January Weather in Addison, United States

Last updated: June 24, 2025

In Addison, United States, the average temperature in January hovers around -6°C (21°F). Expect minimums to plunge to -30°C (-21°F), while temperatures can occasionally peak at 14°C (57°F). This month also sees an average precipitation of 77 mm (3.0 in) over approximately 10 days, accompanied by a high humidity level of 89%. Prepare for a wintry experience!

January Temperature in Addison

In January in Addison, the average temperature is -6°C (21°F). Maximums can reach 14°C (57°F) and minimums can be as low as -30°C (-21°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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 -6°C (21°F), with highs reaching up to 14°C (57°F) and lows dropping to around -30°C (-21°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 77 mm (3.0 in) spread over a duration of 10 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 77 mm (3.0 inches) of precipitation spread over approximately 10 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 89%. With an average temperature of -6°C (21°F), this humidity feels like an uncomfortable chill that seeps into your bones, making traveling outdoors an arduous task as the cold air mixes with dampness, often leaving you feeling cold and clammy despite layers of clothing.

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 89%, 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	-6°C (21°F)	77 mm (3.0 inches)	89%	low
February Weather	-4°C (24°F)	77 mm (3.0 inches)	88%	moderate
March Weather	0°C (31°F)	67 mm (2.6 inches)	86%	moderate
April Weather	7°C (44°F)	111 mm (4.4 inches)	84%	very high
May Weather	14°C (57°F)	87 mm (3.4 inches)	76%	very high
June Weather	19°C (66°F)	88 mm (3.5 inches)	72%	very high
July Weather	22°C (71°F)	110 mm (4.3 inches)	66%	very high
August Weather	21°C (69°F)	95 mm (3.7 inches)	64%	very high
September Weather	17°C (62°F)	64 mm (2.5 inches)	72%	high
October Weather	10°C (51°F)	131 mm (5.2 inches)	81%	moderate
November Weather	2°C (36°F)	98 mm (3.9 inches)	87%	moderate
December Weather	-3°C (27°F)	80 mm (3.2 inches)	84%	low