Planning for the weather is a good way to make your trip to Shaver Lake relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 16°C, while the coldest months are February and January, with an average of -1°C. The snowiest months in Shaver Lake are March, January, February and May, with each month seeing an average of 44 cm of snowfall.