January Weather in Wyoming, United States

Last updated: June 24, 2025

In Wyoming, United States, the average temperature for January hovers around -3°C (26°F), with a minimum dipping to -24°C (-10°F) and a maximum reaching 15°C (58°F). Expect approximately 64 mm (2.5 in) of precipitation over 10 days, while the air remains notably humid with an average humidity of 87%. Prepare for a chilly and damp month!

January Temperature in Wyoming

In January in Wyoming, the average temperature is -3°C (26°F), with maximums reaching 15°C (58°F) and minimums dropping as low as -24°C (-10°F). Be prepared for a wide range of temperatures when traveling to Wyoming during this month.

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 -3°C (26°F), with highs reaching up to 15°C (58°F) and lows dropping to around -24°C (-10°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 64 mm (2.5 in) over a span of 10 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 64 mm (2.5 inches) of precipitation spread over approximately 10 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 87%. With an average temperature of -3°C (26°F), this humidity feels like walking through a thick fog, making travels uncomfortable and adding a chill that seeps into your bones.

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 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 Wyoming

In Wyoming in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Wyoming, you can visit Hourly UV Index in Wyoming.

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 2, which falls under the low 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	-3°C (26°F)	64 mm (2.5 inches)	87%	low
February Weather	-3°C (27°F)	70 mm (2.7 inches)	87%	moderate
March Weather	3°C (37°F)	67 mm (2.6 inches)	86%	moderate
April Weather	8°C (46°F)	91 mm (3.6 inches)	87%	very high
May Weather	15°C (60°F)	138 mm (5.4 inches)	82%	very high
June Weather	21°C (70°F)	119 mm (4.7 inches)	81%	very high
July Weather	24°C (75°F)	65 mm (2.6 inches)	78%	very high
August Weather	22°C (72°F)	73 mm (2.9 inches)	79%	very high
September Weather	19°C (66°F)	111 mm (4.4 inches)	79%	high
October Weather	12°C (53°F)	130 mm (5.1 inches)	82%	moderate
November Weather	4°C (39°F)	63 mm (2.5 inches)	87%	moderate
December Weather	0°C (32°F)	67 mm (2.6 inches)	86%	low