Official observations from New York City monitoring stations, including Central Park, recorded a daily maximum temperature of 80–81°F on September 11, 2026, under partly cloudy skies, light northwest winds, and near-normal humidity. This outcome aligns with ensemble model guidance and climatological baselines for mid-September, where average highs reach about 78°F, with no strong warm-air advection or clear-sky amplification to push readings higher. Trader consensus at 100% on the 80–81°F bin reflects verified post-event data from authoritative sources like NOAA-affiliated networks. Resolution could shift only under rare station-specific discrepancies or official data revisions, both improbable given consistent reports across sites.