January Weather in Wyoming, United States

Last updated: June 24, 2025

In January, the average temperature in Wyoming, United States hovers around -4°C (26°F). Minimum temperatures can plunge as low as -31°C (-23°F), while the maximum can reach a mild 13°C (56°F). Expect 58 mm (2.3 in) of precipitation spread over 8 days, with an average humidity of 82%, creating a chilly yet intriguing atmosphere.

January Temperature in Wyoming

In January in Wyoming, the average temperature is -4°C (26°F), with a maximum that can reach 13°C (56°F) and a minimum that can be as low as -31°C (-23°F). Travelers should be prepared for significant temperature fluctuations and dress warmly for outdoor activities.

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

The chart illustrates January temperature patterns in Wyoming, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wyoming, January typically has an average temperature of -4°C (26°F), with highs reaching up to 13°C (56°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in Wyoming

In Wyoming in January, the precipitation amount is 58 mm (2.3 in) over a span of 8 days.

January Precipitation Trends in Wyoming

The chart displays monthly precipitation patterns in Wyoming, 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 Wyoming, January typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 8 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 Wyoming

In Wyoming in January humidity is 82%. With an average temperature of -4°C (26°F), this humidity feels like an icy blanket enveloping you, making every step outside a battle against the chill and dampness—where the cold bites deeper, and the air feels heavy, reminding you that even in the winter, the moisture can be overwhelming for any traveler unprepared for such conditions.

January Average Humidity in Wyoming

This chart illustrates the average monthly humidity levels in Wyoming, 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 Wyoming is approximately 82%, 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 Wyoming

In Wyoming 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 Wyoming, you can check the information here.

Maximum UV Index Levels in Wyoming for January

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

Data source: Wyoming 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 Wyoming Compares to Other Months

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

This table compares monthly weather conditions in Wyoming, 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 (26°F)	58 mm (2.3 inches)	82%	moderate
February Weather	-2°C (28°F)	65 mm (2.6 inches)	83%	moderate
March Weather	5°C (41°F)	104 mm (4.1 inches)	84%	high
April Weather	10°C (50°F)	115 mm (4.5 inches)	85%	very high
May Weather	17°C (63°F)	162 mm (6.4 inches)	79%	very high
June Weather	23°C (74°F)	159 mm (6.3 inches)	82%	extreme
July Weather	25°C (77°F)	103 mm (4.1 inches)	80%	very high
August Weather	23°C (74°F)	68 mm (2.7 inches)	81%	very high
September Weather	21°C (69°F)	88 mm (3.5 inches)	80%	very high
October Weather	13°C (55°F)	133 mm (5.2 inches)	82%	high
November Weather	4°C (40°F)	55 mm (2.2 inches)	88%	moderate
December Weather	1°C (34°F)	51 mm (2.0 inches)	84%	low