Author: WEXA

Cold spell occuring from October 07 2025 to October 16 2025 at 35.0°N 33.5°E

Download data: JSON

Event type: Cold spell

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

  • Cyprus
  • Greece
  • Lebanon
  • Syrian Arab Republic
  • Türkiye

Duration: 10 days

Time span: October 07 2025 to October 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 13.2 °C
  • Minimum temperature anomaly: -9.5 °C
  • Minimum temperature: 2.3 °C

Event center: 35.0°N 33.5°E

Area affected: 599231 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-Oct-07_to_2025-Oct-16_33.5_35.0

Cold spell occuring from October 07 2025 to October 18 2025 at 27.5°N 26.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Egypt
  • Libya

Duration: 12 days

Time span: October 07 2025 to October 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 21.2 °C
  • Minimum temperature anomaly: -5.4 °C
  • Minimum temperature: 17.3 °C

Event center: 27.5°N 26.0°E

Area affected: 1011224 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-Oct-07_to_2025-Oct-18_26.0_27.5

Cold spell occuring from October 07 2025 to October 09 2025 at -20.5°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: 3 days

Time span: October 07 2025 to October 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: 19.5 °C
  • Minimum temperature anomaly: -9.0 °C
  • Minimum temperature: 17.2 °C

Event center: -20.5°S 299.0°E

Area affected: 80100 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-Oct-07_to_2025-Oct-09_299.0_-20.5

Cold spell occuring from October 07 2025 to October 09 2025 at -25.0°S 304.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Brazil
  • Paraguay

Duration: 3 days

Time span: October 07 2025 to October 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.6 °C
  • Mean temperature: 16.4 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 12.2 °C

Event center: -25.0°S 304.0°E

Area affected: 120196 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-Oct-07_to_2025-Oct-09_304.0_-25.0

Heat wave occuring from October 06 2025 to October 11 2025 at 26.5°N 250.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico

Duration: 6 days

Time span: October 06 2025 to October 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 29.8 °C
  • Maximum temperature anomaly: 5.6 °C
  • Maximum temperature: 32.3 °C

Event center: 26.5°N 250.5°E

Area affected: 100345 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-Oct-06_to_2025-Oct-11_250.5_26.5

Heat wave occuring from October 06 2025 to October 10 2025 at -41.0°S 285.5°E

Download data: JSON

Event type: Heat wave

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

  • Chile

Duration: 5 days

Time span: October 06 2025 to October 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 11.8 °C
  • Maximum temperature anomaly: 3.2 °C
  • Maximum temperature: 13.0 °C

Event center: -41.0°S 285.5°E

Area affected: 60134 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-Oct-06_to_2025-Oct-10_285.5_-41.0

Heat wave occuring from October 06 2025 to October 10 2025 at -16.5°S 132.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 5 days

Time span: October 06 2025 to October 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 32.7 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 34.0 °C

Event center: -16.5°S 132.5°E

Area affected: 106235 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-Oct-06_to_2025-Oct-10_132.5_-16.5

Heat wave occuring from October 05 2025 to October 08 2025 at 20.5°N 19.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Libya

Duration: 4 days

Time span: October 05 2025 to October 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 31.5 °C

Event center: 20.5°N 19.0°E

Area affected: 68986 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-Oct-05_to_2025-Oct-08_19.0_20.5

Heat wave occuring from October 05 2025 to October 09 2025 at 64.5°N 198.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 5 days

Time span: October 05 2025 to October 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 6.2 °C
  • Maximum temperature anomaly: 8.3 °C
  • Maximum temperature: 9.7 °C

Event center: 64.5°N 198.5°E

Area affected: 61494 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-Oct-05_to_2025-Oct-09_198.5_64.5

Heat wave occuring from October 05 2025 to October 11 2025 at 30.0°N 262.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 7 days

Time span: October 05 2025 to October 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 27.7 °C
  • Maximum temperature anomaly: 6.3 °C
  • Maximum temperature: 29.6 °C

Event center: 30.0°N 262.5°E

Area affected: 440482 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-Oct-05_to_2025-Oct-11_262.5_30.0