You can delete station data if you are signed into wunderground.com using the account associated with the PWS.
If you are still having problems deleting the bad data, please email firstname.lastname@example.org.
- Go to your PWS dashboard page (or history page) and select the date you are interested in.
- Switch to the "Table" view and there will be a blue edit button above the table of data.
- Hit the edit button, then select the points you want to delete. You can select multiple points at a time by control clicking on multiple points, or click the row or column header to delete entire rows or columns.
- Once you have made your selection, hit the "delete points" button at the top of the table and then refresh your page to see the bad data removed.