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December Weather in Highland Park, United States

Last updated: June 24, 2025

The average temperature in Highland Park, United States during December hovers around 11°C (52°F). Expect a minimum of -5°C (24°F) and a maximum of 28°C (83°F). This month also brings about 66 mm (2.6 in) of precipitation over approximately 7 days, with humidity levels reaching an impressive 87%.

December Temperature in Highland Park

In December in Highland Park, the average temperature is 11°C (52°F). Maximums can reach 28°C (83°F), while minimums can drop as low as -5°C (24°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

December Weather in Highland Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Highland Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Highland Park, December typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec474961657582858579685752
Data source: Temperature data for Highland Park 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 Highland Park

In Highland Park in December, the precipitation amount is 66 mm (2.6 in) over a period of 7 days.

December Precipitation Trends in Highland Park

The chart displays monthly precipitation patterns in Highland Park, 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 Highland Park, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec60102115123178934796811435566
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Highland Park

In Highland Park in December, humidity is 87%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make your clothes cling uncomfortably, leaving you feeling slightly weighed down while exploring the area.

December Average Humidity in Highland Park

This chart illustrates the average monthly humidity levels in Highland Park, 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 Highland Park is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Highland Park

In Highland Park 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 Highland Park for better planning.

Maximum UV Index Levels in Highland Park for December

The chart shows the monthly maximum UV Index (UVI) for Highland Park 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 Highland Park typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Highland Park 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 Highland Park Compares to Other Months

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

This table compares monthly weather conditions in Highland Park, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)60 mm (2.4 inches)80%moderate
February Weather10°C (50°F)102 mm (4.0 inches)79%high
March Weather16°C (61°F)115 mm (4.5 inches)78%very high
April Weather19°C (66°F)122 mm (4.8 inches)78%very high
May Weather24°C (75°F)178 mm (7.0 inches)81%extreme
June Weather28°C (82°F)93 mm (3.6 inches)78%extreme
July Weather30°C (85°F)47 mm (1.8 inches)73%extreme
August Weather29°C (85°F)96 mm (3.8 inches)66%extreme
September Weather26°C (80°F)81 mm (3.2 inches)65%very high
October Weather20°C (68°F)143 mm (5.6 inches)72%very high
November Weather14°C (57°F)55 mm (2.2 inches)82%high
December Weather11°C (52°F)66 mm (2.6 inches)87%moderate

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