Author: WEXA

Cold spell occuring from May 26 2026 to June 05 2026 at -74.0°S 337.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 11 days

Time span: May 26 2026 to June 05 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -10.0 °C
  • Mean temperature: -38.8 °C
  • Minimum temperature anomaly: -18.9 °C
  • Minimum temperature: -58.0 °C

Event center: -74.0°S 337.5°E

Area affected: 989420 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-May-26_to_2026-Jun-05_337.5_-74.0

Heat wave occuring from May 25 2026 to May 28 2026 at 59.0°N 292.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 4 days

Time span: May 25 2026 to May 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.6 °C
  • Mean temperature: 6.3 °C
  • Maximum temperature anomaly: 11.1 °C
  • Maximum temperature: 14.0 °C

Event center: 59.0°N 292.0°E

Area affected: 90618 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_2026-May-25_to_2026-May-28_292.0_59.0

Cold spell occuring from May 25 2026 to June 05 2026 at 15.5°N 40.0°E

Download data: JSON

Event type: Cold spell

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

  • Eritrea
  • Sudan

Duration: 12 days

Time span: May 25 2026 to June 05 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 29.8 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: 27.9 °C

Event center: 15.5°N 40.0°E

Area affected: 94654 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-May-25_to_2026-Jun-05_40.0_15.5

Cold spell occuring from May 24 2026 to June 19 2026 at 80.5°N 197.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Russian Federation
  • United States

Duration: 27 days

Time span: May 24 2026 to June 19 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: -3.0 °C
  • Minimum temperature anomaly: -12.5 °C
  • Minimum temperature: -14.3 °C

Event center: 80.5°N 197.0°E

Area affected: 5946999 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-May-24_to_2026-Jun-19_197.0_80.5

Cold spell occuring from May 24 2026 to May 28 2026 at 74.5°N 306.0°E

Download data: JSON

Event type: Cold spell

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

  • Greenland

Duration: 5 days

Time span: May 24 2026 to May 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: -17.8 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: -23.5 °C

Event center: 74.5°N 306.0°E

Area affected: 65468 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-May-24_to_2026-May-28_306.0_74.5

Cold spell occuring from May 24 2026 to June 03 2026 at -81.5°S 63.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 11 days

Time span: May 24 2026 to June 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -9.0 °C
  • Mean temperature: -62.6 °C
  • Minimum temperature anomaly: -13.8 °C
  • Minimum temperature: -73.5 °C

Event center: -81.5°S 63.0°E

Area affected: 555436 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-May-24_to_2026-Jun-03_63.0_-81.5

Heat wave occuring from May 24 2026 to May 31 2026 at 58.5°N 163.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation

Duration: 8 days

Time span: May 24 2026 to May 31 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 4.7 °C
  • Maximum temperature anomaly: 3.7 °C
  • Maximum temperature: 6.3 °C

Event center: 58.5°N 163.0°E

Area affected: 69565 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_2026-May-24_to_2026-May-31_163.0_58.5

Heat wave occuring from May 24 2026 to May 28 2026 at -21.5°S 313.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 5 days

Time span: May 24 2026 to May 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 22.5 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 25.7 °C

Event center: -21.5°S 313.0°E

Area affected: 75689 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_2026-May-24_to_2026-May-28_313.0_-21.5

Heat wave occuring from May 24 2026 to May 29 2026 at 43.0°N 248.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 6 days

Time span: May 24 2026 to May 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 7.0 °C
  • Mean temperature: 20.6 °C
  • Maximum temperature anomaly: 8.6 °C
  • Maximum temperature: 25.4 °C

Event center: 43.0°N 248.0°E

Area affected: 108371 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_2026-May-24_to_2026-May-29_248.0_43.0

Heat wave occuring from May 23 2026 to June 10 2026 at -7.0°S 305.0°E

Download data: JSON

Event type: Heat wave

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

  • Bolivia
  • Brazil
  • Peru

Duration: 19 days

Time span: May 23 2026 to June 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 29.1 °C

Event center: -7.0°S 305.0°E

Area affected: 1675954 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_2026-May-23_to_2026-Jun-10_305.0_-7.0