The temperature can dip below -5 during the winter in Vancouver .
< /ref > Despite normally mild winters resulting from the onshore flow over the North Pacific Current , occasional arrivals of cold arctic outflows ( sinking cold continental air that flows down though the Fraser Valley coastward ) in winter can sometimes last a week or more , however in many winters , these outflows barely affect the city or do not occur at all , but in most winters the city does get a cold snap which results in temperature dipping at least below -5°C .
Climate of Vancouver