January Weather in Knox, United States

Last updated: June 24, 2025

In Knox, United States, the average temperature in January hovers around -2°C (28°F), with a chill that can plunge to a minimum of -29°C (-20°F) and occasionally warm up to a maximum of 18°C (65°F). This month typically sees 73 mm (2.9 in) of precipitation spread over 8 days, creating a wet and humid atmosphere with an average humidity level of 85%.

January Temperature in Knox

In January in Knox, the average temperature is -2°C (28°F). The maximum can reach 18°C (65°F), and the minimum can be as low as -29°C (-20°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for both chilly and mild conditions.

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

The chart illustrates January temperature patterns in Knox, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Knox, January typically has an average temperature of -2°C (28°F), with highs reaching up to 18°C (65°F) and lows dropping to around -29°C (-20°F).

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

January Precipitation in Knox

In Knox in January, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

January Precipitation Trends in Knox

The chart displays monthly precipitation patterns in Knox, 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 Knox, January typically receives around 73 mm (2.9 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 Knox

In Knox in January, humidity is 85%. With an average temperature of -2°C (28°F), this humidity feels like an icy grip that clings uncomfortably to your skin, making every step feel heavier and hastening the chill that seeps into your bones, discouraging long outdoor excursions and leaving you yearning for warmth and shelter.

January Average Humidity in Knox

This chart illustrates the average monthly humidity levels in Knox, 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 Knox is approximately 85%, 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 Knox

In Knox in January, 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 Knox, you can check the information here.

Maximum UV Index Levels in Knox for January

The chart shows the monthly maximum UV Index (UVI) for Knox 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 Knox typically reaches 3, which falls under the moderate exposure category.

Data source: Knox 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 Knox Compares to Other Months

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

This table compares monthly weather conditions in Knox, 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)	73 mm (2.9 inches)	85%	moderate
February Weather	-1°C (30°F)	75 mm (2.9 inches)	85%	moderate
March Weather	5°C (40°F)	101 mm (4.0 inches)	86%	high
April Weather	10°C (50°F)	106 mm (4.2 inches)	87%	very high
May Weather	17°C (62°F)	163 mm (6.4 inches)	81%	very high
June Weather	23°C (73°F)	124 mm (4.9 inches)	82%	very high
July Weather	24°C (76°F)	116 mm (4.6 inches)	81%	very high
August Weather	23°C (73°F)	104 mm (4.1 inches)	79%	very high
September Weather	20°C (68°F)	72 mm (2.8 inches)	78%	very high
October Weather	13°C (56°F)	122 mm (4.8 inches)	81%	high
November Weather	5°C (41°F)	76 mm (3.0 inches)	89%	moderate
December Weather	1°C (34°F)	61 mm (2.4 inches)	86%	low