Category: Extremes affecting Japan

Heat wave occuring from April 10 2021 to April 13 2021 at 45.0°N 143.0°E

Download data: JSON

Event type: Heat wave

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

  • Japan
  • Russian Federation

Duration: 4 days

Time span: April 10 2021 to April 13 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 3.7 °C
  • Maximum temperature anomaly: 9.1 °C
  • Maximum temperature: 10.8 °C

Event center: 45.0°N 143.0°E

Area affected: 401583 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-Apr-10_to_2021-Apr-13_143.0_45.0

Heat wave occuring from March 28 2021 to November 10 2022 at 1.0°N 350.0°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Albania
  • Algeria
  • Andorra
  • Angola
  • Argentina
  • Armenia
  • Australia
  • Austria
  • Azerbaijan
  • Bahrain
  • Bangladesh
  • Belarus
  • Belgium
  • Benin
  • Bhutan
  • Bolivia, Plurinational State of
  • Bonaire, Sint Eustatius and Saba
  • Bosnia and Herzegovina
  • Botswana
  • Brazil
  • Brunei Darussalam
  • Bulgaria
  • Burkina Faso
  • Burundi
  • Cabo Verde
  • Cambodia
  • Cameroon
  • Canada
  • Central African Republic
  • Chad
  • Chile
  • China
  • Christmas Island
  • Colombia
  • Congo
  • Congo, The Democratic Republic of the
  • Cook Islands
  • Croatia
  • Cyprus
  • Czechia
  • Côte d’Ivoire
  • Denmark
  • Djibouti
  • Dominican Republic
  • Ecuador
  • Egypt
  • Equatorial Guinea
  • Eritrea
  • Estonia
  • Eswatini
  • Ethiopia
  • Fiji
  • Finland
  • France
  • French Guiana
  • French Polynesia
  • French Southern Territories
  • Gabon
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Greece
  • Greenland
  • Guinea
  • Guinea-Bissau
  • Guyana
  • Haiti
  • Hong Kong
  • Hungary
  • Iceland
  • India
  • Indonesia
  • Iran, Islamic Republic of
  • Iraq
  • Ireland
  • Israel
  • Italy
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Kuwait
  • Kyrgyzstan
  • Lao People’s Democratic Republic
  • Latvia
  • Lebanon
  • Lesotho
  • Liberia
  • Libya
  • Lithuania
  • Luxembourg
  • Madagascar
  • Malawi
  • Malaysia
  • Maldives
  • Mali
  • Martinique
  • Mauritania
  • Mauritius
  • Mexico
  • Moldova, Republic of
  • Mongolia
  • Montenegro
  • Morocco
  • Mozambique
  • Myanmar
  • Namibia
  • Nepal
  • Netherlands
  • New Caledonia
  • New Zealand
  • Niger
  • Nigeria
  • Norfolk Island
  • North Macedonia
  • Northern Mariana Islands
  • Norway
  • Oman
  • Pakistan
  • Palau
  • Papua New Guinea
  • Paraguay
  • Peru
  • Philippines
  • Poland
  • Portugal
  • Puerto Rico
  • Qatar
  • Romania
  • Russian Federation
  • Rwanda
  • Saint Lucia
  • Samoa
  • Saudi Arabia
  • Senegal
  • Serbia
  • Seychelles
  • Sierra Leone
  • Sint Maarten (Dutch part)
  • Slovakia
  • Slovenia
  • Solomon Islands
  • Somalia
  • South Africa
  • South Sudan
  • Spain
  • Sri Lanka
  • Sudan
  • Suriname
  • Svalbard and Jan Mayen
  • Sweden
  • Switzerland
  • Syrian Arab Republic
  • Taiwan, Province of China
  • Tajikistan
  • Tanzania, United Republic of
  • Thailand
  • Timor-Leste
  • Togo
  • Tonga
  • Tunisia
  • Turkmenistan
  • Türkiye
  • Uganda
  • Ukraine
  • United Arab Emirates
  • United Kingdom
  • United States
  • Uzbekistan
  • Vanuatu
  • Venezuela, Bolivarian Republic of
  • Viet Nam
  • Yemen
  • Zambia
  • Zimbabwe

Duration: 593 days

Time span: March 28 2021 to November 10 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 20.7 °C
  • Maximum temperature anomaly: 35.1 °C
  • Maximum temperature: 44.7 °C

Event center: 1.0°N 350.0°E

Area affected: 335408961 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-Mar-28_to_2022-Nov-10_350.0_1.0

Heat wave occuring from March 16 2021 to March 20 2021 at 32.0°N 130.5°E

Download data: JSON

Event type: Heat wave

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

  • Japan

Duration: 5 days

Time span: March 16 2021 to March 20 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 21.0 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 23.6 °C

Event center: 32.0°N 130.5°E

Area affected: 314539 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-Mar-16_to_2021-Mar-20_130.5_32.0

Heat wave occuring from January 14 2021 to January 16 2021 at 33.5°N 141.5°E

Download data: JSON

Event type: Heat wave

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

  • Japan

Duration: 3 days

Time span: January 14 2021 to January 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 14.2 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 17.6 °C

Event center: 33.5°N 141.5°E

Area affected: 79362 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-Jan-14_to_2021-Jan-16_141.5_33.5

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

Cold spell occuring from December 10 2020 to December 25 2020 at 33.0°N 105.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Japan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Lao People’s Democratic Republic
  • Mongolia
  • Viet Nam

Duration: 16 days

Time span: December 10 2020 to December 25 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: -6.5 °C
  • Minimum temperature anomaly: -14.3 °C
  • Minimum temperature: -35.1 °C

Event center: 33.0°N 105.0°E

Area affected: 3941799 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-10_to_2020-Dec-25_105.0_33.0

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 November 09 2020 to November 12 2020 at 34.5°N 143.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 4 days

Time span: November 09 2020 to November 12 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 10.0 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: -0.8 °C

Event center: 34.5°N 143.5°E

Area affected: 160594 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-Nov-09_to_2020-Nov-12_143.5_34.5

Cold spell occuring from July 24 2020 to July 27 2020 at 32.0°N 130.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 4 days

Time span: July 24 2020 to July 27 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 25.3 °C
  • Minimum temperature anomaly: -3.7 °C
  • Minimum temperature: 21.7 °C

Event center: 32.0°N 130.5°E

Area affected: 60244 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-24_to_2020-Jul-27_130.5_32.0

Cold spell occuring from July 11 2020 to July 21 2020 at 31.5°N 111.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Japan
  • Korea, Republic of

Duration: 11 days

Time span: July 11 2020 to July 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 22.5 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: 15.7 °C

Event center: 31.5°N 111.5°E

Area affected: 1335680 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-11_to_2020-Jul-21_111.5_31.5