New Zealand Environmental Data Stack (NZEnvDS) comprises a set of 72 spatial layers for environmental modelling and site characterisation. NZEnvDS includes the layers that informed the Land Environments of New Zealand (LENZ), additional layers generated for LENZ that were never publicly released, and additional layers generated since, all covering mainland New Zealand and surrounding inshore islands. The original/top copy of the dataset is available at (https://doi.org/10.7931/m6rm-vz40), but the layers are reproduced here for ease of access. See (https://newzealandecology.org/nzje/3440/) for a publication describing NZEnvDS. Generated as part of LENZ for the years 1950–1980 (Leathwick et al. 2002). This layer was originally called “Mean minimum temperature of the coldest month” in LENZ, but a name close to this is used for a similar BIOCLIM variable (bio6), above, so it is renamed here. Please cite the original paper as attribution when using these layers.