January Weather in Jonesborough, United States

Last updated: June 24, 2025

In January, the average temperature in Jonesborough, United States hovers around 4°C (39°F). Expect a minimum chill of -18°C (0°F) while the mercury can reach highs of 24°C (76°F). During this time, precipitation amounts to 97 mm (3.8 in) spread over approximately 13 days, contributing to an average humidity level of 88%. Prepare for a mix of cold and moisture as you navigate the month!

January Temperature in Jonesborough

In January in Jonesborough, the average temperature is 4°C (39°F). The maximum can reach 24°C (76°F), while the minimum can be as low as -18°C (0°F). Travelers should prepare for a wide range of temperatures and pack accordingly to enjoy their stay.

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

The chart illustrates January temperature patterns in Jonesborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jonesborough, January typically has an average temperature of 4°C (39°F), with highs reaching up to 24°C (76°F) and lows dropping to around -18°C (0°F).

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

January Precipitation in Jonesborough

In Jonesborough in January, the precipitation amount is 97 mm (3.8 in) over the course of 13 days.

January Precipitation Trends in Jonesborough

The chart displays monthly precipitation patterns in Jonesborough, 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 Jonesborough, January typically receives around 97 mm (3.8 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 Jonesborough

In Jonesborough in January, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.

January Average Humidity in Jonesborough

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

In Jonesborough in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Jonesborough for better planning.

Maximum UV Index Levels in Jonesborough for January

The chart shows the monthly maximum UV Index (UVI) for Jonesborough 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 Jonesborough typically reaches 4, which falls under the moderate exposure category.

Data source: Jonesborough 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 Jonesborough Compares to Other Months

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

This table compares monthly weather conditions in Jonesborough, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	97 mm (3.8 inches)	88%	moderate
February Weather	7°C (44°F)	143 mm (5.6 inches)	88%	high
March Weather	9°C (49°F)	128 mm (5.1 inches)	87%	very high
April Weather	13°C (56°F)	133 mm (5.2 inches)	84%	very high
May Weather	18°C (65°F)	120 mm (4.7 inches)	84%	extreme
June Weather	22°C (71°F)	111 mm (4.4 inches)	83%	extreme
July Weather	24°C (75°F)	84 mm (3.3 inches)	79%	extreme
August Weather	23°C (73°F)	105 mm (4.1 inches)	66%	very high
September Weather	21°C (70°F)	85 mm (3.4 inches)	67%	very high
October Weather	16°C (60°F)	116 mm (4.5 inches)	76%	very high
November Weather	8°C (46°F)	81 mm (3.2 inches)	89%	moderate
December Weather	6°C (42°F)	130 mm (5.1 inches)	88%	moderate