Weather will likely play an important role when you plan your trip to Ellendale, 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 68°F, while the coldest months are January and February with an average of 19°F. The snowiest months in Ellendale are April, March, December, and January, with each month seeing an average of 11 inches of snowfall.