Category: Extremes affecting Greenland

Cold spell occuring from February 01 2026 to February 28 2026 at 76.0°N 274.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland
  • Russian Federation
  • United States

Duration: 28 days

Time span: February 01 2026 to February 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -9.4 °C
  • Mean temperature: -33.7 °C
  • Minimum temperature anomaly: -26.6 °C
  • Minimum temperature: -59.3 °C

Event center: 76.0°N 274.5°E

Area affected: 7556909 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-Feb-01_to_2026-Feb-28_274.5_76.0

Cold spell occuring from November 24 2025 to December 05 2025 at 72.0°N 343.0°E

Download data: JSON

Event type: Cold spell

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

  • Greenland

Duration: 12 days

Time span: November 24 2025 to December 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -17.6 °C
  • Minimum temperature anomaly: -12.2 °C
  • Minimum temperature: -27.2 °C

Event center: 72.0°N 343.0°E

Area affected: 147203 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-24_to_2025-Dec-05_343.0_72.0

Heat wave occuring from October 23 2025 to October 31 2025 at 82.0°N 284.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 9 days

Time span: October 23 2025 to October 31 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 8.0 °C
  • Mean temperature: -14.2 °C
  • Maximum temperature anomaly: 13.8 °C
  • Maximum temperature: -8.0 °C

Event center: 82.0°N 284.5°E

Area affected: 80924 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-23_to_2025-Oct-31_284.5_82.0

Heat wave occuring from October 01 2025 to October 03 2025 at 79.5°N 354.5°E

Download data: JSON

Event type: Heat wave

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

  • Greenland

Duration: 3 days

Time span: October 01 2025 to October 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 7.1 °C
  • Mean temperature: -0.9 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: 1.8 °C

Event center: 79.5°N 354.5°E

Area affected: 65595 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-01_to_2025-Oct-03_354.5_79.5

Heat wave occuring from September 23 2025 to September 28 2025 at 80.5°N 291.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 6 days

Time span: September 23 2025 to September 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 8.2 °C
  • Mean temperature: -9.5 °C
  • Maximum temperature anomaly: 13.0 °C
  • Maximum temperature: 1.5 °C

Event center: 80.5°N 291.5°E

Area affected: 343209 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-Sep-23_to_2025-Sep-28_291.5_80.5

Heat wave occuring from September 22 2025 to September 29 2025 at 73.5°N 338.5°E

Download data: JSON

Event type: Heat wave

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

  • Greenland

Duration: 8 days

Time span: September 22 2025 to September 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 0.4 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 3.6 °C

Event center: 73.5°N 338.5°E

Area affected: 76186 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-Sep-22_to_2025-Sep-29_338.5_73.5

Heat wave occuring from September 21 2025 to September 25 2025 at 74.0°N 320.5°E

Download data: JSON

Event type: Heat wave

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

  • Greenland

Duration: 5 days

Time span: September 21 2025 to September 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 9.1 °C
  • Mean temperature: -12.4 °C
  • Maximum temperature anomaly: 12.7 °C
  • Maximum temperature: -5.4 °C

Event center: 74.0°N 320.5°E

Area affected: 331210 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-Sep-21_to_2025-Sep-25_320.5_74.0

Heat wave occuring from September 17 2025 to September 24 2025 at 71.0°N 307.0°E

Download data: JSON

Event type: Heat wave

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

  • Greenland

Duration: 8 days

Time span: September 17 2025 to September 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 4.6 °C
  • Maximum temperature anomaly: 8.6 °C
  • Maximum temperature: 9.6 °C

Event center: 71.0°N 307.0°E

Area affected: 177623 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-Sep-17_to_2025-Sep-24_307.0_71.0

Heat wave occuring from August 30 2025 to September 03 2025 at 72.0°N 325.0°E

Download data: JSON

Event type: Heat wave

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

  • Greenland

Duration: 5 days

Time span: August 30 2025 to September 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 7.3 °C
  • Mean temperature: -11.1 °C
  • Maximum temperature anomaly: 8.4 °C
  • Maximum temperature: -9.0 °C

Event center: 72.0°N 325.0°E

Area affected: 53377 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-Aug-30_to_2025-Sep-03_325.0_72.0

Cold spell occuring from August 11 2025 to August 17 2025 at 74.0°N 305.0°E

Download data: JSON

Event type: Cold spell

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

  • Greenland

Duration: 7 days

Time span: August 11 2025 to August 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: -9.4 °C
  • Minimum temperature anomaly: -7.0 °C
  • Minimum temperature: -19.4 °C

Event center: 74.0°N 305.0°E

Area affected: 380333 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-Aug-11_to_2025-Aug-17_305.0_74.0