Weather is probably a major factor when you plan your trip to Rossland, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 18°C, while the coldest months are January and December, with an average of -4°C. The snowiest months in Rossland are January, December, October and February, with each month seeing an average of 27 cm of snowfall.