January Weather in Weirton, United States

Last updated: June 24, 2025

In Weirton, United States, the average temperature in January hovers around -1°C (31°F). However, expect a dramatic range, with minimums plummeting to -22°C (-7°F) and maximums soaring to 21°C (70°F). During this month, precipitation averages 90 mm (3.6 in) over 12 days, contributing to an average humidity of 88%.

January Temperature in Weirton

In January in Weirton, the average temperature is -1°C (31°F), with maximums reaching 21°C (70°F) and minimums dropping as low as -22°C (-7°F). Be prepared for a wide range of temperatures if you're traveling during this time.

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

The chart illustrates January temperature patterns in Weirton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Weirton, January typically has an average temperature of -1°C (31°F), with highs reaching up to 21°C (70°F) and lows dropping to around -22°C (-7°F).

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

January Precipitation in Weirton

In Weirton in January, the precipitation amount is 90 mm (3.6 in) spread over 12 days.

January Precipitation Trends in Weirton

The chart displays monthly precipitation patterns in Weirton, 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 Weirton, January typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Weirton

In Weirton in January, humidity is 88%. With an average temperature of -1°C (31°F), this humidity feels like a biting cold that penetrates your clothing, making outdoor exploration challenging and the air clingy, adding an extra chill that can make you feel even colder than the temperature suggests.

January Average Humidity in Weirton

This chart illustrates the average monthly humidity levels in Weirton, 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 Weirton 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 Weirton

In Weirton 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 Weirton, you can check the information here.

Maximum UV Index Levels in Weirton for January

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

Data source: Weirton 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 Weirton Compares to Other Months

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

This table compares monthly weather conditions in Weirton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	90 mm (3.6 inches)	88%	moderate
February Weather	1°C (35°F)	115 mm (4.5 inches)	88%	moderate
March Weather	5°C (41°F)	103 mm (4.0 inches)	87%	high
April Weather	11°C (51°F)	130 mm (5.1 inches)	87%	very high
May Weather	17°C (62°F)	134 mm (5.3 inches)	81%	very high
June Weather	21°C (70°F)	131 mm (5.2 inches)	83%	very high
July Weather	24°C (75°F)	134 mm (5.3 inches)	82%	very high
August Weather	23°C (73°F)	89 mm (3.5 inches)	76%	very high
September Weather	20°C (68°F)	120 mm (4.7 inches)	77%	very high
October Weather	14°C (57°F)	120 mm (4.7 inches)	82%	high
November Weather	5°C (42°F)	92 mm (3.6 inches)	89%	moderate
December Weather	2°C (36°F)	99 mm (3.9 inches)	86%	low