Taking into account the local weather in Staraya Russa is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 61°F, while the coldest months are January and February with an average of 25°F. The snowiest months in Staraya Russa are January, February, November, and December, with each month seeing an average of 15 inches of snowfall.