Traders have aligned at 100% implied probability on the 80–81°F bin following official National Weather Service observations confirming that daily maximum at Central Park, New York City’s primary measurement site. Moderate southerly flow, partly cloudy skies, and standard May boundary-layer mixing produced afternoon warming that matched NOAA model consensus without exceeding expectations for intensification. This market-implied outcome aggregates real-capital assessments of verified data rather than projections. Only rare post-observation adjustments, such as station calibration revisions or official record corrections, could realistically alter resolution criteria.