Official National Weather Service observations recorded a maximum of 93°F in Miami on September 15, 2026, aligning precisely with the market's dominant 92-93°F outcome. This reading exceeded the 1991-2020 daily normal high of 89°F by about 4°F amid typical late-summer conditions featuring light easterly winds, partly cloudy skies, and minimal precipitation that allowed strong daytime heating. Historical data show highs in the low 90s occur regularly in mid-September, though records reach only 94-95°F. The near-certain trader consensus reflected convergence of real-time forecasts with climatological baselines and the absence of cooling influences such as heavy rain or stronger onshore flow. Only an unexpected measurement revision or station-specific anomaly could have altered the outcome.