Weather will likely play an important role when you plan your trip to Kaleva, and keep 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 temp of 66°F, while the coldest months are February and January with an average of 27°F. The snowiest months in Kaleva are January, February, March, and December, with each month seeing an average of 15 inches of snowfall.