January weather forecast
Wyoming, USA

January stands as one of the coldest months in Wyoming, with temperatures often reaching their lowest points of the year. Notably, Riverside holds the record for the coldest temperature ever recorded in the state at -66°F (-54.4°C) on February 9, 1933. In January, average low temperatures span from 0°F (-17.8°C) to 18°F (-7.8°C) depending on the region and elevation. The frigid weather is more extreme in the highlands compared to the plains. Snowfall is substantial, especially in mountainous areas where it can reach up to 200" (5080mm), while the plains also accumulate a significant amount, around 50" (1270mm).

When compared to December, January does not offer much relief from the cold, and the conditions generally persist into February. Winds, particularly in the vast plains, blow at high speeds, but their impact is mitigated upon reaching the high mountain ranges. While not common, Chinook winds can sometimes provide temporary warmth during this icy month. January's weather makes outdoor activities challenging and results in a lull in tourist activity, save for those interested in winter sports.

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• Cheyenne - January »
  In Cheyenne in January, snow falls for 8.9 days, with typically accumulated 2.28" (58mm) of snow. The month with the least rainfall in Cheyenne is January, when the rain falls for 4.7 days and typically collects 0.43" (11mm) of precipitation.
• Casper - January »
  The months with the least rainfall in Casper are January, August and September Rain falls for 3.6 days and accumulates 0.43" (11mm) of rain. The months with the least rainfall in Casper are January, August and September Rain falls for 3.6 days and accumulates 0.43" (11mm) of rain.
• Laramie - January »
  The month with the least rainfall in Laramie is January, when the rain falls for 2.9 days and typically collects 0.35" (9mm) of precipitation. The months with the lowest UV index in Laramie are January through April, October through December, with an average maximum UV index of 2.
• Gillette - January »
  The month with the least rainfall in Gillette is January, when the rain falls for 2 days and typically collects 0.39" (10mm) of precipitation. The months with the lowest UV index in Gillette are January, February, April, November and December, with an average maximum UV index of 2.
• Rock Springs - January »
  In Rock Springs in January, during 13.3 snowfall days, 4.37" (111mm) of snow is typically accumulated. In Rock Springs in January, during 5.6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.
• Sheridan - January »
  The months with the lowest UV index in Sheridan are January through April, October through December, with an average maximum UV index of 2. The months with the lowest UV index in Sheridan are January through April, October through December, with an average maximum UV index of 2.
• Green River - January »
  In Green River in January, during 13.3 snowfall days, 4.37" (111mm) of snow is typically accumulated. January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Green River, Wyoming.
• Evanston - January »
  In Evanston, during January, snow falls for 14.3 days and regularly aggregates up to 7.36" (187mm) of snow. In Evanston, in January, it is raining for 6.5 days, with typically 0.94" (24mm) of accumulated precipitation.
• Riverton - January »
  Living through a Riverton January requires resilience, as the Wyoming winds, icy temperatures, and limited sunshine can pose challenges. The most humid month in Riverton is January, with an average relative humidity of 77%.
• Jackson - January »
  In Jackson, in January, snow falls for 22.1 days, with typically accumulated 25.91" (658mm) of snow. In Jackson, during January, snow falls for 22.1 days and regularly aggregates up to 25.91" (658mm) of snow.
• Cody - January »
  January and December are months with the least rain in Cody when the rain falls for 5.9 days and typically aggregates up to 0.28" (7mm) of rain. January and February, with an average relative humidity of 74%, are most humid months in Cody, Wyoming.
• Rawlins - January »
  In Rawlins, Wyoming, in January, snow falls for 13.9 days, with typically accumulated 4.49" (114mm) of snow. In Rawlins, in January, snow falls for 13.9 days, with typically accumulated 4.49" (114mm) of snow.