By John Mattingly Songwriter Leonard Cohen’s “Everybody Knows” should include the dicta: we need the rain like the rain needs the sky. The Sangre de Christo mountains are as bare as most of us have ever seen them in mid-May. On average, peak runoff from the Sangres is the last two weeks of May, and as spring becomes summer there are lingering snow patterns in the canyons, usually in July, that indicate when the snow is about half gone. The half-gone patterns were seen in early March this year, and the traces of snow near Sangre summits are no more ...