April Mean Daily Maximum Temperatures

The map shows the mean daily maximum temperatures for April. Below-freezing maximum temperatures in April are restricted to northern Canada and the extreme northern portions of Ontario and Quebec adjacent to Hudson Bay. Lengthening days and strengthening sunshine bring about a moderation in temperature in all parts of the country. In the high Arctic, maximum temperatures range from -15 to -30ºC, so winter is very much present despite the arrival of spring weather across southern Canada.