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January Weather in Wyoming, United States

Last updated: June 24, 2025

In January, the average temperature in Wyoming, United States hovers around 1°C (33°F). Expect some fluctuation, as temperatures can dip to a chilling -24°C (-11°F) or rise up to a pleasant 21°C (69°F). During this month, precipitation averages 80 mm (3.2 in) across approximately 10 days, contributing to a notable average humidity of 88%.

January Temperature in Wyoming

In January in Wyoming, the average temperature is 1°C (33°F). Maximum temperatures can reach 21°C (69°F), while minimums can drop to a chilly -24°C (-11°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.

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 1°C (33°F), with highs reaching up to 21°C (69°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec333745546674787571594439
Data source: Temperature data for Wyoming generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Wyoming

In Wyoming in January, the precipitation amount is 80 mm (3.2 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 80 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8010713711912713111089819699110
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Wyoming

In Wyoming in January humidity is 88%. With an average temperature of 1°C (33°F), this humidity feels like a damp chill wrapping around you, making it difficult to stay warm while traveling, as each breath carries a heavy, cold moisture that clings to your skin.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
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.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)80 mm (3.2 inches)88%moderate
February Weather3°C (37°F)107 mm (4.2 inches)88%moderate
March Weather7°C (45°F)137 mm (5.4 inches)87%high
April Weather12°C (55°F)119 mm (4.7 inches)85%very high
May Weather19°C (66°F)127 mm (5.0 inches)81%very high
June Weather23°C (74°F)131 mm (5.2 inches)82%very high
July Weather25°C (78°F)110 mm (4.3 inches)81%very high
August Weather24°C (75°F)89 mm (3.5 inches)73%very high
September Weather21°C (71°F)81 mm (3.2 inches)73%very high
October Weather15°C (59°F)96 mm (3.8 inches)78%high
November Weather7°C (44°F)99 mm (3.9 inches)89%moderate
December Weather4°C (39°F)110 mm (4.3 inches)87%moderate

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