Heat wave occuring from May 09 2025 to May 13 2025 at 27.0°N 246.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 5 days

Time span: May 09 2025 to May 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 28.9 °C
  • Maximum temperature anomaly: 11.8 °C
  • Maximum temperature: 35.1 °C

Event center: 27.0°N 246.5°E

Area affected: 312208 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-09_to_2025-May-13_246.5_27.0

Heat wave occuring from May 08 2025 to May 17 2025 at 47.5°N 259.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 10 days

Time span: May 08 2025 to May 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 9.3 °C
  • Mean temperature: 20.0 °C
  • Maximum temperature anomaly: 19.9 °C
  • Maximum temperature: 33.6 °C

Event center: 47.5°N 259.0°E

Area affected: 3663517 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-08_to_2025-May-17_259.0_47.5

Heat wave occuring from April 23 2025 to May 01 2025 at 16.0°N 262.0°E

Download data: JSON

Event type: Heat wave

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

  • Mexico

Duration: 9 days

Time span: April 23 2025 to May 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 29.5 °C

Event center: 16.0°N 262.0°E

Area affected: 103832 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-Apr-23_to_2025-May-01_262.0_16.0

Heat wave occuring from April 20 2025 to April 30 2025 at 19.5°N 260.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 11 days

Time span: April 20 2025 to April 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 24.8 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: 31.8 °C

Event center: 19.5°N 260.5°E

Area affected: 353198 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-Apr-20_to_2025-Apr-30_260.5_19.5

Heat wave occuring from April 07 2025 to April 19 2025 at 26.5°N 252.0°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 13 days

Time span: April 07 2025 to April 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: 20.8 °C
  • Maximum temperature anomaly: 12.3 °C
  • Maximum temperature: 30.5 °C

Event center: 26.5°N 252.0°E

Area affected: 2429411 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-Apr-07_to_2025-Apr-19_252.0_26.5

Heat wave occuring from March 23 2025 to March 29 2025 at 44.5°N 237.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 7 days

Time span: March 23 2025 to March 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.7 °C
  • Mean temperature: 13.1 °C
  • Maximum temperature anomaly: 14.6 °C
  • Maximum temperature: 29.5 °C

Event center: 44.5°N 237.0°E

Area affected: 3459146 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-29_237.0_44.5

Heat wave occuring from November 24 2024 to December 27 2024 at 11.0°N 267.5°E

Download data: JSON

Event type: Heat wave

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

  • Costa Rica
  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua

Duration: 34 days

Time span: November 24 2024 to December 27 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 28.9 °C

Event center: 11.0°N 267.5°E

Area affected: 551408 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_2024-Nov-24_to_2024-Dec-27_267.5_11.0

Heat wave occuring from September 25 2024 to October 01 2024 at 22.5°N 262.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico

Duration: 7 days

Time span: September 25 2024 to October 01 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 28.6 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 29.2 °C

Event center: 22.5°N 262.5°E

Area affected: 82437 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_2024-Sep-25_to_2024-Oct-01_262.5_22.5

Heat wave occuring from August 05 2024 to August 12 2024 at 21.0°N 258.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico

Duration: 8 days

Time span: August 05 2024 to August 12 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 21.5 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 29.6 °C

Event center: 21.0°N 258.5°E

Area affected: 121883 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_2024-Aug-05_to_2024-Aug-12_258.5_21.0

Heat wave occuring from August 02 2024 to August 08 2024 at 27.0°N 246.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico

Duration: 7 days

Time span: August 02 2024 to August 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 30.5 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 34.5 °C

Event center: 27.0°N 246.5°E

Area affected: 56644 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_2024-Aug-02_to_2024-Aug-08_246.5_27.0