Official temperature records from Environment and Climate Change Canada confirm that Toronto's minimum on September 2 reached exactly 20 °C, aligning with pre-event model consensus and the observed overnight low under mainly cloudy skies with lingering thunderstorm activity. This outcome reflects typical early-September conditions, where average lows hover near 16 °C but recent humidity and cloud cover prevented further radiational cooling. The near-certain market pricing rests on verified station data rather than forecasts. Revisions to the official daily minimum from the primary observing site or discrepancies across multiple urban stations could theoretically alter resolution, though such adjustments remain rare once preliminary values are posted.