
**Important information: The resolution rules for the RAINM contract have been amended. Starting with the March 2026 iteration, markets will resolve based on the first NWS Daily Climate Report containing full-month data. The current February 2026 iteration is unaffected by this change and will continue to resolve via NOAA’s Climate Data Online Daily Summaries.
The primary resolution link will be a sum of NOAA’s Climate Data Online Daily Summaries of precipitation at the weather station specified here: https://www.ncdc.noaa.gov/cdo-web/datasets/GHCND/stations/GHCND:USW00024233/detail. If no data is available, Kalshi will invoke its rules to settle the market using the NWS’ Monthly Climate Report; or if that is not available, the sum of precipitation in Daily Climate Reports.