Seattle experiences variable spring weather in mid-April, with daily high temperatures typically ranging from 50-55°F at this time of year. This market narrows the prediction to whether the highest temperature on April 19 specifically falls within the narrow 46-47°F band, suggesting cooler than average conditions. The current market pricing at 0% YES reflects strong consensus that conditions on that date will either be warmer or cooler than this specific range. Weather forecasts made 1-2 days before the event become increasingly reliable, and this market will resolve against official National Weather Service temperature readings from Seattle's primary weather station. The odds suggest market participants expect either a warmer April 19 with highs above 47°F, or potentially unseasonably cold conditions below 46°F, making this narrow band an unlikely outcome. Historical April 19 patterns in Seattle show significant variability year to year, and the 0% pricing indicates market consensus is ruling out this specific temperature range as improbable given broader seasonal trends and near-term forecasts.