Category: Extremes affecting Antarctica

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 16 days

Time span: June 22 2025 to July 07 2025

Statistics over entire affected area:

• Mean temperature anomaly: -9.1 °C
• Mean temperature: -21.2 °C
• Minimum temperature anomaly: -15.6 °C
• Minimum temperature: -32.0 °C

Event center: -62.0°S 359.5°E

Area affected: 2881693 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-Jun-22_to_2025-Jul-07_359.5_-62.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: June 21 2025 to June 25 2025

Statistics over entire affected area:

• Mean temperature anomaly: -10.9 °C
• Mean temperature: -40.1 °C
• Minimum temperature anomaly: -16.4 °C
• Minimum temperature: -51.7 °C

Event center: -77.0°S 189.5°E

Area affected: 132860 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-Jun-21_to_2025-Jun-25_189.5_-77.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: June 19 2025 to June 23 2025

Statistics over entire affected area:

• Mean temperature anomaly: -12.3 °C
• Mean temperature: -40.3 °C
• Minimum temperature anomaly: -18.6 °C
• Minimum temperature: -49.6 °C

Event center: -78.0°S 232.5°E

Area affected: 373960 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-Jun-19_to_2025-Jun-23_232.5_-78.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 8 days

Time span: June 17 2025 to June 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: -9.9 °C
• Mean temperature: -67.3 °C
• Minimum temperature anomaly: -13.1 °C
• Minimum temperature: -70.4 °C

Event center: -77.0°S 45.5°E

Area affected: 79064 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-Jun-17_to_2025-Jun-24_45.5_-77.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 10 days

Time span: June 15 2025 to June 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.7 °C
• Mean temperature: -57.9 °C
• Minimum temperature anomaly: -12.8 °C
• Minimum temperature: -68.6 °C

Event center: -85.5°S 64.0°E

Area affected: 800406 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-Jun-15_to_2025-Jun-24_64.0_-85.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 8 days

Time span: June 12 2025 to June 19 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.8 °C
• Mean temperature: -24.7 °C
• Minimum temperature anomaly: -11.5 °C
• Minimum temperature: -36.2 °C

Event center: -69.5°S 1.0°E

Area affected: 148402 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-Jun-12_to_2025-Jun-19_359.0_-69.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 6 days

Time span: June 07 2025 to June 12 2025

Statistics over entire affected area:

• Mean temperature anomaly: -10.1 °C
• Mean temperature: -25.3 °C
• Minimum temperature anomaly: -14.5 °C
• Minimum temperature: -30.0 °C

Event center: -66.0°S 348.0°E

Area affected: 485967 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-Jun-07_to_2025-Jun-12_348.0_-66.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 11 days

Time span: June 05 2025 to June 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.2 °C
• Mean temperature: -17.6 °C
• Minimum temperature anomaly: -13.5 °C
• Minimum temperature: -53.0 °C

Event center: -65.5°S 57.5°E

Area affected: 1378064 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-Jun-05_to_2025-Jun-15_57.5_-65.5