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December Weather in La Grange, United States

Last updated: June 24, 2025

In December, the average temperature in La Grange, United States hovers around 2°C (36°F). Temperatures can dip as low as -20°C (-3°F) and soar to a pleasantly warm 23°C (73°F). Expect about 42 mm (1.7 in) of precipitation spread over 6 days and an average humidity level of 86%, making it a uniquely chilly yet fascinating time to visit.

December Temperature in La Grange

In December, in La Grange, the average temperature is 2°C (36°F). The maximum can reach 23°C (73°F), while the minimum can drop as low as -20°C (-3°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

December Weather in La Grange: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in La Grange, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Grange, December typically has an average temperature of 2°C (36°F), with highs reaching up to 23°C (73°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec283144536575797571574236
Data source: Temperature data for La Grange 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 La Grange

In La Grange in December, the total precipitation amount is 42 mm (1.7 in) spread over 6 days.

December Precipitation Trends in La Grange

The chart displays monthly precipitation patterns in La Grange, 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 La Grange, December typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec60591131021681088690851065343
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in La Grange

In La Grange in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in La Grange

This chart illustrates the average monthly humidity levels in La Grange, 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 La Grange is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in La Grange

In La Grange 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 La Grange, you can check the information here.

Maximum UV Index Levels in La Grange for December

The chart shows the monthly maximum UV Index (UVI) for La Grange 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 La Grange typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110108643
Data source: La Grange 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 La Grange Compares to Other Months

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

This table compares monthly weather conditions in La Grange, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)60 mm (2.4 inches)82%moderate
February Weather-1°C (31°F)59 mm (2.3 inches)80%moderate
March Weather7°C (44°F)113 mm (4.4 inches)80%high
April Weather11°C (53°F)102 mm (4.0 inches)80%very high
May Weather19°C (66°F)168 mm (6.6 inches)82%very high
June Weather24°C (76°F)108 mm (4.2 inches)83%extreme
July Weather26°C (79°F)86 mm (3.4 inches)81%very high
August Weather24°C (76°F)90 mm (3.6 inches)80%very high
September Weather21°C (71°F)84 mm (3.3 inches)76%very high
October Weather14°C (57°F)106 mm (4.2 inches)76%high
November Weather6°C (42°F)53 mm (2.1 inches)85%moderate
December Weather2°C (36°F)42 mm (1.7 inches)86%moderate

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