December Weather in Addison, United States

Last updated: June 24, 2025

In December, the average temperature in Addison, United States hovers around 0°C (33°F), making it a chilly time of year. Minimum temperatures can plunge to -19°C (-2°F), while the maximum can reach a milder 14°C (58°F). During this month, expect precipitation of about 143 mm (5.6 in) spread across 12 days, and with an average humidity of 84%, it's wise to bundle up and be prepared for damp conditions!

December Temperature in Addison

In December in Addison, the average temperature is 0°C (33°F). Maximums can reach 14°C (58°F) and minimums can be as low as -19°C (-2°F). It’s essential to pack for chilly conditions during your travels, as temperatures can vary significantly.

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

The chart illustrates December temperature patterns in Addison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Addison, December typically has an average temperature of 0°C (33°F), with highs reaching up to 14°C (58°F) and lows dropping to around -19°C (-2°F).

Data source: Temperature data for Addison generated using information from the Copernicus Climate Change Service.

December Precipitation in Addison

In Addison in December, the total precipitation amount is 143 mm (5.6 in) over the course of 12 days.

December Precipitation Trends in Addison

The chart displays monthly precipitation patterns in Addison, 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 Addison, December typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Addison

In Addison in December humidity is 84%. With average temperature 0°C (33°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less enjoyable and travel plans challenging.

December Average Humidity in Addison

This chart illustrates the average monthly humidity levels in Addison, 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 Addison is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Addison

In Addison 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 Addison, you can visit Hourly UV Index in Addison.

Maximum UV Index Levels in Addison for December

The chart shows the monthly maximum UV Index (UVI) for Addison 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 Addison typically reaches 2, which falls under the low exposure category.

Data source: Addison 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 Addison Compares to Other Months

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

This table compares monthly weather conditions in Addison, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	107 mm (4.2 inches)	88%	low
February Weather	-2°C (28°F)	103 mm (4.1 inches)	88%	moderate
March Weather	0°C (33°F)	82 mm (3.2 inches)	85%	moderate
April Weather	5°C (42°F)	137 mm (5.4 inches)	81%	high
May Weather	9°C (49°F)	107 mm (4.2 inches)	76%	very high
June Weather	14°C (57°F)	98 mm (3.9 inches)	74%	very high
July Weather	17°C (63°F)	80 mm (3.1 inches)	74%	very high
August Weather	18°C (64°F)	79 mm (3.1 inches)	74%	very high
September Weather	15°C (60°F)	99 mm (3.9 inches)	77%	high
October Weather	12°C (53°F)	115 mm (4.5 inches)	82%	moderate
November Weather	6°C (43°F)	141 mm (5.6 inches)	85%	moderate
December Weather	0°C (33°F)	143 mm (5.6 inches)	84%	low