Category: Cold spells affecting Canada

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 5 days

Time span: March 26 2025 to March 30 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.9 °C
• Mean temperature: -29.7 °C
• Minimum temperature anomaly: -11.6 °C
• Minimum temperature: -36.7 °C

Event center: 68.0°N 274.0°E

Area affected: 102340 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: Cold_spell_2025-Mar-26_to_2025-Mar-30_274.0_68.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 15 days

Time span: March 25 2025 to April 08 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.9 °C
• Mean temperature: -23.5 °C
• Minimum temperature anomaly: -16.5 °C
• Minimum temperature: -37.4 °C

Event center: 65.0°N 278.0°E

Area affected: 2315512 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: Cold_spell_2025-Mar-25_to_2025-Apr-08_278.0_65.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 5 days

Time span: March 09 2025 to March 13 2025

Statistics over entire affected area:

• Mean temperature anomaly: -11.7 °C
• Mean temperature: -26.6 °C
• Minimum temperature anomaly: -14.7 °C
• Minimum temperature: -32.4 °C

Event center: 58.5°N 249.5°E

Area affected: 71315 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: Cold_spell_2025-Mar-09_to_2025-Mar-13_249.5_58.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 4 days

Time span: February 13 2025 to February 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.5 °C
• Mean temperature: -29.6 °C
• Minimum temperature anomaly: -11.9 °C
• Minimum temperature: -36.6 °C

Event center: 57.5°N 273.0°E

Area affected: 167080 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: Cold_spell_2025-Feb-13_to_2025-Feb-16_273.0_57.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 7 days

Time span: January 10 2025 to January 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.1 °C
• Mean temperature: -32.0 °C
• Minimum temperature anomaly: -6.9 °C
• Minimum temperature: -33.3 °C

Event center: 81.5°N 213.0°E

Area affected: 118734 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: Cold_spell_2025-Jan-10_to_2025-Jan-16_213.0_81.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 7 days

Time span: December 31 2024 to January 06 2025

Statistics over entire affected area:

• Mean temperature anomaly: -9.9 °C
• Mean temperature: -35.2 °C
• Minimum temperature anomaly: -15.3 °C
• Minimum temperature: -40.8 °C

Event center: 67.5°N 244.0°E

Area affected: 97413 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: Cold_spell_2024-Dec-31_to_2025-Jan-06_244.0_67.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 4 days

Time span: December 16 2024 to December 19 2024

Statistics over entire affected area:

• Mean temperature anomaly: -13.5 °C
• Mean temperature: -28.5 °C
• Minimum temperature anomaly: -19.0 °C
• Minimum temperature: -36.6 °C

Event center: 58.0°N 241.5°E

Area affected: 121980 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: Cold_spell_2024-Dec-16_to_2024-Dec-19_241.5_58.0