Last I checked, we don't live near Jackson Hole Wyoming, where temperatures change 30-40 degrees daily. But in Maryland the other week, we had snow on Monday and warm sunshine by Thursday. Crazy! These photos were taken 4 days apart on March 5th (snow) and 8th (sun). My winter iris tends to bloom in early and late winter. I had lots of winter iris this year with mild temperatures. By late February, the daffodils were blooming at the same time as the winter iris, very early for daffys.