Historical clue formulations

• Downpour — 2025-01-13
• Flood — 2021-05-08
• Torrent — 2017-03-25
• Downpour — 2016-05-30
• Cataclysm — 2009-01-09
• 40 days and 40 nights event — 2007-08-05
• Drought ender — 2002-08-11