Category: Cold spells affecting Antarctica

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: December 13 2025 to December 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: -3.6 °C
• Mean temperature: -15.7 °C
• Minimum temperature anomaly: -5.2 °C
• Minimum temperature: -22.6 °C

Event center: -71.5°S 349.0°E

Area affected: 52515 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-Dec-13_to_2025-Dec-16_349.0_-71.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: December 09 2025 to December 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: -1.5 °C
• Mean temperature: -2.6 °C
• Minimum temperature anomaly: -2.7 °C
• Minimum temperature: -4.2 °C

Event center: -62.0°S 339.5°E

Area affected: 252759 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-Dec-09_to_2025-Dec-15_339.5_-62.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 10 days

Time span: November 23 2025 to December 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: -2.8 °C
• Mean temperature: -3.7 °C
• Minimum temperature anomaly: -6.4 °C
• Minimum temperature: -15.0 °C

Event center: -60.5°S 309.0°E

Area affected: 374790 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-Nov-23_to_2025-Dec-02_309.0_-60.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 6 days

Time span: November 08 2025 to November 13 2025

Statistics over entire affected area:

• Mean temperature anomaly: -5.3 °C
• Mean temperature: -15.1 °C
• Minimum temperature anomaly: -7.0 °C
• Minimum temperature: -23.8 °C

Event center: -76.0°S 332.0°E

Area affected: 83240 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-Nov-08_to_2025-Nov-13_332.0_-76.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 10 days

Time span: November 08 2025 to November 17 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.0 °C
• Mean temperature: -10.6 °C
• Minimum temperature anomaly: -7.7 °C
• Minimum temperature: -22.0 °C

Event center: -69.0°S 37.5°E

Area affected: 492268 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-Nov-08_to_2025-Nov-17_37.5_-69.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: November 07 2025 to November 13 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.8 °C
• Mean temperature: -12.8 °C
• Minimum temperature anomaly: -8.3 °C
• Minimum temperature: -18.4 °C

Event center: -72.5°S 339.5°E

Area affected: 58965 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-Nov-07_to_2025-Nov-13_339.5_-72.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 11 days

Time span: November 07 2025 to November 17 2025

Statistics over entire affected area:

• Mean temperature anomaly: -5.4 °C
• Mean temperature: -32.4 °C
• Minimum temperature anomaly: -8.6 °C
• Minimum temperature: -42.9 °C

Event center: -84.5°S 292.0°E

Area affected: 636307 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-Nov-07_to_2025-Nov-17_292.0_-84.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: November 06 2025 to November 12 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.7 °C
• Mean temperature: -20.8 °C
• Minimum temperature anomaly: -8.8 °C
• Minimum temperature: -26.4 °C

Event center: -75.5°S 296.0°E

Area affected: 93432 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-Nov-06_to_2025-Nov-12_296.0_-75.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 9 days

Time span: October 29 2025 to November 06 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.8 °C
• Mean temperature: -10.0 °C
• Minimum temperature anomaly: -6.2 °C
• Minimum temperature: -12.6 °C

Event center: -64.5°S 3.5°E

Area affected: 627475 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-Oct-29_to_2025-Nov-06_3.5_-64.5