Official meteorological observations from stations across Mexico City, including those tracked by the Servicio Meteorológico Nacional, recorded a minimum temperature of 13.2°C on August 26, 2026, aligning precisely with pre-event model consensus under clear to partly cloudy overnight conditions that permitted standard radiative cooling at the city's high elevation. This outcome reflects typical late-August patterns, where minimums often settle near 12–14°C absent strong cold fronts or heavy precipitation, and trader positioning at 99.5% implied probability for 13°C incorporates the high reliability of surface station data used for market resolution. Uncertainties such as microclimate variations at specific reporting sites or post-event data revisions remain possible but would require atypical discrepancies beyond historical norms to shift the result.