You'll likely spend much of your trip indoors, but if you want to see more of the area, taking a look at local weather data can help you. The hottest months are usually July and August with an average temp of 64°F, while the coldest months are January and February with an average of 16°F. The snowiest months in Deer River are April, March, December, and January, with each month seeing an average of 13 inches of snowfall.