Author: WEXA

Heat wave occuring from November 20 2025 to November 24 2025 at 50.5°N 242.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: November 20 2025 to November 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.2 °C
  • Mean temperature: 1.8 °C
  • Maximum temperature anomaly: 8.1 °C
  • Maximum temperature: 5.7 °C

Event center: 50.5°N 242.0°E

Area affected: 95936 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-Nov-20_to_2025-Nov-24_242.0_50.5

Cold spell occuring from November 20 2025 to November 22 2025 at 43.0°N 354.5°E

Download data: JSON

Event type: Cold spell

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

  • Portugal
  • Spain

Duration: 3 days

Time span: November 20 2025 to November 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 3.9 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: -1.2 °C

Event center: 43.0°N 354.5°E

Area affected: 89392 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-Nov-20_to_2025-Nov-22_354.5_43.0

Cold spell occuring from November 20 2025 to November 28 2025 at 4.5°N 98.0°E

Download data: JSON

Event type: Cold spell

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

  • Indonesia

Duration: 9 days

Time span: November 20 2025 to November 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 21.9 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 16.0 °C

Event center: 4.5°N 98.0°E

Area affected: 104874 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-Nov-20_to_2025-Nov-28_98.0_4.5

Cold spell occuring from November 20 2025 to November 24 2025 at 51.0°N 8.5°E

Download data: JSON

Event type: Cold spell

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

  • Czechia
  • Germany
  • Poland

Duration: 5 days

Time span: November 20 2025 to November 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: -3.2 °C
  • Minimum temperature anomaly: -11.3 °C
  • Minimum temperature: -11.0 °C

Event center: 51.0°N 8.5°E

Area affected: 290438 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-Nov-20_to_2025-Nov-24_8.5_51.0

Heat wave occuring from November 19 2025 to November 25 2025 at 26.0°N 55.5°E

Download data: JSON

Event type: Heat wave

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

  • Iran, Islamic Republic of

Duration: 7 days

Time span: November 19 2025 to November 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 28.2 °C

Event center: 26.0°N 55.5°E

Area affected: 66791 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-Nov-19_to_2025-Nov-25_55.5_26.0

Heat wave occuring from November 19 2025 to November 23 2025 at -7.5°S 158.0°E

Download data: JSON

Event type: Heat wave

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

  • Solomon Islands

Duration: 5 days

Time span: November 19 2025 to November 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 29.4 °C

Event center: -7.5°S 158.0°E

Area affected: 92025 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-Nov-19_to_2025-Nov-23_158.0_-7.5

Heat wave occuring from November 19 2025 to November 24 2025 at -10.5°S 298.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 6 days

Time span: November 19 2025 to November 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 27.2 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 27.9 °C

Event center: -10.5°S 298.0°E

Area affected: 57829 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-Nov-19_to_2025-Nov-24_298.0_-10.5

Cold spell occuring from November 19 2025 to November 21 2025 at 63.5°N 180.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 3 days

Time span: November 19 2025 to November 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -13.5 °C
  • Minimum temperature anomaly: -19.1 °C
  • Minimum temperature: -32.7 °C

Event center: 63.5°N 180.0°E

Area affected: 75790 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-Nov-19_to_2025-Nov-21_180.0_63.5

Cold spell occuring from November 19 2025 to November 23 2025 at 43.5°N 5.5°E

Download data: JSON

Event type: Cold spell

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

  • France

Duration: 5 days

Time span: November 19 2025 to November 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.8 °C
  • Mean temperature: 0.9 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: -5.2 °C

Event center: 43.5°N 5.5°E

Area affected: 50930 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-Nov-19_to_2025-Nov-23_5.5_43.5

Cold spell occuring from November 19 2025 to November 24 2025 at 17.5°N 43.5°E

Download data: JSON

Event type: Cold spell

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

  • Saudi Arabia
  • Yemen

Duration: 6 days

Time span: November 19 2025 to November 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 15.2 °C
  • Minimum temperature anomaly: -3.9 °C
  • Minimum temperature: 10.7 °C

Event center: 17.5°N 43.5°E

Area affected: 85754 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-Nov-19_to_2025-Nov-24_43.5_17.5