Official temperature observations from National Weather Service stations in the Austin area recorded a daily maximum of 90–91°F on June 7, driving the market’s 100% consensus on that bin. These verified measurements, taken with standardized instruments at fixed locations, align with late-spring climatology for central Texas, where early June highs commonly reach the upper 80s to low 90s under typical subtropical high-pressure patterns. Model guidance and real-time surface data had pointed to similar values in the final 48 hours before the date, leaving little room for deviation. Only an extraordinary post-event data revision could alter the outcome, an event traders assign negligible probability given the robustness of the initial observations.