Denver, Colorado experiences variable spring weather in mid-April, with typical daily high temperatures ranging from 55-65°F during this season. A highest temperature of only 30-31°F on April 20 would represent an unusually cold day, significantly below historical April averages and well into the freezing range. Such a cold snap would be notable for late spring in Denver and would require a significant atmospheric pattern shift. This prediction market tracks the precise daily high temperature as recorded by the National Weather Service in Denver, making resolution entirely objective and verifiable. The current 0% odds on YES reflect strong market consensus that such a cold outcome is extremely unlikely given both seasonal patterns and current weather modeling. Market participants are effectively pricing in much warmer conditions, consistent with typical spring warming trends across the region in mid-to-late April. The significant decline in YES odds over the past 24 hours suggests that weather forecasts have shifted toward higher temperatures, reducing the probability of this cold scenario. This daily temperature market exemplifies how prediction markets track specific weather variables, with real-time odds adjusting continuously as new meteorological forecast data emerges and market participants update their positions.