Category: Extremes affecting Argentina

Cold spell occuring from April 04 2025 to April 09 2025 at -24.5°S 299.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Bolivia, Plurinational State of
  • Paraguay

Duration: 6 days

Time span: April 04 2025 to April 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.8 °C
  • Mean temperature: 19.4 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 14.8 °C

Event center: -24.5°S 299.0°E

Area affected: 229636 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-04_to_2025-Apr-09_299.0_-24.5

Cold spell occuring from April 03 2025 to April 08 2025 at -39.5°S 304.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Uruguay

Duration: 6 days

Time span: April 03 2025 to April 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 12.3 °C
  • Minimum temperature anomaly: -9.6 °C
  • Minimum temperature: 3.5 °C

Event center: -39.5°S 304.0°E

Area affected: 1299429 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-03_to_2025-Apr-08_304.0_-39.5

Heat wave occuring from March 31 2025 to April 15 2025 at -75.5°S 282.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Chile

Duration: 16 days

Time span: March 31 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: -6.5 °C
  • Maximum temperature anomaly: 23.1 °C
  • Maximum temperature: 15.6 °C

Event center: -75.5°S 282.5°E

Area affected: 5218903 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-Mar-31_to_2025-Apr-15_282.5_-75.5

Cold spell occuring from March 30 2025 to April 03 2025 at -36.5°S 289.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Chile

Duration: 5 days

Time span: March 30 2025 to April 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 6.4 °C
  • Minimum temperature anomaly: -13.2 °C
  • Minimum temperature: -10.3 °C

Event center: -36.5°S 289.5°E

Area affected: 155333 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-30_to_2025-Apr-03_289.5_-36.5

Cold spell occuring from March 29 2025 to April 05 2025 at -54.5°S 289.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica
  • Argentina
  • Chile

Duration: 8 days

Time span: March 29 2025 to April 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 3.2 °C
  • Minimum temperature anomaly: -10.3 °C
  • Minimum temperature: -6.4 °C

Event center: -54.5°S 289.5°E

Area affected: 1313351 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-05_289.5_-54.5

Heat wave occuring from March 23 2025 to March 27 2025 at -47.0°S 290.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 5 days

Time span: March 23 2025 to March 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 13.5 °C
  • Maximum temperature anomaly: 8.9 °C
  • Maximum temperature: 21.4 °C

Event center: -47.0°S 290.0°E

Area affected: 216832 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-Mar-23_to_2025-Mar-27_290.0_-47.0

Cold spell occuring from March 23 2025 to March 28 2025 at -36.5°S 290.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Chile

Duration: 6 days

Time span: March 23 2025 to March 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.8 °C
  • Mean temperature: 10.2 °C
  • Minimum temperature anomaly: -13.0 °C
  • Minimum temperature: -5.5 °C

Event center: -36.5°S 290.0°E

Area affected: 385636 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-28_290.0_-36.5

Heat wave occuring from March 18 2025 to March 21 2025 at -37.0°S 287.0°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: March 18 2025 to March 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 16.2 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 20.8 °C

Event center: -37.0°S 287.0°E

Area affected: 74180 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-Mar-18_to_2025-Mar-21_287.0_-37.0

Heat wave occuring from March 17 2025 to March 23 2025 at -33.5°S 293.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Uruguay

Duration: 7 days

Time span: March 17 2025 to March 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 24.7 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 31.0 °C

Event center: -33.5°S 293.0°E

Area affected: 475160 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-Mar-17_to_2025-Mar-23_293.0_-33.5

Cold spell occuring from March 11 2025 to March 16 2025 at -23.5°S 294.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Bolivia, Plurinational State of

Duration: 6 days

Time span: March 11 2025 to March 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 12.7 °C
  • Minimum temperature anomaly: -5.8 °C
  • Minimum temperature: 1.7 °C

Event center: -23.5°S 294.0°E

Area affected: 95345 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-11_to_2025-Mar-16_294.0_-23.5