Record-breaking heat across southern B.C

Several communities across southern British Columbia, including Cranbrook, recorded new daily maximum temperature records on Monday, June 9, amid a late-spring heat wave sweeping the province.

According to Environment and Climate Change Canada (ECCC), Cranbrook was among the hottest locations, setting a new record high of 34.4°C, surpassing the previous mark of 32.8°C set over a century ago in 1918.

Weather records in the Cranbrook area have been maintained since 1901.

Cranbrook wasn’t alone in breaking historical records.

Here’s a summary of the communities that joined Cranbrook in setting new daily maximum temperatures for June 9, 2025:

• Sparwood Area: New record of 31.4°C (old record: 29.3 °C in 2015; records since 1969)

• Castlegar Area: New record of 36.4°C (old record: 34.4°C in 1918; records since 1916)

• Creston Area: New record of 34.8°C (old record: 33.3°C in 1918; records since 1912)

• Nelson Area: New record of 35.3°C (old record: 33.2°C in 2015; records since 1904)

Click here for a complete list of temperature records set throughout British Columbia on Monday, June 9, 2025.