last updated: June 24, 2025

In December, the average temperature in West Union, United States hovers around 4°C (40°F), featuring a minimum that can dip to -14°C (8°F) and a maximum reaching up to 20°C (68°F). Expect 117 mm (4.6 in) of precipitation spread across 11 days, contributing to an average humidity of 87%.

December Temperature in West Union

In December in West Union, the average temperature is 4°C (40°F), with maximums reaching 20°C (68°F) and minimums dropping as low as -14°C (8°F). This range means travelers should be prepared for both mild days and cold nights during their visit.

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

The chart illustrates December temperature patterns in West Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In West Union, December typically has an average temperature of 4°C (40°F), with highs reaching up to 20°C (68°F) and lows dropping to around -14°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec343946556673777570594439
Data source: Temperature data for West Union 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 West Union

In West Union in December, the total precipitation amount reaches 117 mm (4.6 in) over the course of 11 days.

December Precipitation Trends in West Union

The chart displays monthly precipitation patterns in West Union, 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 West Union, December typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec901271171361311621169611011385117
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in West Union

In West Union in December humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

December Average Humidity in West Union

This chart illustrates the average monthly humidity levels in West Union, 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 West Union is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in West Union

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

Maximum UV Index Levels in West Union for December

The chart shows the monthly maximum UV Index (UVI) for West Union 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 West Union typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098653
Data source: West Union 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 West Union Compares to Other Months

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

This table compares monthly weather conditions in West Union, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)90 mm (3.6 inches)88%moderate
February Weather4°C (39°F)126 mm (5.0 inches)88%moderate
March Weather8°C (46°F)117 mm (4.6 inches)87%high
April Weather13°C (55°F)136 mm (5.4 inches)85%very high
May Weather19°C (66°F)130 mm (5.1 inches)81%very high
June Weather23°C (73°F)162 mm (6.4 inches)82%very high
July Weather25°C (77°F)115 mm (4.5 inches)81%very high
August Weather24°C (75°F)96 mm (3.8 inches)73%very high
September Weather21°C (70°F)110 mm (4.3 inches)73%very high
October Weather15°C (60°F)113 mm (4.5 inches)78%high
November Weather7°C (45°F)85 mm (3.3 inches)89%moderate
December Weather4°C (40°F)117 mm (4.6 inches)87%moderate

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