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Kalshi Eye

Monthly Precipitation: Polymarket historical data

Monthly Precipitation is a monthly climate and weather series on Polymarket, with markets like “Will Seoul have between 50-70mm of precipitation in October?”. The Kalshi Eye archive lists 24 of its markets and has 9 days of daily Parquet files from October 15, 2026 to October 23, 2026, with order books, trades and on-chain fills.

Open Monthly Precipitation in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Polymarket data page.

Reading the files

Polymarket files are split by market, so a series spans several files a day. Pick the days in Markets or Downloads, or list them with the files API. How each file reads is on the Polymarket page.

Related Polymarket series

Figures as of October 24, 2026. All Polymarket series with pages are listed on Polymarket series.