ClimateData.ca provides free access to climate-related data for a variety of variables at locations all across Canada. From the website:

"ClimateData.ca is a climate data portal produced collaboratively by the country’s leading climate organizations and supported, in part, by the Government of Canada. The goal of this portal is to support decision makers across a broad spectrum of sectors and locations by providing the most up to date climate data in easy to use formats and visualizations.

ClimateData.ca is supported by the Canadian Centre for Climate Services (CCCS) of Environment and Climate Change Canada as part of its efforts to provide Canadians with easy access to climate related data and to help increase their resilience to climate change."