Resolution criteria

This market resolves to YES if the Swedish Meteorological and Hydrological Institute (SMHI) records any measurable precipitation (greater than 0.0 mm) at the Stockholm-Observatoriekullen weather station on Thursday, June 4, 2026.

If no precipitation is recorded (0.0 mm), this market will resolve to NO.

• Source of Truth: Official meteorological observations published on the SMHI Stockholm-Observatoriekullen Station Page.

• Timeframe: The "Nederbörd dygn" (daily precipitation) period corresponding to June 4, 2026, measured from 08:00 Local Time on June 4 to 08:00 Local Time on June 5.

• Fallback: If data for the Stockholm-Observatoriekullen station is unavailable or fails to report, the creator will resolve the market using official SMHI reports for other stations within Stockholm municipality.

Background

Sweden covers a massive geographical expanse, making a country-wide "rain" metric highly likely to trigger a "YES" on any given day. To keep the market competitive and clear, the capital city of Stockholm—specifically the historic Stockholm-Observatoriekullen observation station—is used as the proxy for Sweden.

According to SMHI forecast data as of June 3, 2026, Stockholm has a 90% probability of precipitation on Thursday, June 4, with expected rainfall between 0.6 mm and 3.1 mm.

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