Category: Extremes affecting Argentina

Cold spell occuring from May 28 2025 to June 01 2025 at -25.5°S 298.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Paraguay

Duration: 5 days

Time span: May 28 2025 to June 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.5 °C
  • Mean temperature: 9.5 °C
  • Minimum temperature anomaly: -9.5 °C
  • Minimum temperature: 5.7 °C

Event center: -25.5°S 298.0°E

Area affected: 403158 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-May-28_to_2025-Jun-01_298.0_-25.5

Cold spell occuring from May 28 2025 to June 02 2025 at -11.5°S 301.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Bolivia, Plurinational State of
  • Brazil
  • Paraguay
  • Peru
  • Uruguay

Duration: 6 days

Time span: May 28 2025 to June 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 16.7 °C
  • Minimum temperature anomaly: -10.4 °C
  • Minimum temperature: 4.8 °C

Event center: -11.5°S 301.5°E

Area affected: 2519036 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-May-28_to_2025-Jun-02_301.5_-11.5

Heat wave occuring from May 19 2025 to May 22 2025 at -30.5°S 289.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 4 days

Time span: May 19 2025 to May 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.1 °C
  • Mean temperature: 10.9 °C
  • Maximum temperature anomaly: 7.2 °C
  • Maximum temperature: 17.3 °C

Event center: -30.5°S 289.0°E

Area affected: 73684 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: Heat_wave_2025-May-19_to_2025-May-22_289.0_-30.5

Cold spell occuring from May 17 2025 to May 22 2025 at -50.0°S 294.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina

Duration: 6 days

Time span: May 17 2025 to May 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 4.7 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: -1.2 °C

Event center: -50.0°S 294.0°E

Area affected: 422713 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-May-17_to_2025-May-22_294.0_-50.0

Heat wave occuring from May 16 2025 to July 24 2025 at -69.0°S 290.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Chile

Duration: 70 days

Time span: May 16 2025 to July 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 9.4 °C
  • Mean temperature: -14.4 °C
  • Maximum temperature anomaly: 27.9 °C
  • Maximum temperature: 22.9 °C

Event center: -69.0°S 290.5°E

Area affected: 22408545 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: Heat_wave_2025-May-16_to_2025-Jul-24_290.5_-69.0

Cold spell occuring from May 15 2025 to May 22 2025 at -51.0°S 285.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Chile

Duration: 8 days

Time span: May 15 2025 to May 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 1.9 °C
  • Minimum temperature anomaly: -12.9 °C
  • Minimum temperature: -10.0 °C

Event center: -51.0°S 285.5°E

Area affected: 407866 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-May-15_to_2025-May-22_285.5_-51.0

Heat wave occuring from May 14 2025 to May 28 2025 at -13.5°S 287.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Bolivia, Plurinational State of
  • Chile
  • Peru

Duration: 15 days

Time span: May 14 2025 to May 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 8.2 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 26.6 °C

Event center: -13.5°S 287.5°E

Area affected: 490358 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: Heat_wave_2025-May-14_to_2025-May-28_287.5_-13.5

Heat wave occuring from May 02 2025 to May 12 2025 at -35.0°S 309.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Brazil
  • Uruguay

Duration: 11 days

Time span: May 02 2025 to May 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 22.3 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 26.8 °C

Event center: -35.0°S 309.5°E

Area affected: 2618431 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: Heat_wave_2025-May-02_to_2025-May-12_309.5_-35.0

Heat wave occuring from May 01 2025 to May 08 2025 at -30.5°S 294.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina

Duration: 8 days

Time span: May 01 2025 to May 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 22.8 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 25.1 °C

Event center: -30.5°S 294.0°E

Area affected: 89024 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: Heat_wave_2025-May-01_to_2025-May-08_294.0_-30.5

Cold spell occuring from April 13 2025 to April 19 2025 at -39.5°S 305.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina

Duration: 7 days

Time span: April 13 2025 to April 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 9.9 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 7.1 °C

Event center: -39.5°S 305.5°E

Area affected: 515482 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-13_to_2025-Apr-19_305.5_-39.5