January Weather in Junction, United States

Last updated: June 24, 2025

In January, the average temperature in Junction, United States hovers around -5°C (23°F). Expect a chilly range, with minimum temperatures dropping to -24°C (-11°F) and highs peaking at 9°C (48°F). Precipitation is modest, averaging 41 mm (1.6 in) across about 6 days. Coupled with an average humidity of 87%, this month presents a wintry experience that is both refreshing and crisp.

January Temperature in Junction

In January in Junction, the average temperature is -5°C (23°F), with a maximum that can reach 9°C (48°F) and a minimum that can drop as low as -24°C (-11°F). Be prepared for cold weather and dress in layers if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Junction, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Junction, January typically has an average temperature of -5°C (23°F), with highs reaching up to 9°C (48°F) and lows dropping to around -24°C (-11°F).

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

January Precipitation in Junction

In Junction in January, the precipitation amount is 41 mm (1.6 in) over the course of 6 days.

January Precipitation Trends in Junction

The chart displays monthly precipitation patterns in Junction, 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 Junction, January typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 6 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 Junction

In Junction in January humidity is 87%. With an average temperature of -5°C (23°F), this humidity feels like a heavy, damp blanket enveloping you, making even the cold air seem more biting and clammy, which can be quite uncomfortable for traveling.

January Average Humidity in Junction

This chart illustrates the average monthly humidity levels in Junction, 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 Junction is approximately 87%, 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 Junction

In Junction 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 Junction for better planning.

Maximum UV Index Levels in Junction for January

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

Data source: Junction 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 Junction Compares to Other Months

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

This table compares monthly weather conditions in Junction, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	41 mm (1.6 inches)	87%	moderate
February Weather	-4°C (25°F)	51 mm (2.0 inches)	88%	high
March Weather	0°C (32°F)	52 mm (2.0 inches)	77%	very high
April Weather	5°C (41°F)	36 mm (1.4 inches)	69%	extreme
May Weather	11°C (52°F)	34 mm (1.3 inches)	54%	extreme
June Weather	19°C (66°F)	6 mm (0.3 inches)	45%	extreme
July Weather	22°C (71°F)	23 mm (0.9 inches)	37%	extreme
August Weather	21°C (70°F)	21 mm (0.8 inches)	34%	extreme
September Weather	16°C (61°F)	17 mm (0.7 inches)	47%	very high
October Weather	7°C (45°F)	28 mm (1.1 inches)	67%	high
November Weather	3°C (37°F)	25 mm (1.0 inches)	82%	high
December Weather	-4°C (25°F)	35 mm (1.4 inches)	87%	moderate