Recent observational data from the Austin Bergstrom International Airport station confirm a daily high of at least 90°F on May 16, driving the market-implied odds for that outcome to 100%. Clear skies, southerly flow, and a warm air mass under high pressure favored strong daytime heating typical of mid-May climatology in central Texas, where afternoon temperatures frequently climb above seasonal averages. Official National Weather Service records and model verification show minimal cloud cover or precipitation interference, eliminating realistic pathways for cooler readings. Only an unexpected late-day cooling event or station measurement revision could alter resolution, though such scenarios remain highly improbable given the completed observation period.