In 2025, Canada will celebrate a special milestone – 50 years of using Celsius for temperature measurements. The change officially took place on April 1st, 1975, when the country switched from Fahrenheit to Celsius.
While the shift was a big change, it didn’t happen overnight. For a few years, media outlets continued to report both Celsius and Fahrenheit temperatures to help people adjust to the new system. By 1977, however, major broadcasters and news reports fully adopted Celsius.
This historic change made Canada one of the first countries to fully embrace the metric system for temperature. The shift to Celsius was part of a broader movement to standardize measurements across the country and align with international standards.
As Canada celebrates this important milestone in 2025, it’s a chance to reflect on how far the country has come in adopting Celsius and the benefits of using a universal temperature scale.