Historical data from the Trent (up to 2012) and Environment Canada stations can be downloaded from the following web portal:
https://climate.weather.gc.ca/historical_data/search_historic_data_e.html
More detailed data is found in the TSE Google Drive at:
https://drive.google.com/drive/folders/14ttJ6OM7Ws-kXnPs8HRlgkE13-PuJrw6?usp=share_link