Traders overwhelmingly backed the 76-77°F range for Miami’s June 1 minimum because National Weather Service guidance and NOAA ensemble models consistently projected overnight lows in the mid-to-upper 70s under a persistent warm, moist subtropical air mass typical of early June. Climatological averages for the date center on 76–78°F with minimal day-to-day variability absent a cold front or unusual radiative cooling, and no such synoptic features appeared in recent model runs. This strong consensus left only trace probability for cooler or warmer outliers. A realistic shift would require an unexpected late-May frontal passage or revised observational data from Miami International Airport, though such changes remained unlikely given stable atmospheric conditions through the resolution window.