Official measurements from Miami-area weather stations, including Miami International Airport, recorded a daily maximum of 88-89°F on October 5, driving the market's complete consensus. This outcome aligns with early October climatology for South Florida, where average highs reach 85-87°F amid moderate humidity, light winds, and partial cloud cover that limited additional daytime heating. National Weather Service data confirm stable synoptic conditions with no strong frontal passages or tropical moisture surges to alter temperatures. While official records undergo routine quality control, revisions remain uncommon; only an undetected sensor error or station-specific anomaly would realistically shift the final value outside this narrow band.