Correction to: Nature Climate Change https://doi.org/10.1038/s41558-018-0346-z, published online 26 November 2018.

In the version of this Letter originally published, there were errors in Fig. 1a. The sites denoted purple were described in the legend as ‘Pday>0.05 & Pnight>0.05’, but should have been labelled ‘Pday<0.05 & Pnight>0.05’. The sites denoted green were described in the legend as ‘Pday>0.05 & Pnight>0.05’, but should have been labelled ‘Pday>0.05 & Pnight<0.05’. The sites denoted orange were described in the legend as ‘Pday>0.05 & Pnight>0.05’, but should have been labelled ‘Pday<0.05 & Pnight<0.05’. These errors have now been corrected.