Official meteorological observations from stations in Qingdao have established a daily maximum temperature of 31°C on September 15, driving the market-implied probability to 100% for that outcome. Real-time surface data and automated weather network readings show peak conditions aligning precisely with this threshold under prevailing atmospheric patterns, including moderate humidity and limited daytime heating. Historical September baselines for the region typically range 24–28°C, making the current reading a clear deviation supported by verified station reports rather than model projections alone. Minor uncertainty persists around potential post-peak revisions or microclimate variations at secondary sites, though such adjustments rarely alter the official maximum once recorded.