| Station ID | Station Name | County/Region |
| 27528 | Delhi CS | Norfolk |
| 27604 | Egbert CS | Simcoe |
| 41983 | Elora RCS | Wellington Centre |
| 4760 | Fergus Shand Dam | Precipitation data for Wellington North |
| 7747 | Goderich | Huron |
| 30266 | Harrow CDA Auto | Essex |
| 27534 | Kemptville CS | Kemptville |
| 7844 | Mount Forest (AUT) | Temperature Data for Wellington North |
| 48649 | Oshawa | Durham |
| 30578 | Ottawa CDA RCS | Precipitation data for Kemptville |
| 48952 | Peterborough A | Peterborough |
| 32473 | Ridgetown RCS | Chatham-Kent |
| 50840 | Sudbury A | Sudbury |
| 47687 | Earlton Climate | Timiskaming |
| 44323 | Sarnia Climate | Lambton |
| 30723 | Trenton AWOS | Trenton |
| 10999 | London CS | Middlesex |
| 54259 | Wiarton A | Bruce |
| 6900 | Petawawa Hoffman | Renfrew |