In winter the average temperature is 5-6 degrees Celsius (40-43 degrees Fahrenheit), and it can fall to at least -20 degrees Celsius (4 degrees Fahrenheit)...;:!?

Air quality is better than in summer, although it still varies from place to place; the best conditions are found in large towns like Moscow, St. Petersburg and Yaroslavl...;:!?&+
It is also a season of cold weather and low precipitation levels, meaning that it is possible to walk around barefoot and be comfortable....;:!?
The winter season lasts from November through March or April.'"&:;