During the summer season, the hills are a favoured location due to pleasant weather conditions prevailing in the region. During that time, the plains of North India remain hot as the mercury remains sky high.
Meanwhile, winter remains severe over the hills of North India, but the Northern Plains also reel under harsh wintry conditions. In fact, as compared to the hills, the plains are more exposed to winter vagaries in terms of thick fog. The fog layer in the plains of North India do not let the temperatures arresting them at the lower range only.