Category: Extremes affecting Iceland

Cold spell occuring from December 18 2023 to January 02 2024 at 66.0°N 327.5°E

Download data: JSON

Event type: Cold spell

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

  • Greenland
  • Iceland

Duration: 16 days

Time span: December 18 2023 to January 02 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -11.2 °C
  • Mean temperature: -38.4 °C
  • Minimum temperature anomaly: -22.4 °C
  • Minimum temperature: -59.8 °C

Event center: 66.0°N 327.5°E

Area affected: 1743085 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_2023-Dec-18_to_2024-Jan-02_327.5_66.0

Heat wave occuring from November 21 2023 to November 28 2023 at 56.0°N 339.5°E

Download data: JSON

Event type: Heat wave

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

  • Greenland
  • Iceland

Duration: 8 days

Time span: November 21 2023 to November 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 9.4 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 13.4 °C

Event center: 56.0°N 339.5°E

Area affected: 1031721 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_2023-Nov-21_to_2023-Nov-28_339.5_56.0

Heat wave occuring from October 17 2023 to October 24 2023 at 67.5°N 338.0°E

Download data: JSON

Event type: Heat wave

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

  • Iceland

Duration: 8 days

Time span: October 17 2023 to October 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 5.8 °C
  • Maximum temperature anomaly: 7.9 °C
  • Maximum temperature: 11.9 °C

Event center: 67.5°N 338.0°E

Area affected: 486187 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_2023-Oct-17_to_2023-Oct-24_338.0_67.5

Cold spell occuring from August 01 2023 to August 07 2023 at 71.0°N 350.0°E

Download data: JSON

Event type: Cold spell

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

  • Iceland

Duration: 7 days

Time span: August 01 2023 to August 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 4.7 °C
  • Minimum temperature anomaly: -3.9 °C
  • Minimum temperature: 1.3 °C

Event center: 71.0°N 350.0°E

Area affected: 275634 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_2023-Aug-01_to_2023-Aug-07_350.0_71.0

Cold spell occuring from July 11 2023 to July 30 2023 at 68.0°N 344.0°E

Download data: JSON

Event type: Cold spell

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

  • Iceland

Duration: 20 days

Time span: July 11 2023 to July 30 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 4.6 °C
  • Minimum temperature anomaly: -6.7 °C
  • Minimum temperature: -1.5 °C

Event center: 68.0°N 344.0°E

Area affected: 314945 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_2023-Jul-11_to_2023-Jul-30_344.0_68.0

Heat wave occuring from July 08 2023 to July 11 2023 at 64.0°N 339.5°E

Download data: JSON

Event type: Heat wave

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

  • Iceland

Duration: 4 days

Time span: July 08 2023 to July 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 12.4 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 17.5 °C

Event center: 64.0°N 339.5°E

Area affected: 51994 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_2023-Jul-08_to_2023-Jul-11_339.5_64.0

Cold spell occuring from June 29 2023 to July 07 2023 at 66.0°N 337.5°E

Download data: JSON

Event type: Cold spell

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

  • Iceland

Duration: 9 days

Time span: June 29 2023 to July 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 3.6 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: -3.6 °C

Event center: 66.0°N 337.5°E

Area affected: 99475 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_2023-Jun-29_to_2023-Jul-07_337.5_66.0

Heat wave occuring from May 16 2023 to May 21 2023 at 66.0°N 332.5°E

Download data: JSON

Event type: Heat wave

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

  • Iceland

Duration: 6 days

Time span: May 16 2023 to May 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 6.5 °C
  • Maximum temperature anomaly: 3.9 °C
  • Maximum temperature: 8.4 °C

Event center: 66.0°N 332.5°E

Area affected: 129981 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_2023-May-16_to_2023-May-21_332.5_66.0

Cold spell occuring from April 22 2023 to May 06 2023 at 62.5°N 13.5°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Iceland
  • Norway
  • Sweden
  • United Kingdom

Duration: 15 days

Time span: April 22 2023 to May 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 0.4 °C
  • Minimum temperature anomaly: -8.4 °C
  • Minimum temperature: -10.6 °C

Event center: 62.5°N 13.5°E

Area affected: 1985165 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_2023-Apr-22_to_2023-May-06_13.5_62.5

Heat wave occuring from April 07 2023 to April 22 2023 at 64.5°N 359.5°E

Download data: JSON

Event type: Heat wave

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

  • Finland
  • Greenland
  • Iceland
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Sweden

Duration: 16 days

Time span: April 07 2023 to April 22 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.1 °C
  • Mean temperature: -5.9 °C
  • Maximum temperature anomaly: 14.9 °C
  • Maximum temperature: 9.1 °C

Event center: 64.5°N 359.5°E

Area affected: 4517853 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_2023-Apr-07_to_2023-Apr-22_359.5_64.5