The humid continental climate is a climate found over large areas of land masses in the temperate regions of the mid-latitudes where there is a zone of conflict between polar and tropical air masses. The humid continental climate is marked by variable weather patterns and a large seasonal temperature variance. The seasonal temperature variance can be as great as 33° Celsius, but is typically about 15-22°C (27-40)° Fahrenheit). The temperature difference between the warmest and coldest months increases as one moves further inland and away from the moderating influence of the ocean. Places with a hottest month temperature above 10 °C and a coldest month temperature below -3°C, and which do not meet the criteria for an arid climate, are classified as continental.It is most prominent in North America, Europe and Asia.