PRISM daily and monthly grids were recently updated for several months in 2019, after a number of stations in North Dakota and Nebraska were found to be mis-located. Periods affected are May –September 2019 for precipitation, and April – December 2019 for all other variables. Resulting changes in the gridded data were minor. The new grids have now replaced the old grids, and are available for download from the website, FTP site, and web services.