Originally Posted by partireper.it
has it ever been unusually warmer than below 40 celcius in that area during march april?
By the middle of March it is very unusual for the temperatures to get as low as -40°C/F, and by the end of March/first of April it may get above freezing during the day but down to -30°C/-22°F at night.
Something to be aware of - the warming temperatures of spring often bring late winter snowstorms. As you travel north that time of year you may pass through a band of such weather, but once you get into winter weather, it can be quite nice with clear skies.