
Will it rain in Seattle, WA on September 29?
Where will it rain on September 29?
AI analysis
This market resolves on whether it rains in Seattle on September 29, and the 'No' side wins if no precipitation is recorded in the city that day. Seattle has a rainy reputation, but the specific date and the definition of 'rain' make the outcome less obvious than it appears.
September in Seattle is a transition month: climatology shows the chance of measurable precipitation on a given late-September day is roughly 30–40%, not 90%. Many markets treat 'rain' as any measurable amount, which lifts the 'Yes' probability, but 'No' still remains likely on most individual days. Our 62% estimate for 'No' is based on local climatology and seasonal precipitation statistics.
The market prices 'No' at only 7%, which likely reflects the 'always raining in Seattle' stereotype and thin liquidity. For 'No' to win, no measurable precipitation must be recorded at the observation point that day, an event that occurs more often than the price implies.
The main risks: an atmospheric front or Pacific low could bring rain precisely on September 29; the wording of 'rain' and the choice of station (Sea-Tac versus downtown) can change the result. If the market counts trace amounts as rain, the 'Yes' probability rises.
Not investment advice. Trade at your own risk.