Toronto's weather in mid-April typically features spring warmth, with historical highs averaging between 12-15°C (54-59°F). A day with a maximum temperature of 1°C or below is statistically unusual this late in the season, as the city's spring transition is well established. The prediction market currently prices the probability of such a cold day at just 2% on the YES side, reflecting strong market consensus that temperatures will exceed this threshold. This low probability indicates broad trader confidence that April 20 will bring typical spring conditions or warmer weather. The market resolves based on Environment Canada's official daily high temperature recording for Toronto, making it a straightforward, verifiable event with no ambiguity. While 2% YES odds signal high confidence in above-freezing temperatures, the small remainder reflects acknowledgment of weather's inherent unpredictability and the possibility of unusual spring cold snaps. Historical volatility in transitional seasons keeps a tail risk priced in, though traders heavily favor warmer conditions. The market has maintained steady interest with $1606 in 24-hour volume.