Wearing a hat, gloves and layered dry insulating clothing is a necessity. Risk of frostbite with direct exposure over prolonged periods. 1600 - 1750 HIGH Important to keep active. Cover all skin. Take frequent warm up breaks.
Frostbite is possible on exposed skin over short periods of time.
Risk of frostbite can be lessened depending on the amount of direct sunshine. HIGH Be careful. Warning level for outdoor activity for areas and people who live in the more southern areas of Ontario. Judge your activity level against your own comfort. Frequent check for frostbite is recommended.