Correction to: Nature Communications; https://doi.org/10.1038/s41467-023-42113-9, published online 11 October 2023

The original version of this Article contained an error in ref. 45, which was incorrectly citing the preprint of the article as: Strømmen, K. et al. Seasonal forecasts of the 20th Century. Bullet. Am. Meteorol. Soc. preprint, https://doi.org/10.1175/bams-d-19-0019.1 (2020). The correct form of ref. 45 is: Weisheimer, A. et al. Seasonal Forecasts of the Twentieth Century. Bull. Am. Meteorol. Soc. 101, E1413–E1426 https://doi.org/10.1175/bams-d-19-0019.1 (2020). This has been corrected in the PDF and HTML versions of the Article.