If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Winnemucca: The hottest months are usually July and August with an average temp of 74°F, while the coldest months are January and December with an average of 33°F. The snowiest months in Winnemucca are January, April, March, and February, with each month seeing an average of 7 inches of snowfall.