Category: Extremes affecting Antarctica

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 9 days

Time span: May 08 2025 to May 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.5 °C
• Mean temperature: -18.9 °C
• Minimum temperature anomaly: -12.0 °C
• Minimum temperature: -34.6 °C

Event center: -64.5°S 106.0°E

Area affected: 212391 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-May-08_to_2025-May-16_106.0_-64.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 15 days

Time span: May 07 2025 to May 21 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.5 °C
• Mean temperature: -14.7 °C
• Minimum temperature anomaly: -15.8 °C
• Minimum temperature: -27.4 °C

Event center: -69.0°S 222.0°E

Area affected: 1727398 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-May-07_to_2025-May-21_222.0_-69.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 11 days

Time span: April 30 2025 to May 10 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.6 °C
• Mean temperature: -7.5 °C
• Minimum temperature anomaly: -13.1 °C
• Minimum temperature: -31.7 °C

Event center: -63.5°S 80.5°E

Area affected: 1525482 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-Apr-30_to_2025-May-10_80.5_-63.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: April 25 2025 to April 28 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.8 °C
• Mean temperature: -7.5 °C
• Minimum temperature anomaly: -13.1 °C
• Minimum temperature: -25.6 °C

Event center: -66.0°S 118.0°E

Area affected: 691667 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-Apr-25_to_2025-Apr-28_118.0_-66.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: April 24 2025 to April 28 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.8 °C
• Mean temperature: -13.4 °C
• Minimum temperature anomaly: -10.8 °C
• Minimum temperature: -17.9 °C

Event center: -65.5°S 342.5°E

Area affected: 113203 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-Apr-24_to_2025-Apr-28_342.5_-65.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: April 20 2025 to April 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: -9.9 °C
• Mean temperature: -60.3 °C
• Minimum temperature anomaly: -14.1 °C
• Minimum temperature: -72.3 °C

Event center: -73.5°S 95.0°E

Area affected: 420281 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-Apr-20_to_2025-Apr-24_95.0_-73.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 6 days

Time span: April 19 2025 to April 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.3 °C
• Mean temperature: -59.2 °C
• Minimum temperature anomaly: -12.4 °C
• Minimum temperature: -71.8 °C

Event center: -77.5°S 120.0°E

Area affected: 318933 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-Apr-19_to_2025-Apr-24_120.0_-77.5