January Weather in Appalachia, United States

Last updated: June 24, 2025

In Appalachia, United States, the average temperature in January hovers around 2°C (36°F), with extremes ranging from a chilly -19°C (-2°F) to a warm 22°C (71°F). Expect significant precipitation during this time, averaging 95 mm (3.7 in) over 13 days. Coupled with an average humidity level of 88%, be prepared for a damp and cool atmosphere.

January Temperature in Appalachia

In January in Appalachia, the average temperature is 2°C (36°F), with maximums reaching 22°C (71°F) and minimums dropping as low as -19°C (-2°F). This diverse temperature range makes Appalachia an ideal destination for travelers looking to experience both chilly and mild weather.

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

The chart illustrates January temperature patterns in Appalachia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Appalachia, January typically has an average temperature of 2°C (36°F), with highs reaching up to 22°C (71°F) and lows dropping to around -19°C (-2°F).

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

January Precipitation in Appalachia

In Appalachia in January, the precipitation amount is 95 mm (3.7 in) over the course of 13 days.

January Precipitation Trends in Appalachia

The chart displays monthly precipitation patterns in Appalachia, 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 Appalachia, January typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 13 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 Appalachia

In Appalachia in January, humidity is 88%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making traveling uncomfortable and energy-draining as every step through the chill seems heavier in the thick air.

January Average Humidity in Appalachia

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

In Appalachia 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 Appalachia, you can check the information here.

Maximum UV Index Levels in Appalachia for January

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

Data source: Appalachia 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 Appalachia Compares to Other Months

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

This table compares monthly weather conditions in Appalachia, 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 (36°F)	95 mm (3.7 inches)	88%	moderate
February Weather	5°C (41°F)	180 mm (7.1 inches)	88%	high
March Weather	8°C (47°F)	135 mm (5.3 inches)	87%	very high
April Weather	12°C (54°F)	160 mm (6.3 inches)	84%	very high
May Weather	18°C (64°F)	146 mm (5.8 inches)	84%	extreme
June Weather	21°C (69°F)	147 mm (5.8 inches)	83%	extreme
July Weather	23°C (73°F)	130 mm (5.1 inches)	79%	extreme
August Weather	22°C (72°F)	147 mm (5.8 inches)	66%	very high
September Weather	20°C (68°F)	121 mm (4.8 inches)	67%	very high
October Weather	15°C (58°F)	139 mm (5.5 inches)	76%	high
November Weather	7°C (44°F)	78 mm (3.1 inches)	89%	moderate
December Weather	4°C (40°F)	127 mm (5.0 inches)	88%	moderate