Category: Cold spells affecting Japan

Cold spell occuring from February 06 2026 to February 08 2026 at 40.5°N 136.0°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 3 days

Time span: February 06 2026 to February 08 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: -1.9 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: -7.7 °C

Event center: 40.5°N 136.0°E

Area affected: 175751 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_2026-Feb-06_to_2026-Feb-08_136.0_40.5

Cold spell occuring from December 04 2025 to January 31 2026 at 58.0°N 223.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • China
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Mongolia
  • Russian Federation
  • United States

Duration: 59 days

Time span: December 04 2025 to January 31 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -11.4 °C
  • Mean temperature: -27.7 °C
  • Minimum temperature anomaly: -31.7 °C
  • Minimum temperature: -55.5 °C

Event center: 58.0°N 223.5°E

Area affected: 24818667 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_2025-Dec-04_to_2026-Jan-31_223.5_58.0

Cold spell occuring from October 19 2025 to October 25 2025 at 40.5°N 141.0°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 7 days

Time span: October 19 2025 to October 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 8.9 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 4.0 °C

Event center: 40.5°N 141.0°E

Area affected: 87422 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_2025-Oct-19_to_2025-Oct-25_141.0_40.5

Cold spell occuring from September 30 2025 to November 04 2025 at 50.0°N 100.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Hong Kong
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Lao People’s Democratic Republic
  • Mongolia
  • Russian Federation
  • United States
  • Viet Nam

Duration: 36 days

Time span: September 30 2025 to November 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.8 °C
  • Mean temperature: -1.0 °C
  • Minimum temperature anomaly: -23.4 °C
  • Minimum temperature: -32.6 °C

Event center: 50.0°N 100.0°E

Area affected: 19274293 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_2025-Sep-30_to_2025-Nov-04_100.0_50.0

Cold spell occuring from March 29 2025 to April 01 2025 at 32.5°N 130.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 4 days

Time span: March 29 2025 to April 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 9.1 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: 3.9 °C

Event center: 32.5°N 130.5°E

Area affected: 191498 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_2025-Mar-29_to_2025-Apr-01_130.5_32.5

Cold spell occuring from March 13 2025 to March 28 2025 at 30.0°N 100.5°E

Download data: JSON

Event type: Cold spell

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

  • Cambodia
  • China
  • Japan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Lao People’s Democratic Republic
  • Myanmar
  • Philippines
  • Taiwan, Province of China
  • Thailand
  • Viet Nam

Duration: 16 days

Time span: March 13 2025 to March 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 16.5 °C
  • Minimum temperature anomaly: -16.5 °C
  • Minimum temperature: -24.1 °C

Event center: 30.0°N 100.5°E

Area affected: 6868993 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_2025-Mar-13_to_2025-Mar-28_100.5_30.0

Cold spell occuring from February 17 2025 to February 25 2025 at 34.5°N 132.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan
  • Korea, Republic of

Duration: 9 days

Time span: February 17 2025 to February 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 5.2 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: -10.5 °C

Event center: 34.5°N 132.5°E

Area affected: 648548 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_2025-Feb-17_to_2025-Feb-25_132.5_34.5

Cold spell occuring from February 04 2025 to February 11 2025 at 34.5°N 133.0°E

Download data: JSON

Event type: Cold spell

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

  • Japan
  • Korea, Republic of

Duration: 8 days

Time span: February 04 2025 to February 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 3.6 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: -11.2 °C

Event center: 34.5°N 133.0°E

Area affected: 517758 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_2025-Feb-04_to_2025-Feb-11_133.0_34.5

Cold spell occuring from January 09 2025 to January 12 2025 at 32.5°N 130.5°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 4 days

Time span: January 09 2025 to January 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 11.1 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: -3.0 °C

Event center: 32.5°N 130.5°E

Area affected: 216296 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_2025-Jan-09_to_2025-Jan-12_130.5_32.5

Cold spell occuring from September 18 2024 to September 23 2024 at 47.0°N 139.0°E

Download data: JSON

Event type: Cold spell

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

  • Japan
  • Russian Federation

Duration: 6 days

Time span: September 18 2024 to September 23 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 10.9 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 1.3 °C

Event center: 47.0°N 139.0°E

Area affected: 119173 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_2024-Sep-18_to_2024-Sep-23_139.0_47.0