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

Cold spell occuring from April 18 2025 to May 23 2025 at 19.5°N 247.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 36 days

Time span: April 18 2025 to May 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: 8.3 °C

Event center: 19.5°N 247.0°E

Area affected: 1989074 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-18_to_2025-May-23_247.0_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

Cold spell occuring from March 21 2025 to April 15 2025 at 13.0°N 242.0°E

Download data: JSON

Event type: Cold spell

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

  • Belize
  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua
  • United States

Duration: 26 days

Time span: March 21 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 19.5 °C
  • Minimum temperature anomaly: -15.0 °C
  • Minimum temperature: -6.7 °C

Event center: 13.0°N 242.0°E

Area affected: 4345856 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-21_to_2025-Apr-15_242.0_13.0

Cold spell occuring from March 04 2025 to March 18 2025 at 21.5°N 250.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico

Duration: 15 days

Time span: March 04 2025 to March 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 18.6 °C
  • Minimum temperature anomaly: -3.3 °C
  • Minimum temperature: 14.4 °C

Event center: 21.5°N 250.0°E

Area affected: 239373 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-04_to_2025-Mar-18_250.0_21.5

Cold spell occuring from January 29 2025 to February 24 2025 at 52.0°N 232.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 27 days

Time span: January 29 2025 to February 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -10.6 °C
  • Mean temperature: -11.3 °C
  • Minimum temperature anomaly: -26.9 °C
  • Minimum temperature: -42.6 °C

Event center: 52.0°N 232.0°E

Area affected: 12758374 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-Jan-29_to_2025-Feb-24_232.0_52.0

Cold spell occuring from January 26 2025 to February 22 2025 at 24.0°N 248.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico

Duration: 28 days

Time span: January 26 2025 to February 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 18.0 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 6.8 °C

Event center: 24.0°N 248.0°E

Area affected: 855104 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-Jan-26_to_2025-Feb-22_248.0_24.0

Cold spell occuring from January 18 2025 to January 30 2025 at 44.0°N 244.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 13 days

Time span: January 18 2025 to January 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -9.7 °C
  • Mean temperature: -6.3 °C
  • Minimum temperature anomaly: -22.4 °C
  • Minimum temperature: -35.6 °C

Event center: 44.0°N 244.5°E

Area affected: 7134980 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-Jan-18_to_2025-Jan-30_244.5_44.0