Historical clue formulations

• White out, say — 2025-01-03
• Having a white blanket — 2019-02-07
• White out — 2016-12-01
• Like many winter landscapes — 2011-05-17
• White and wet — 2008-10-12
• See 5-Across — 2007-03-01
• Like a winter wonderland — 2004-01-26
• White — 2002-06-01
• Very white — 1997-09-15
• Like mountains in winter — 1997-03-31