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: 7 days

Time span: March 18 2025 to March 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: -13.1 °C
• Mean temperature: -38.9 °C
• Minimum temperature anomaly: -20.8 °C
• Minimum temperature: -46.8 °C

Event center: -83.5°S 203.0°E

Area affected: 271003 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-18_to_2025-Mar-24_203.0_-83.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: March 12 2025 to March 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: -9.5 °C
• Mean temperature: -36.5 °C
• Minimum temperature anomaly: -12.8 °C
• Minimum temperature: -41.5 °C

Event center: -82.0°S 195.5°E

Area affected: 205143 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-12_to_2025-Mar-15_195.5_-82.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 3 days

Time span: March 07 2025 to March 09 2025

Statistics over entire affected area:

• Mean temperature anomaly: -5.1 °C
• Mean temperature: -9.6 °C
• Minimum temperature anomaly: -8.5 °C
• Minimum temperature: -16.1 °C

Event center: -67.5°S 314.5°E

Area affected: 229535 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-07_to_2025-Mar-09_314.5_-67.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: March 06 2025 to March 12 2025

Statistics over entire affected area:

• Mean temperature anomaly: -5.2 °C
• Mean temperature: -38.0 °C
• Minimum temperature anomaly: -8.7 °C
• Minimum temperature: -45.3 °C

Event center: -85.5°S 271.0°E

Area affected: 58204 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-06_to_2025-Mar-12_271.0_-85.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: March 06 2025 to March 12 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.2 °C
• Mean temperature: -48.4 °C
• Minimum temperature anomaly: -10.5 °C
• Minimum temperature: -53.7 °C

Event center: -77.5°S 5.0°E

Area affected: 350429 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-06_to_2025-Mar-12_5.0_-77.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: March 05 2025 to March 09 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.6 °C
• Mean temperature: -34.6 °C
• Minimum temperature anomaly: -9.6 °C
• Minimum temperature: -43.3 °C

Event center: -69.0°S 53.0°E

Area affected: 138165 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-05_to_2025-Mar-09_53.0_-69.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 4 days

Time span: February 27 2025 to March 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: -4.8 °C
• Mean temperature: -46.3 °C
• Minimum temperature anomaly: -6.0 °C
• Minimum temperature: -52.5 °C

Event center: -78.0°S 57.5°E

Area affected: 60007 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-27_to_2025-Mar-02_57.5_-78.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 9 days

Time span: February 24 2025 to March 04 2025

Statistics over entire affected area:

• Mean temperature anomaly: -5.4 °C
• Mean temperature: -11.6 °C
• Minimum temperature anomaly: -8.9 °C
• Minimum temperature: -21.5 °C

Event center: -70.0°S 288.0°E

Area affected: 54969 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-24_to_2025-Mar-04_288.0_-70.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: February 24 2025 to March 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: -2.7 °C
• Mean temperature: -2.1 °C
• Minimum temperature anomaly: -10.5 °C
• Minimum temperature: -16.3 °C

Event center: -63.0°S 303.5°E

Area affected: 1251506 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-24_to_2025-Mar-02_303.5_-63.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: February 23 2025 to March 01 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.7 °C
• Mean temperature: -18.7 °C
• Minimum temperature anomaly: -10.5 °C
• Minimum temperature: -24.7 °C

Event center: -73.5°S 289.0°E

Area affected: 58145 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-23_to_2025-Mar-01_289.0_-73.5