Notices

What's New in this latest release from November 2, 2026: This release supports the Canadian time zone changes taking effect on November 1, 2026, as British Columbia, Alberta, Manitoba and parts of Northwest Ontario will remain on daylight saving time year-round. Beginning November 2, 2026, updated time zone information will be reflected on this website, including the Canadian Historical Weather Radar time zone displayed above radar images. Historical Hourly Data reports may temporarily display a blank hour of data for affected locations during the transition period. The release also includes technical documentation updates and several web application and database fixes to improve data quality, accuracy, and user experience. Please contact us if you have any questions or concerns.