Category: Weather Extremes – all events

Heat wave occuring from June 13 2026 to June 16 2026 at -51.0°S 288.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 4 days

Time span: June 13 2026 to June 16 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 6.3 °C
  • Maximum temperature anomaly: 10.6 °C
  • Maximum temperature: 13.3 °C

Event center: -51.0°S 288.5°E

Area affected: 299029 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jun-13_to_2026-Jun-16_288.5_-51.0

Cold spell occuring from June 13 2026 to June 24 2026 at 53.0°N 144.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 12 days

Time span: June 13 2026 to June 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 4.1 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 1.7 °C

Event center: 53.0°N 144.5°E

Area affected: 396970 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_2026-Jun-13_to_2026-Jun-24_144.5_53.0

Cold spell occuring from June 13 2026 to June 30 2026 at 47.5°N 275.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 18 days

Time span: June 13 2026 to June 30 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.0 °C
  • Mean temperature: 5.8 °C
  • Minimum temperature anomaly: -10.4 °C
  • Minimum temperature: 1.8 °C

Event center: 47.5°N 275.0°E

Area affected: 93928 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_2026-Jun-13_to_2026-Jun-30_275.0_47.5

Cold spell occuring from June 13 2026 to June 16 2026 at 51.5°N 271.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 4 days

Time span: June 13 2026 to June 16 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: 7.6 °C
  • Minimum temperature anomaly: -9.3 °C
  • Minimum temperature: 4.0 °C

Event center: 51.5°N 271.5°E

Area affected: 157666 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_2026-Jun-13_to_2026-Jun-16_271.5_51.5

Cold spell occuring from June 13 2026 to June 15 2026 at 49.5°N 114.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia
  • Russian Federation

Duration: 3 days

Time span: June 13 2026 to June 15 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 12.4 °C
  • Minimum temperature anomaly: -7.0 °C
  • Minimum temperature: 9.2 °C

Event center: 49.5°N 114.0°E

Area affected: 116347 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_2026-Jun-13_to_2026-Jun-15_114.0_49.5

Cold spell occuring from June 13 2026 to June 15 2026 at 44.5°N 120.5°E

Download data: JSON

Event type: Cold spell

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

  • China

Duration: 3 days

Time span: June 13 2026 to June 15 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 14.7 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: 10.1 °C

Event center: 44.5°N 120.5°E

Area affected: 50250 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_2026-Jun-13_to_2026-Jun-15_120.5_44.5

Cold spell occuring from June 13 2026 to June 15 2026 at -74.5°S 111.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 3 days

Time span: June 13 2026 to June 15 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -67.8 °C
  • Minimum temperature anomaly: -11.6 °C
  • Minimum temperature: -71.2 °C

Event center: -74.5°S 111.0°E

Area affected: 62776 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_2026-Jun-13_to_2026-Jun-15_111.0_-74.5

Heat wave occuring from June 12 2026 to June 18 2026 at -28.5°S 290.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 7 days

Time span: June 12 2026 to June 18 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.6 °C
  • Mean temperature: -0.5 °C
  • Maximum temperature anomaly: 9.8 °C
  • Maximum temperature: 15.1 °C

Event center: -28.5°S 290.5°E

Area affected: 95906 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jun-12_to_2026-Jun-18_290.5_-28.5

Cold spell occuring from June 12 2026 to June 15 2026 at -10.5°S 23.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Congo DRC

Duration: 4 days

Time span: June 12 2026 to June 15 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 21.1 °C
  • Minimum temperature anomaly: -2.3 °C
  • Minimum temperature: 19.5 °C

Event center: -10.5°S 23.0°E

Area affected: 63964 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_2026-Jun-12_to_2026-Jun-15_23.0_-10.5

Cold spell occuring from June 12 2026 to June 29 2026 at 49.0°N 298.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 18 days

Time span: June 12 2026 to June 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 8.3 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: 3.3 °C

Event center: 49.0°N 298.0°E

Area affected: 237773 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_2026-Jun-12_to_2026-Jun-29_298.0_49.0