Weather will likely play an important role when you plan your trip to Fort Yukon, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and June, with an average temperature of 15°C, while the coldest months are January and December, with an average of -22°C. The snowiest months in Fort Yukon are December, April, November and March, with each month seeing an average of 36 cm of snowfall.