SeaDataCloud Temperature and Salinity Climatologies have been processed from the North Atlantic Ocean historical Data Collection including temperature and salinity in situ data of water column in the North Atlantic Ocean (from 10°N to 62°N for the east part and including the Labrador Sea for the west part) for period 1900-2015. Several versions are proposed in seasonal and monthly format for the period 1955-2015 and six decadal periods (1955-1964/1965-1974/1975-1984/1985-1994/1995-2004/2005-2015). A subset of the CORA dataset (Szekely et al., 2016) has been integrated to the SeaDataCloud aggregated dataset as external data-source to improve the spatial and temporal coverage.