January Weather in Groom, United States

Last updated: June 24, 2025

In January, the average temperature in Groom, United States is a chilly 3°C (38°F), with potential fluctuations ranging from a brisk -18°C (-1°F) to a surprisingly warm 26°C (79°F). Expect about 21 mm (0.8 in) of precipitation over roughly 3 days, while the average humidity hovers around a comfortable 75%.

January Temperature in Groom

In January in Groom, the average temperature is 3°C (38°F). The maximum can reach 26°C (79°F), and the minimum can be as low as -18°C (-1°F). It's advisable to pack layers to prepare for a wide range of temperatures during your travels.

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

The chart illustrates January temperature patterns in Groom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Groom, January typically has an average temperature of 3°C (38°F), with highs reaching up to 26°C (79°F) and lows dropping to around -18°C (-1°F).

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

January Precipitation in Groom

In Groom in January, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

January Precipitation Trends in Groom

The chart displays monthly precipitation patterns in Groom, 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 Groom, January typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 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 Groom

In Groom in January humidity is 75%. With an average temperature of 3°C (38°F), this humidity feels like a chill that clings to your skin, making outdoor exploration uncomfortable and urging you to seek warmth indoors.

January Average Humidity in Groom

This chart illustrates the average monthly humidity levels in Groom, 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 Groom is approximately 75%, 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 Groom

In Groom 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 Groom for better planning.

Maximum UV Index Levels in Groom for January

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

Data source: Groom 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 Groom Compares to Other Months

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

This table compares monthly weather conditions in Groom, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	21 mm (0.8 inches)	75%	moderate
February Weather	4°C (39°F)	14 mm (0.6 inches)	76%	high
March Weather	10°C (50°F)	46 mm (1.8 inches)	64%	very high
April Weather	14°C (57°F)	35 mm (1.4 inches)	70%	extreme
May Weather	19°C (67°F)	79 mm (3.1 inches)	78%	extreme
June Weather	24°C (76°F)	48 mm (1.9 inches)	81%	extreme
July Weather	26°C (79°F)	42 mm (1.7 inches)	82%	extreme
August Weather	25°C (78°F)	49 mm (1.9 inches)	78%	extreme
September Weather	22°C (71°F)	52 mm (2.0 inches)	72%	very high
October Weather	14°C (58°F)	63 mm (2.5 inches)	73%	high
November Weather	9°C (48°F)	14 mm (0.5 inches)	80%	moderate
December Weather	5°C (41°F)	21 mm (0.8 inches)	81%	moderate