Trader consensus at 100% implied probability for a 29°C high in Shanghai on October 13 reflects final observational data from local meteorological stations confirming that peak reading under clear to partly cloudy conditions with light variable winds. Recent model runs from regional agencies aligned closely with surface measurements, showing daytime warming to this level amid typical autumn patterns without significant cloud cover or frontal systems to suppress temperatures. Historical October averages for the city hover near 24–26°C, making this outcome stand out yet consistent with the day's verified conditions. Only an unforeseen post hoc data revision or station calibration adjustment could realistically alter the recorded maximum.