September 2026 was a warm one in most of Canada except Atlantic Canada and BC. Regions around the Hudson Bay recorded temperatures up to 3°C above normal, while parts of the Maritimes saw their coolest September since 2004 or 2009.

August was another warmer month than normal in most of Canada, with the warmest anomalies in the north and the Maritimes. It was even the warmest August on record in Halifax. Southern parts of the Prairies ended up slightly below normal.