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: 8 days

Time span: April 14 2025 to April 21 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.8 °C
• Mean temperature: -44.8 °C
• Minimum temperature anomaly: -15.0 °C
• Minimum temperature: -58.1 °C

Event center: -84.5°S 250.5°E

Area affected: 336339 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-14_to_2025-Apr-21_250.5_-84.5

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 11 2025 to April 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.5 °C
• Mean temperature: -16.2 °C
• Minimum temperature anomaly: -9.1 °C
• Minimum temperature: -22.3 °C

Event center: -66.0°S 74.5°E

Area affected: 141507 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-11_to_2025-Apr-15_74.5_-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 07 2025 to April 11 2025

Statistics over entire affected area:

• Mean temperature anomaly: -11.8 °C
• Mean temperature: -37.3 °C
• Minimum temperature anomaly: -18.3 °C
• Minimum temperature: -44.0 °C

Event center: -85.0°S 219.0°E

Area affected: 113326 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-07_to_2025-Apr-11_219.0_-85.0

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 05 2025 to April 09 2025

Statistics over entire affected area:

• Mean temperature anomaly: -8.5 °C
• Mean temperature: -46.7 °C
• Minimum temperature anomaly: -12.4 °C
• Minimum temperature: -52.8 °C

Event center: -77.0°S 350.0°E

Area affected: 112212 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-05_to_2025-Apr-09_350.0_-77.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 9 days

Time span: March 29 2025 to April 06 2025

Statistics over entire affected area:

• Mean temperature anomaly: -6.8 °C
• Mean temperature: -57.1 °C
• Minimum temperature anomaly: -8.9 °C
• Minimum temperature: -60.0 °C

Event center: -84.0°S 0.0°E

Area affected: 246397 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-29_to_2025-Apr-06_358.5_-85.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 23 days

Time span: March 26 2025 to April 17 2025

Statistics over entire affected area:

• Mean temperature anomaly: -9.0 °C
• Mean temperature: -53.3 °C
• Minimum temperature anomaly: -18.6 °C
• Minimum temperature: -72.1 °C

Event center: -75.5°S 134.5°E

Area affected: 3813066 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-26_to_2025-Apr-17_134.5_-75.5

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 23 2025 to March 29 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.1 °C
• Mean temperature: -38.4 °C
• Minimum temperature anomaly: -11.5 °C
• Minimum temperature: -48.0 °C

Event center: -69.0°S 54.0°E

Area affected: 111445 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-23_to_2025-Mar-29_54.0_-69.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 12 days

Time span: March 22 2025 to April 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: -11.1 °C
• Mean temperature: -39.0 °C
• Minimum temperature anomaly: -18.5 °C
• Minimum temperature: -48.8 °C

Event center: -78.5°S 175.5°E

Area affected: 741310 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-22_to_2025-Apr-02_175.5_-78.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 10 days

Time span: March 20 2025 to March 29 2025

Statistics over entire affected area:

• Mean temperature anomaly: -7.7 °C
• Mean temperature: -59.2 °C
• Minimum temperature anomaly: -11.8 °C
• Minimum temperature: -66.0 °C

Event center: -78.0°S 40.0°E

Area affected: 474950 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-20_to_2025-Mar-29_40.0_-78.0