Category: Extremes affecting Japan

Cold spell occuring from October 15 2021 to October 25 2021 at 28.0°N 116.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Hong Kong
  • Japan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Lao People’s Democratic Republic
  • Thailand
  • Viet Nam

Duration: 11 days

Time span: October 15 2021 to October 25 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 14.7 °C
  • Minimum temperature anomaly: -9.1 °C
  • Minimum temperature: -0.8 °C

Event center: 28.0°N 116.5°E

Area affected: 4217639 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-Oct-15_to_2021-Oct-25_116.5_28.0

Cold spell occuring from October 04 2021 to December 16 2021 at 58.5°N 202.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • China
  • Greenland
  • Japan
  • Russian Federation
  • United States

Duration: 74 days

Time span: October 04 2021 to December 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.7 °C
  • Mean temperature: -20.2 °C
  • Minimum temperature anomaly: -26.2 °C
  • Minimum temperature: -49.4 °C

Event center: 58.5°N 202.5°E

Area affected: 18095107 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-Oct-04_to_2021-Dec-16_202.5_58.5

Cold spell occuring from September 01 2021 to September 09 2021 at 35.5°N 139.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 9 days

Time span: September 01 2021 to September 09 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 18.7 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: 13.3 °C

Event center: 35.5°N 139.5°E

Area affected: 144922 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-Sep-01_to_2021-Sep-09_139.5_35.5

Heat wave occuring from August 24 2021 to September 01 2021 at 34.0°N 136.0°E

Download data: JSON

Event type: Heat wave

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

  • Japan

Duration: 9 days

Time span: August 24 2021 to September 01 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 30.5 °C

Event center: 34.0°N 136.0°E

Area affected: 313060 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-Aug-24_to_2021-Sep-01_136.0_34.0

Cold spell occuring from August 09 2021 to August 16 2021 at 43.5°N 143.0°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 8 days

Time span: August 09 2021 to August 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: 14.7 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 9.5 °C

Event center: 43.5°N 143.0°E

Area affected: 76264 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-09_to_2021-Aug-16_143.0_43.5

Cold spell occuring from August 09 2021 to August 21 2021 at 31.5°N 130.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 13 days

Time span: August 09 2021 to August 21 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 24.0 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: 14.3 °C

Event center: 31.5°N 130.5°E

Area affected: 797636 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-09_to_2021-Aug-21_130.5_31.5

Heat wave occuring from June 04 2021 to September 27 2021 at 76.0°N 151.5°E

Download data: JSON

Event type: Heat wave

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

  • Azerbaijan
  • China
  • Finland
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Northern Mariana Islands
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Turkmenistan
  • Ukraine
  • United States
  • Uzbekistan

Duration: 116 days

Time span: June 04 2021 to September 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 19.1 °C
  • Maximum temperature anomaly: 19.5 °C
  • Maximum temperature: 34.2 °C

Event center: 76.0°N 151.5°E

Area affected: 39762494 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-04_to_2021-Sep-27_151.5_76.0

Heat wave occuring from May 04 2021 to May 10 2021 at 40.0°N 145.5°E

Download data: JSON

Event type: Heat wave

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

  • Japan

Duration: 7 days

Time span: May 04 2021 to May 10 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 16.4 °C
  • Maximum temperature anomaly: 7.2 °C
  • Maximum temperature: 20.0 °C

Event center: 40.0°N 145.5°E

Area affected: 274064 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-May-04_to_2021-May-10_145.5_40.0

Heat wave occuring from May 03 2021 to June 20 2021 at 17.5°N 121.5°E

Download data: JSON

Event type: Heat wave

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

  • Bangladesh
  • Bhutan
  • Cambodia
  • China
  • Hong Kong
  • India
  • Japan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Lao People’s Democratic Republic
  • Myanmar
  • Nepal
  • Philippines
  • Russian Federation
  • Taiwan, Province of China
  • Thailand
  • Viet Nam

Duration: 49 days

Time span: May 03 2021 to June 20 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 25.5 °C
  • Maximum temperature anomaly: 9.3 °C
  • Maximum temperature: 37.0 °C

Event center: 17.5°N 121.5°E

Area affected: 16735482 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-May-03_to_2021-Jun-20_121.5_17.5

Heat wave occuring from April 19 2021 to April 30 2021 at 33.0°N 123.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Japan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of

Duration: 12 days

Time span: April 19 2021 to April 30 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 16.7 °C
  • Maximum temperature anomaly: 8.2 °C
  • Maximum temperature: 22.2 °C

Event center: 33.0°N 123.0°E

Area affected: 484123 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-19_to_2021-Apr-30_123.0_33.0