Toronto's daily high temperature market for April 20 tracks whether the city will reach 11°C or higher during the day. This recurring daily market mirrors real-world weather conditions and serves as a straightforward resolution test using official Environment Canada data. At 0% YES odds, traders have priced in a consensus view that Toronto will experience cooler conditions, staying below the 11°C threshold. This is consistent with mid-April weather patterns in the Greater Toronto Area, where spring temperatures can be unpredictable. The 0% pricing doesn't necessarily mean the outcome is impossible, but rather reflects the current forecast confidence and recent weather trends. Historically, 11°C represents a mild spring day in Toronto, and the market's current odds suggest conditions will be colder. The market resolves at close on April 20 based on the highest recorded temperature at Toronto's primary weather station. The odds may shift if new weather forecasts emerge indicating a warming trend, though current conditions and forecasts appear stable at this low price point.