A long-term control simulation of pre-industrial period (1850 CE) climates were performed by the EC-Earth3-LR climate model with a horizontal resolution of ~1.125°. The dataset contains selected output data from the simulations. In total, a 2000-year long control simulation was made, which has pre-industrial orbital boundary conditions, initialized by a pre-run steady restart file (the output of approximately 500-year pre-industrial control simulation). This dataset is used to investigate internal climate variability without external forcing changes under pre-industrial climate conditions. The dataset contains Earth system model results from EC-Earth3 presented in the study by Cao et al. (2022). Model configuration Time periods: Pre-Industrial (2000-year time slice) ESM configuration: EC-Earth3-LR Horizontal resolution: ~1.125° (~125 km) Available data Annual mean data for standard oceanographic and meteorological variables.