Shanghai experiences spring weather patterns in mid-April, typically featuring warm daytime temperatures and variable humidity. The question asks whether the highest recorded temperature on April 20 will not exceed 12°C, which represents unusually cold conditions for this period of the year. At 0% YES odds, the prediction market is currently pricing this outcome as extremely unlikely, reflecting typical April weather patterns in Shanghai where temperatures at this point generally range between 18°C and 25°C. The market has $12,733 in liquidity and has seen $3,073 in trading volume over the past 24 hours, indicating consistent interest in weather prediction markets. The resolution will be determined by the official maximum temperature recorded on April 20, using publicly available meteorological data from standard weather stations in Shanghai. With only a very low probability assigned by traders, any significant cold snap or unusual weather system would be required for the YES outcome to occur, making this a useful market for those interested in weather trading dynamics.