How deep is the frost line in niagara?

How does solar energy hit the northern hemisphere in winter? What materials are igloos made from? Who wears the biggest ice hockey skates? What percentage of tornadoes occur in January? What does it mean when a guy says he's cold? What are latkets? How old are rossignol Concorde skis? What event does the Iditarod Dog race commemorate? What season would a town in the Southern Hemisphere have during January? The taiga was one of Kievan Russia's? How do you make wolf quest stop freezing? How do you winterize cub cadet? Who is mogul? Which has more friction sledding in soft snow or sledding in hard snow? How cold does it get in the polar tundra? What is the French word for freeze? Should heat pump be covered in bad weather? What mountain range is in Canada to Alabama? Do growth spurts affect balance and co-ordination? What are the positive and negative in hockey for PIM?