The market-implied certainty in the 88-89°F range stems directly from National Weather Service observations confirming Miami's official high temperature on October 13 fell within that narrow band. Standard protocols at primary reporting stations, such as Miami International Airport, use calibrated instruments to record daily maxima under consistent siting criteria, with data typically finalized within 24 hours. This outcome aligns with prevailing warm, stable air masses and minimal cloud cover or frontal activity that day. While post-event quality-control reviews occasionally adjust preliminary readings by 1°F, such revisions rarely exceed measurement uncertainty thresholds and would need to shift the value outside 88-89°F to alter resolution. No further model updates or forecast revisions apply once the calendar day closes.