The primary rule trap is the discrepancy in location definition: the title broadly mentions 'NYC', and the public typically defaults to Central Park for NYC weather, but the resolution rules strictly specify data from the 'LaGuardia Airport (KLGA)' station. Temperatures between these two locations often vary by a few degrees Fahrenheit, easily misleading careless traders.

The title asks for the temperature in Seoul, but the rules explicitly state that resolution is based on data from the Incheon Intl Airport Station. Because Incheon and Seoul are geographically distinct with microclimate variations, traders who only read the title can be easily misled. Additionally, the market resolves to whole degrees Celsius, which introduces minor risks regarding how decimal temperatures are rounded or truncated.

On May 6, 2026, the price of the 25°C option surged from 26c to 70c. This was driven by the stabilization of same-day weather forecasts confirming a high of around 77°F (25°C), which significantly boosted market confidence. Between May 5 and May 6, 2026, the 26°C and 27°C options experienced notable declines, with the 27°C option plunging from 35c down to 9c. This occurred because updated forecasts revised the expected temperature downward, eliminating the likelihood of higher temperature outcomes.

May 5, 2026 - May 6, 2026: The price of the '22°C' option surged from 36.5c to 56c, and '23°C' rose from 10.3c to 22.4c, while '21°C' plummeted from 47.5c to 13.5c. This was driven by real-time meteorological data on the resolution day, which ruled out the slightly cooler 21°C scenario and locked expectations around the 22°C+ range. May 4, 2026 - May 5, 2026: The price of the '22°C' option surged from approximately 23.5c to 44.5c, while the '20°C' option plummeted from a peak of 24.5c to around 5c. This occurred because, as the resolution date approached, short-term weather forecast models converged significantly, confirming a warmer trend (highs around 22°C) and ruling out the likelihood of cooler temperatures.