the bottom drops out, and colder air becomes widespread across much of the eastern half of the country. Philadelphia’s high temperature on Tuesday is expected to be 45 degrees – its normal high for February 19th. The easiest way to protect plants from a hard freeze, is to bring them indoors, but if you can’t, covering them with sheets, towels or blankets draped over stakes or patio furniture can help trap the radiant heat from the ground. Temperatures are expected to rebound quickly across the Southeast in time for Easter Sunday.