January Weather in Brilliant, United States

Last updated: June 24, 2025

In January, the average temperature in Brilliant, United States hovers around 7°C (45°F). Temperatures can fluctuate significantly, ranging from a chilly -14°C (7°F) at their lowest to a balmy 25°C (77°F) at their peak. Expect 121 mm (4.8 in) of precipitation over about 9 days, accompanied by an average humidity of 85%, creating a distinctly damp atmosphere.

January Temperature in Brilliant

In January in Brilliant, the average temperature is 7°C (45°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -14°C (7°F). It's advisable to prepare for a wide range of temperatures when planning your visit.

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

The chart illustrates January temperature patterns in Brilliant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brilliant, January typically has an average temperature of 7°C (45°F), with highs reaching up to 25°C (77°F) and lows dropping to around -14°C (7°F).

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

January Precipitation in Brilliant

In Brilliant in January, the precipitation amount is 121 mm (4.8 in) over the course of 9 days.

January Precipitation Trends in Brilliant

The chart displays monthly precipitation patterns in Brilliant, 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 Brilliant, January typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 9 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 Brilliant

In Brilliant in January, humidity is 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

January Average Humidity in Brilliant

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

In Brilliant 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 Brilliant for better planning.

Maximum UV Index Levels in Brilliant for January

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

Data source: Brilliant 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 Brilliant Compares to Other Months

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

This table compares monthly weather conditions in Brilliant, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	121 mm (4.8 inches)	85%	moderate
February Weather	10°C (50°F)	195 mm (7.7 inches)	84%	high
March Weather	14°C (57°F)	175 mm (6.9 inches)	82%	very high
April Weather	17°C (62°F)	171 mm (6.7 inches)	82%	very high
May Weather	22°C (72°F)	122 mm (4.8 inches)	82%	extreme
June Weather	25°C (77°F)	144 mm (5.7 inches)	79%	extreme
July Weather	27°C (80°F)	112 mm (4.4 inches)	82%	extreme
August Weather	26°C (80°F)	126 mm (5.0 inches)	77%	extreme
September Weather	24°C (76°F)	98 mm (3.9 inches)	74%	very high
October Weather	19°C (66°F)	111 mm (4.4 inches)	73%	high
November Weather	11°C (52°F)	73 mm (2.9 inches)	85%	moderate
December Weather	9°C (49°F)	155 mm (6.1 inches)	88%	moderate