- Ontario Regional Meteorological Data
- Northern Region - Thunder Bay, Kenora
- Northern Region - Sudbury, North Bay, Sault Ste. Marie, Timmins
- Eastern Region - Kingston, Cornwall
- Eastern Region - Ottawa, Peterborough, Belleville
- Southwestern Region - Barrie, Owen Sound
- Southwestern Region - London, Windsor, Sarnia
- Central Region - Toronto, York-Durham, Halton-Peel
- West Central Region - Hamilton, Niagara, Guelph
