What was the weather like at the Battle of Stalingrad?

During the Soviet-German War, the Soviet army carried out a series of strategic offensive and defensive campaigns from1July 1942 to1February 2, 1943 to defend Stalingrad (now Volgograd) and smash the heavy German group in Stalingrad. Hitler wanted to launch a blitzkrieg against Stalingrad before the arrival of winter, but due to the tenacious resistance of Soviet soldiers, the battle was postponed until winter. Due to a series of problems caused by the arrival of winter, the German army was defeated. So the weather of Stalingrad campaign is: from hot summer to cold winter. The battle of Stalingrad should be winter, and it is the kind of cold with heavy snow.