Category: Heat waves affecting Canada

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

• Canada

Duration: 3 days

Time span: January 22 2025 to January 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: 11.2 °C
• Mean temperature: -20.9 °C
• Maximum temperature anomaly: 15.5 °C
• Maximum temperature: -16.8 °C

Event center: 65.0°N 271.0°E

Area affected: 97309 km$^2$

Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.

Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.

Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Jan-22_to_2025-Jan-24_271.0_65.0

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

• Canada

Duration: 13 days

Time span: January 19 2025 to January 31 2025

Statistics over entire affected area:

• Mean temperature anomaly: 10.0 °C
• Mean temperature: -15.6 °C
• Maximum temperature anomaly: 18.7 °C
• Maximum temperature: -7.7 °C

Event center: 65.5°N 296.0°E

Area affected: 101385 km$^2$

Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.

Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.

Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Jan-19_to_2025-Jan-31_296.0_65.5

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

• Canada

Duration: 3 days

Time span: December 17 2024 to December 19 2024

Statistics over entire affected area:

• Mean temperature anomaly: 5.6 °C
• Mean temperature: 2.7 °C
• Maximum temperature anomaly: 9.6 °C
• Maximum temperature: 5.0 °C

Event center: 49.0°N 301.0°E

Area affected: 90242 km$^2$

Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.

Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.

Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2024-Dec-17_to_2024-Dec-19_301.0_49.0

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

• Canada

Duration: 9 days

Time span: December 16 2024 to December 24 2024

Statistics over entire affected area:

• Mean temperature anomaly: 6.8 °C
• Mean temperature: -20.3 °C
• Maximum temperature anomaly: 12.7 °C
• Maximum temperature: -16.1 °C

Event center: 78.0°N 247.5°E

Area affected: 283532 km$^2$

Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.

Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.

Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2024-Dec-16_to_2024-Dec-24_247.5_78.0

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

• Canada

Duration: 10 days

Time span: December 08 2024 to December 17 2024

Statistics over entire affected area:

• Mean temperature anomaly: 10.6 °C
• Mean temperature: -5.0 °C
• Maximum temperature anomaly: 16.4 °C
• Maximum temperature: 1.6 °C

Event center: 62.0°N 273.5°E

Area affected: 1229459 km$^2$

Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.

Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.

Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2024-Dec-08_to_2024-Dec-17_273.5_62.0

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

• Canada

Duration: 4 days

Time span: December 05 2024 to December 08 2024

Statistics over entire affected area:

• Mean temperature anomaly: 13.0 °C
• Mean temperature: -7.9 °C
• Maximum temperature anomaly: 17.3 °C
• Maximum temperature: -0.1 °C

Event center: 63.0°N 234.0°E

Area affected: 172285 km$^2$

Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.

Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.

Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2024-Dec-05_to_2024-Dec-08_234.0_63.0