Cold spell occuring from December 25 2021 to December 27 2021 at 53.5°N 13.5°E

Download data: JSON

Event type: Cold spell

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

  • Germany
  • Poland

Duration: 3 days

Time span: December 25 2021 to December 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -9.8 °C
  • Mean temperature: -9.0 °C
  • Minimum temperature anomaly: -14.8 °C
  • Minimum temperature: -14.0 °C

Event center: 53.5°N 13.5°E

Area affected: 99163 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_2021-Dec-25_to_2021-Dec-27_13.5_53.5

Heat wave occuring from December 12 2021 to December 18 2021 at 53.5°N 9.0°E

Download data: JSON

Event type: Heat wave

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

  • Germany
  • Netherlands
  • Poland
  • United Kingdom

Duration: 7 days

Time span: December 12 2021 to December 18 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 8.8 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 12.0 °C

Event center: 53.5°N 9.0°E

Area affected: 234269 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_2021-Dec-12_to_2021-Dec-18_9.0_53.5

Heat wave occuring from November 18 2021 to November 20 2021 at 57.5°N 1.0°E

Download data: JSON

Event type: Heat wave

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

  • Denmark
  • Germany
  • Netherlands
  • Norway
  • Sweden

Duration: 3 days

Time span: November 18 2021 to November 20 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.1 °C
  • Mean temperature: 11.0 °C
  • Maximum temperature anomaly: 8.1 °C
  • Maximum temperature: 12.8 °C

Event center: 57.5°N 1.0°E

Area affected: 335290 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_2021-Nov-18_to_2021-Nov-20_1.0_57.5

Cold spell occuring from November 08 2021 to November 12 2021 at 48.5°N 4.0°E

Download data: JSON

Event type: Cold spell

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

  • France
  • Germany
  • Luxembourg

Duration: 5 days

Time span: November 08 2021 to November 12 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 2.8 °C
  • Minimum temperature anomaly: -6.5 °C
  • Minimum temperature: 0.7 °C

Event center: 48.5°N 4.0°E

Area affected: 128232 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_2021-Nov-08_to_2021-Nov-12_4.0_48.5

Cold spell occuring from November 03 2021 to November 09 2021 at 46.5°N 11.0°E

Download data: JSON

Event type: Cold spell

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

  • Austria
  • France
  • Germany
  • Italy
  • Switzerland

Duration: 7 days

Time span: November 03 2021 to November 09 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.0 °C
  • Mean temperature: -5.2 °C
  • Minimum temperature anomaly: -12.8 °C
  • Minimum temperature: -15.8 °C

Event center: 46.5°N 11.0°E

Area affected: 70774 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_2021-Nov-03_to_2021-Nov-09_11.0_46.5

Cold spell occuring from August 24 2021 to August 30 2021 at 47.5°N 15.0°E

Download data: JSON

Event type: Cold spell

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

  • Austria
  • Belarus
  • Bosnia and Herzegovina
  • Croatia
  • Czechia
  • Germany
  • Hungary
  • Italy
  • Poland
  • Romania
  • Serbia
  • Slovakia
  • Slovenia

Duration: 7 days

Time span: August 24 2021 to August 30 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 13.5 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: 2.4 °C

Event center: 47.5°N 15.0°E

Area affected: 520155 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_2021-Aug-24_to_2021-Aug-30_15.0_47.5

Cold spell occuring from July 18 2021 to August 27 2021 at 37.0°N 351.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Andorra
  • Austria
  • Belgium
  • Czechia
  • France
  • Germany
  • Italy
  • Luxembourg
  • Mali
  • Mauritania
  • Morocco
  • Netherlands
  • Portugal
  • Spain
  • Switzerland

Duration: 41 days

Time span: July 18 2021 to August 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 21.6 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: 10.0 °C

Event center: 37.0°N 351.0°E

Area affected: 2492586 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_2021-Jul-18_to_2021-Aug-27_351.0_37.0

Heat wave occuring from June 23 2021 to October 12 2021 at 72.0°N 339.0°E

Download data: JSON

Event type: Heat wave

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

  • Albania
  • Algeria
  • Andorra
  • Bahamas
  • Belgium
  • Burkina Faso
  • Canada
  • Czechia
  • Denmark
  • Egypt
  • Finland
  • France
  • Germany
  • Greece
  • Greenland
  • Iceland
  • Ireland
  • Italy
  • Libya
  • Mali
  • Mauritania
  • Morocco
  • Netherlands
  • Niger
  • Norway
  • Poland
  • Portugal
  • Russian Federation
  • Spain
  • Svalbard and Jan Mayen
  • Sweden
  • Tunisia
  • Türkiye
  • United Kingdom
  • United States

Duration: 112 days

Time span: June 23 2021 to October 12 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 12.4 °C
  • Maximum temperature anomaly: 10.1 °C
  • Maximum temperature: 41.9 °C

Event center: 30.0°N 0.0°E

Area affected: 35897257 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_2021-Jun-23_to_2021-Oct-12_339.0_72.0

Cold spell occuring from May 21 2021 to May 27 2021 at 50.5°N 354.0°E

Download data: JSON

Event type: Cold spell

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

  • Belgium
  • Czechia
  • France
  • Germany
  • Ireland
  • Luxembourg
  • Netherlands
  • United Kingdom

Duration: 7 days

Time span: May 21 2021 to May 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 9.5 °C
  • Minimum temperature anomaly: -5.2 °C
  • Minimum temperature: 3.9 °C

Event center: 50.5°N 354.0°E

Area affected: 1541442 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_2021-May-21_to_2021-May-27_354.0_50.5

Cold spell occuring from April 30 2021 to May 03 2021 at 49.0°N 9.5°E

Download data: JSON

Event type: Cold spell

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

  • France
  • Germany
  • Switzerland

Duration: 4 days

Time span: April 30 2021 to May 03 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 6.8 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: 4.2 °C

Event center: 49.0°N 9.5°E

Area affected: 84172 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_2021-Apr-30_to_2021-May-03_9.5_49.0