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: 9 days

Time span: June 30 2025 to July 08 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.1 °C
• Mean temperature: -44.9 °C
• Minimum temperature anomaly: -15.1 °C
• Minimum temperature: -56.1 °C

Event center: -85.0°S 271.5°E

Area affected: 323040 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-30_to_2025-Jul-08_271.5_-85.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 17 days

Time span: June 30 2025 to July 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: -10.1 °C
• Mean temperature: -53.0 °C
• Minimum temperature anomaly: -17.4 °C
• Minimum temperature: -79.4 °C

Event center: -63.0°S 110.0°E

Area affected: 4419302 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-30_to_2025-Jul-16_110.0_-63.0

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 28 2025 to July 03 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.2 °C
• Mean temperature: -45.0 °C
• Minimum temperature anomaly: -13.7 °C
• Minimum temperature: -52.0 °C

Event center: -74.0°S 355.5°E

Area affected: 149996 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-28_to_2025-Jul-03_355.5_-74.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: June 27 2025 to June 30 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.9 °C
• Mean temperature: -62.1 °C
• Minimum temperature anomaly: -13.3 °C
• Minimum temperature: -70.1 °C

Event center: -81.5°S 30.0°E

Area affected: 226729 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-27_to_2025-Jun-30_30.0_-81.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 6 days

Time span: June 26 2025 to July 01 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.3 °C
• Mean temperature: -33.7 °C
• Minimum temperature anomaly: -15.9 °C
• Minimum temperature: -44.6 °C

Event center: -72.5°S 70.5°E

Area affected: 165154 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-26_to_2025-Jul-01_70.5_-72.5

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