January Weather in Addison, United States

Last updated: June 24, 2025

In Addison, United States, the average temperature in January hovers around -2°C (28°F). Be prepared for chilly conditions, as minimum temperatures can plunge to -19°C (-2°F), while the mercury may rise to a maximum of 12°C (54°F). Throughout this month, expect 107 mm (4.2 in) of precipitation spread over 8 days, and keep in mind the air will feel quite damp with an average humidity of 88%.

January Temperature in Addison

In January in Addison, the average temperature is -2°C (28°F). The maximum can reach 12°C (54°F), while the minimum can drop as low as -19°C (-2°F). Travelers should be prepared for a wide range of temperatures, making warm clothing essential for outdoor activities.

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

The chart illustrates January 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, January typically has an average temperature of -2°C (28°F), with highs reaching up to 12°C (54°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.

January Precipitation in Addison

In Addison in January, the total precipitation amount is 107 mm (4.2 in), occurring over a span of 8 days.

January Precipitation Trends in Addison

The chart displays monthly precipitation patterns in Addison, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Addison, January typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Addison

In Addison in January humidity is 88%. With an average temperature of -2°C (28°F), this humidity feels like an icy cling to your skin, making every breath feel brisk and sharp, while the dampness cuts through layers of clothing, leaving travelers yearning for warmth and comfort.

January Average Humidity in Addison

This chart illustrates the average monthly humidity levels in Addison, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Addison is approximately 88%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Addison

In Addison in January, 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 January

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

Data source: Addison January 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 January 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 January’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 January’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