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December Weather in Aurora, United States

Last updated: June 24, 2025

In December, the average temperature in Aurora, United States hovers around 1°C (35°F). Expect a chill in the air, with temperatures dipping as low as -20°C (-3°F) and reaching a warm 22°C (73°F). During this month, precipitation is minimal, averaging just 7 mm (0.3 in) spread over 2 days, while the average humidity sits comfortably at 80%.

December Temperature in Aurora

In December in Aurora, the average temperature is 1°C (35°F), with maximums reaching 22°C (73°F) and minimums dipping as low as -20°C (-3°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their visit to Aurora.

December Weather in Aurora: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Aurora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aurora, December typically has an average temperature of 1°C (35°F), with highs reaching up to 22°C (73°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec323142495871767468504234
Data source: Temperature data for Aurora 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 Aurora

In Aurora in December, the precipitation amount is 7 mm (0.3 in) over a period of 2 days.

December Precipitation Trends in Aurora

The chart displays monthly precipitation patterns in Aurora, 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 Aurora, December typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec15165038793942342224147
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Aurora

In Aurora in December, humidity is 80%. With an average temperature of 1°C (35°F), this humidity feels like a cold, damp embrace that makes traveling quite uncomfortable, as it seeps into your clothes and makes the air feel heavier, making it hard to stay warm and dry while exploring.

December Average Humidity in Aurora

This chart illustrates the average monthly humidity levels in Aurora, 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 Aurora is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%75%66%62%74%76%75%80%79%77%74%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Aurora

In Aurora 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 Aurora, you can check the information here.

Maximum UV Index Levels in Aurora for December

The chart shows the monthly maximum UV Index (UVI) for Aurora 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 Aurora typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45810111212119743
Data source: Aurora 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 Aurora Compares to Other Months

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

This table compares monthly weather conditions in Aurora, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)15 mm (0.6 inches)74%moderate
February Weather-1°C (31°F)16 mm (0.6 inches)75%moderate
March Weather6°C (42°F)50 mm (2.0 inches)66%very high
April Weather10°C (50°F)38 mm (1.5 inches)62%very high
May Weather14°C (58°F)79 mm (3.1 inches)74%extreme
June Weather22°C (71°F)39 mm (1.6 inches)76%extreme
July Weather24°C (76°F)42 mm (1.7 inches)75%extreme
August Weather23°C (74°F)34 mm (1.3 inches)80%extreme
September Weather20°C (68°F)22 mm (0.9 inches)79%very high
October Weather10°C (51°F)24 mm (0.9 inches)77%high
November Weather5°C (42°F)14 mm (0.6 inches)74%moderate
December Weather1°C (35°F)7 mm (0.3 inches)80%moderate

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