Cold spell occuring from January 20 2021 to January 25 2021 at 70.5°N 20.5°E

Download data: JSON

Event type: Cold spell

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

  • Norway

Duration: 6 days

Time span: January 20 2021 to January 25 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: -3.7 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: -12.7 °C

Event center: 70.5°N 20.5°E

Area affected: 118193 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-Jan-20_to_2021-Jan-25_20.5_70.5

Cold spell occuring from January 10 2021 to January 19 2021 at 63.5°N 10.0°E

Download data: JSON

Event type: Cold spell

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

  • Denmark
  • Norway
  • Sweden

Duration: 10 days

Time span: January 10 2021 to January 19 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -9.2 °C
  • Minimum temperature anomaly: -19.4 °C
  • Minimum temperature: -23.4 °C

Event center: 63.5°N 10.0°E

Area affected: 196601 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-Jan-10_to_2021-Jan-19_10.0_63.5

Cold spell occuring from January 02 2021 to January 10 2021 at 61.5°N 7.0°E

Download data: JSON

Event type: Cold spell

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

  • Norway
  • Sweden

Duration: 9 days

Time span: January 02 2021 to January 10 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -9.9 °C
  • Mean temperature: -15.1 °C
  • Minimum temperature anomaly: -16.7 °C
  • Minimum temperature: -24.2 °C

Event center: 61.5°N 7.0°E

Area affected: 145397 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-Jan-02_to_2021-Jan-10_7.0_61.5

Heat wave occuring from December 14 2020 to February 18 2021 at 74.5°N 275.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Greenland
  • Latvia
  • Lithuania
  • Norway
  • Poland
  • Russian Federation
  • Svalbard and Jan Mayen
  • Sweden
  • United Kingdom
  • United States

Duration: 67 days

Time span: December 14 2020 to February 18 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 11.6 °C
  • Mean temperature: -9.6 °C
  • Maximum temperature anomaly: 30.8 °C
  • Maximum temperature: 20.2 °C

Event center: 74.5°N 275.5°E

Area affected: 27193366 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_2020-Dec-14_to_2021-Feb-18_275.5_74.5

Heat wave occuring from December 11 2020 to March 16 2021 at -13.5°S 16.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Angola
  • Australia
  • Austria
  • Belarus
  • Belgium
  • Benin
  • Bosnia and Herzegovina
  • Burkina Faso
  • Cameroon
  • Canada
  • Central African Republic
  • Congo
  • Congo, The Democratic Republic of the
  • Croatia
  • Czechia
  • Côte d’Ivoire
  • Denmark
  • Equatorial Guinea
  • Estonia
  • Eswatini
  • Finland
  • France
  • Gabon
  • Germany
  • Ghana
  • Greenland
  • Guinea
  • Guinea-Bissau
  • Hungary
  • Iceland
  • Italy
  • Latvia
  • Liberia
  • Lithuania
  • Luxembourg
  • Madagascar
  • Malawi
  • Mali
  • Mauritania
  • Montenegro
  • Mozambique
  • Namibia
  • Netherlands
  • Nigeria
  • Norway
  • Poland
  • Portugal
  • Russian Federation
  • Réunion
  • Senegal
  • Sierra Leone
  • Slovakia
  • Slovenia
  • South Africa
  • South Sudan
  • Spain
  • Svalbard and Jan Mayen
  • Sweden
  • Switzerland
  • Tanzania, United Republic of
  • Togo
  • Tunisia
  • Ukraine
  • United Kingdom
  • Zambia
  • Zimbabwe

Duration: 96 days

Time span: December 11 2020 to March 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 6.6 °C
  • Mean temperature: 6.9 °C
  • Maximum temperature anomaly: 23.6 °C
  • Maximum temperature: 39.6 °C

Event center: -13.5°S 16.0°E

Area affected: 45189614 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_2020-Dec-11_to_2021-Mar-16_16.0_-13.5

Cold spell occuring from July 18 2020 to July 27 2020 at 71.5°N 345.0°E

Download data: JSON

Event type: Cold spell

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

  • Belarus
  • Estonia
  • Finland
  • Latvia
  • Lithuania
  • Norway
  • Russian Federation
  • Sweden

Duration: 10 days

Time span: July 18 2020 to July 27 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 12.0 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: 2.6 °C

Event center: 60.0°N 7.0°E

Area affected: 1657326 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_2020-Jul-18_to_2020-Jul-27_345.0_71.5

Heat wave occuring from July 16 2020 to July 21 2020 at 72.0°N 12.0°E

Download data: JSON

Event type: Heat wave

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

  • Norway

Duration: 6 days

Time span: July 16 2020 to July 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 10.9 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 13.7 °C

Event center: 72.0°N 12.0°E

Area affected: 282299 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_2020-Jul-16_to_2020-Jul-21_12.0_72.0

Cold spell occuring from July 01 2020 to July 14 2020 at 60.0°N 7.0°E

Download data: JSON

Event type: Cold spell

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

  • Denmark
  • Norway
  • Sweden

Duration: 14 days

Time span: July 01 2020 to July 14 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: 8.9 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: -0.4 °C

Event center: 60.0°N 7.0°E

Area affected: 422367 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_2020-Jul-01_to_2020-Jul-14_7.0_60.0

Cold spell occuring from June 28 2020 to July 03 2020 at 67.5°N 20.0°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Sweden

Duration: 6 days

Time span: June 28 2020 to July 03 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 4.9 °C
  • Minimum temperature anomaly: -9.4 °C
  • Minimum temperature: 1.3 °C

Event center: 67.5°N 20.0°E

Area affected: 61750 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_2020-Jun-28_to_2020-Jul-03_20.0_67.5

Heat wave occuring from June 05 2020 to June 08 2020 at 72.5°N 27.0°E

Download data: JSON

Event type: Heat wave

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

  • Norway

Duration: 4 days

Time span: June 05 2020 to June 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 8.0 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 11.4 °C

Event center: 72.5°N 27.0°E

Area affected: 63491 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_2020-Jun-05_to_2020-Jun-08_27.0_72.5