Habitat suitabilities for year-round survival of Hediste diadroma predicted by three different regional ocean models for two time periods: 2003-2012 and 2030-2039. Values range from 0 to 10, and represent the number of years out of 10 that have suitable temperature and salinity conditions for year-round species survival. These datasets were developed for the Bering Sea Marine Invasive project, which was funded by North Pacific Research Board.