If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Reno: The hottest months are usually July and August, with an average temperature of 22°C, while the coldest months are December and January, with an average of 1°C. The snowiest months in Reno are March, February, January and April, with each month seeing an average of 19 cm of snowfall.