The knee is the largest joint in the human body and is considered the most complicated one. It is formed by the lower part of the femur, the tibial plateau and the knee cap.
Calgary's spring weather is unstable. Some April and May days are sunny and warm, indeed hot. Yet April, May and sometimes even June(!) can bring snow. When it snows in late spring / early summer, the snow typically is wet and heavy, unlike winter snow that more often is light and fluffy.
Calgary does get cold but dry and sunny with mild spells. The west coast of BC and Vancouver Island are damp. Very few warm days 20 or above until July. Alberta is the most comfortable weather in according to Environment Canada . Calgary has one of the milder winters of any large Canadian city Including Montreal and Ottawa.