A guy was watching TV in Moscow, and the weather forecaster says that it's -35C (-31F) in Irkutsk, Siberia.
The guy is impressed, and he remembers that he had a classmate who moved to Irkutsk. So he finds his number and calls him. "Hey, how are you doing? I heard you have really terrible temperature in Irkutsk, right?" "No, why, we have, like, -5C (23F) here", replies his friend. "Oh, and the weather forecaster says that you have -35!" "Ah, it's probably outside", friend replies.