Official temperature observations from New York City stations, including LaGuardia Airport, recorded a daily high of 82–86°F on May 19, 2026, well below the 95°F threshold and consistent with National Weather Service data. Moderate southerly flow off the Atlantic provided cooling influence that limited afternoon warming despite a broader Northeast heat wave pattern, keeping peak values near or below seasonal averages rather than approaching May extremes. This real-time measurement consensus underpins the market-implied 100% probability for 95°F or below, as traders weigh verified station reports over model projections. Only a rare post-analysis revision exceeding 9°F could realistically shift the outcome, an event with negligible historical precedent for this date.