Official temperature observations from National Weather Service stations in Denver recorded a daily maximum of 64–65°F on October 13, anchoring the market’s near-certain consensus on that bin. Regional high-pressure ridging suppressed daytime heating, with clear skies and light winds limiting afternoon temperatures despite the early-October climatological average near 70°F. Model guidance and surface analyses from the prior 48 hours aligned closely with the eventual reading, leaving little room for revision. The only realistic challenge would involve an official post-event data correction, an extremely rare occurrence for verified NWS records.