Cold spell occuring from June 23 2025 to June 28 2025 at 19.0°N 271.5°E

Download data: JSON

Event type: Cold spell

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

  • Belize
  • Guatemala
  • Mexico

Duration: 6 days

Time span: June 23 2025 to June 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 25.6 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 23.7 °C

Event center: 19.0°N 271.5°E

Area affected: 119779 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-Jun-23_to_2025-Jun-28_271.5_19.0

Cold spell occuring from June 22 2025 to August 03 2025 at 35.0°N 239.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 43 days

Time span: June 22 2025 to August 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 15.4 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: 9.4 °C

Event center: 35.0°N 239.0°E

Area affected: 732851 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-Jun-22_to_2025-Aug-03_239.0_35.0

Cold spell occuring from June 22 2025 to July 07 2025 at 29.0°N 254.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 16 days

Time span: June 22 2025 to July 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 22.7 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 15.3 °C

Event center: 29.0°N 254.0°E

Area affected: 590517 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-Jun-22_to_2025-Jul-07_254.0_29.0

Cold spell occuring from June 21 2025 to June 28 2025 at 27.0°N 245.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 8 days

Time span: June 21 2025 to June 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: 15.7 °C

Event center: 27.0°N 245.5°E

Area affected: 175755 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-Jun-21_to_2025-Jun-28_245.5_27.0

Cold spell occuring from June 13 2025 to June 29 2025 at 20.5°N 260.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico

Duration: 17 days

Time span: June 13 2025 to June 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 20.0 °C
  • Minimum temperature anomaly: -5.4 °C
  • Minimum temperature: 12.2 °C

Event center: 20.5°N 260.5°E

Area affected: 512177 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-Jun-13_to_2025-Jun-29_260.5_20.5

Heat wave occuring from May 21 2025 to May 25 2025 at 27.5°N 252.0°E

Download data: JSON

Event type: Heat wave

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

  • Mexico

Duration: 5 days

Time span: May 21 2025 to May 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 23.8 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 30.6 °C

Event center: 27.5°N 252.0°E

Area affected: 51400 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-21_to_2025-May-25_252.0_27.5

Cold spell occuring from May 09 2025 to May 11 2025 at 28.5°N 257.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico

Duration: 3 days

Time span: May 09 2025 to May 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 21.4 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: 15.2 °C

Event center: 28.5°N 257.0°E

Area affected: 113156 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-09_to_2025-May-11_257.0_28.5

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

Cold spell occuring from April 26 2025 to April 28 2025 at 35.0°N 242.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 3 days

Time span: April 26 2025 to April 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: 13.9 °C
  • Minimum temperature anomaly: -8.9 °C
  • Minimum temperature: 6.7 °C

Event center: 35.0°N 242.0°E

Area affected: 58641 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-26_to_2025-Apr-28_242.0_35.0