Seattle's weather on April 18 presents a specific temperature prediction market. The question narrows the range to 42-43°F for the daily high, a fairly cold threshold for mid-April in the Pacific Northwest. This market is resolvable against official National Weather Service data for Seattle-Tacoma International Airport. The current 0% odds for YES suggest traders view this exact temperature band as unlikely given April's typical warming patterns. However, spring weather in Seattle can be volatile, and unseasonably cold fronts do occur. The market reflects the low probability that the high will land within just two degrees—most outcomes cluster around slightly warmer ranges. Participants use historical temperature data and seasonal models to assess the likelihood. Unlike speculative outcomes, this market resolves objectively against a single historical data point: the official highest temperature recorded on that date. This makes it a clean prediction vehicle for those interested in weather forecasting accuracy or hedging heating costs. The market's low liquidity and trading volume suggest limited participation on this specific narrow range, which is typical for precise daily weather predictions. The 0% odds may also reflect the fact that mid-April in Seattle typically sees highs in the low-to-mid 50s rather than the low 40s.