Category: Extremes affecting Finland

Cold spell occuring from December 19 2020 to February 09 2021 at 49.5°N 147.5°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • Albania
  • Belarus
  • Bosnia and Herzegovina
  • Bulgaria
  • Cambodia
  • China
  • Croatia
  • Czechia
  • Estonia
  • Finland
  • Greece
  • Hong Kong
  • Hungary
  • India
  • Iran, Islamic Republic of
  • Italy
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Kyrgyzstan
  • Lao People’s Democratic Republic
  • Latvia
  • Lithuania
  • Moldova, Republic of
  • Mongolia
  • Montenegro
  • Myanmar
  • North Macedonia
  • Oman
  • Pakistan
  • Poland
  • Romania
  • Russian Federation
  • Serbia
  • Slovakia
  • Slovenia
  • Sweden
  • Taiwan, Province of China
  • Tajikistan
  • Thailand
  • Turkmenistan
  • Türkiye
  • Ukraine
  • Uzbekistan
  • Viet Nam

Duration: 53 days

Time span: December 19 2020 to February 09 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -11.0 °C
  • Mean temperature: -25.7 °C
  • Minimum temperature anomaly: -28.3 °C
  • Minimum temperature: -60.6 °C

Event center: 49.5°N 147.5°E

Area affected: 40138019 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-Dec-19_to_2021-Feb-09_147.5_49.5

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

Heat wave occuring from November 21 2020 to November 26 2020 at 59.0°N 22.0°E

Download data: JSON

Event type: Heat wave

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

  • Denmark
  • Estonia
  • Finland
  • Latvia
  • Lithuania
  • Sweden

Duration: 6 days

Time span: November 21 2020 to November 26 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 8.7 °C
  • Maximum temperature anomaly: 6.5 °C
  • Maximum temperature: 10.0 °C

Event center: 59.0°N 22.0°E

Area affected: 168594 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-Nov-21_to_2020-Nov-26_22.0_59.0

Heat wave occuring from November 17 2020 to April 19 2021 at 16.5°N 134.5°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Albania
  • Algeria
  • Andorra
  • Armenia
  • Aruba
  • Austria
  • Azerbaijan
  • Bahamas
  • Bahrain
  • Bangladesh
  • Belarus
  • Belize
  • Bhutan
  • Bonaire, Sint Eustatius and Saba
  • Bosnia and Herzegovina
  • Bulgaria
  • Cambodia
  • Cameroon
  • Canada
  • Central African Republic
  • Chad
  • China
  • Colombia
  • Costa Rica
  • Croatia
  • Cuba
  • Cyprus
  • Czechia
  • Denmark
  • Djibouti
  • Dominican Republic
  • Egypt
  • El Salvador
  • Eritrea
  • Estonia
  • Ethiopia
  • Finland
  • France
  • Georgia
  • Germany
  • Greece
  • Greenland
  • Guatemala
  • Haiti
  • Honduras
  • Hong Kong
  • Hungary
  • India
  • Indonesia
  • Iran, Islamic Republic of
  • Iraq
  • Israel
  • Italy
  • Jamaica
  • Japan
  • Jordan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Kuwait
  • Kyrgyzstan
  • Lao People’s Democratic Republic
  • Latvia
  • Lebanon
  • Libya
  • Lithuania
  • Mali
  • Martinique
  • Mauritania
  • Mexico
  • Moldova, Republic of
  • Mongolia
  • Montenegro
  • Morocco
  • Myanmar
  • Nepal
  • Nicaragua
  • Niger
  • Nigeria
  • North Macedonia
  • Northern Mariana Islands
  • Oman
  • Pakistan
  • Palau
  • Philippines
  • Poland
  • Portugal
  • Puerto Rico
  • Qatar
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Slovenia
  • South Sudan
  • Spain
  • Sri Lanka
  • Sudan
  • Sweden
  • Switzerland
  • Syrian Arab Republic
  • Taiwan, Province of China
  • Tajikistan
  • Thailand
  • Tunisia
  • Turkmenistan
  • Turks and Caicos Islands
  • Türkiye
  • Ukraine
  • United Arab Emirates
  • United States
  • Uzbekistan
  • Viet Nam
  • Yemen

Duration: 154 days

Time span: November 17 2020 to April 19 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 16.8 °C
  • Maximum temperature anomaly: 27.4 °C
  • Maximum temperature: 37.1 °C

Event center: 16.5°N 134.5°E

Area affected: 124427445 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-Nov-17_to_2021-Apr-19_134.5_16.5

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

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 02 2020 to June 20 2020 at 66.5°N 34.5°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Armenia
  • Azerbaijan
  • Belarus
  • Finland
  • Georgia
  • Iran, Islamic Republic of
  • Kazakhstan
  • Latvia
  • Pakistan
  • Russian Federation
  • Turkmenistan
  • Türkiye
  • Ukraine
  • Uzbekistan

Duration: 19 days

Time span: June 02 2020 to June 20 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.6 °C
  • Mean temperature: 19.7 °C
  • Maximum temperature anomaly: 15.2 °C
  • Maximum temperature: 42.8 °C

Event center: 66.5°N 34.5°E

Area affected: 6255277 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-02_to_2020-Jun-20_34.5_66.5

Heat wave occuring from May 31 2020 to June 30 2020 at 65.5°N 22.5°E

Download data: JSON

Event type: Heat wave

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

  • Belarus
  • Belgium
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Latvia
  • Lithuania
  • Netherlands
  • Norway
  • Poland
  • Russian Federation
  • Sweden
  • Ukraine
  • United Kingdom

Duration: 31 days

Time span: May 31 2020 to June 30 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 17.5 °C
  • Maximum temperature anomaly: 12.1 °C
  • Maximum temperature: 26.7 °C

Event center: 65.5°N 22.5°E

Area affected: 4562585 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-May-31_to_2020-Jun-30_22.5_65.5

Cold spell occuring from May 06 2020 to June 18 2020 at 36.5°N 31.0°E

Download data: JSON

Event type: Cold spell

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

  • Albania
  • Belarus
  • Belgium
  • Bosnia and Herzegovina
  • Bulgaria
  • Chad
  • Cyprus
  • Denmark
  • Egypt
  • Estonia
  • Finland
  • France
  • Georgia
  • Germany
  • Greece
  • Hungary
  • Iraq
  • Israel
  • Italy
  • Jordan
  • Latvia
  • Lebanon
  • Libya
  • Lithuania
  • Moldova, Republic of
  • Montenegro
  • Netherlands
  • North Macedonia
  • Norway
  • Poland
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Sudan
  • Sweden
  • Syrian Arab Republic
  • Türkiye
  • Ukraine

Duration: 44 days

Time span: May 06 2020 to June 18 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 10.5 °C
  • Minimum temperature anomaly: -10.4 °C
  • Minimum temperature: -7.7 °C

Event center: 36.5°N 31.0°E

Area affected: 9237035 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-May-06_to_2020-Jun-18_31.0_36.5