Category: Cold spells affecting Mongolia

Cold spell occuring from February 18 2026 to March 25 2026 at 63.5°N 68.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Kazakhstan
  • Mongolia
  • Russian Federation

Duration: 36 days

Time span: February 18 2026 to March 25 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -13.2 °C
  • Mean temperature: -28.3 °C
  • Minimum temperature anomaly: -26.3 °C
  • Minimum temperature: -49.6 °C

Event center: 63.5°N 68.0°E

Area affected: 11147591 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-18_to_2026-Mar-25_68.0_63.5

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 November 30 2025 to December 03 2025 at 49.0°N 105.0°E

Download data: JSON

Event type: Cold spell

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

  • Mongolia
  • Russian Federation

Duration: 4 days

Time span: November 30 2025 to December 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -10.4 °C
  • Mean temperature: -26.3 °C
  • Minimum temperature anomaly: -16.8 °C
  • Minimum temperature: -34.2 °C

Event center: 49.0°N 105.0°E

Area affected: 108825 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-Nov-30_to_2025-Dec-03_105.0_49.0

Cold spell occuring from November 30 2025 to December 03 2025 at 49.0°N 119.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia

Duration: 4 days

Time span: November 30 2025 to December 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -9.3 °C
  • Mean temperature: -26.9 °C
  • Minimum temperature anomaly: -12.5 °C
  • Minimum temperature: -30.6 °C

Event center: 49.0°N 119.5°E

Area affected: 61582 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-Nov-30_to_2025-Dec-03_119.5_49.0

Cold spell occuring from November 15 2025 to November 19 2025 at 42.5°N 100.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia

Duration: 5 days

Time span: November 15 2025 to November 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.2 °C
  • Mean temperature: -8.5 °C
  • Minimum temperature anomaly: -12.3 °C
  • Minimum temperature: -22.6 °C

Event center: 42.5°N 100.5°E

Area affected: 444382 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-Nov-15_to_2025-Nov-19_100.5_42.5

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 August 11 2025 to August 13 2025 at 48.5°N 113.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia
  • Russian Federation

Duration: 3 days

Time span: August 11 2025 to August 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: 12.3 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: 7.2 °C

Event center: 48.5°N 113.0°E

Area affected: 129541 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-Aug-11_to_2025-Aug-13_113.0_48.5

Cold spell occuring from July 15 2025 to July 27 2025 at 63.0°N 62.0°E

Download data: JSON

Event type: Cold spell

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

  • Mongolia
  • Russian Federation

Duration: 13 days

Time span: July 15 2025 to July 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.0 °C
  • Mean temperature: 10.4 °C
  • Minimum temperature anomaly: -11.6 °C
  • Minimum temperature: 1.5 °C

Event center: 63.0°N 62.0°E

Area affected: 3431784 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-Jul-15_to_2025-Jul-27_62.0_63.0

Cold spell occuring from June 16 2025 to June 20 2025 at 51.0°N 119.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia
  • Russian Federation

Duration: 5 days

Time span: June 16 2025 to June 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.4 °C
  • Mean temperature: 12.5 °C
  • Minimum temperature anomaly: -8.3 °C
  • Minimum temperature: 8.8 °C

Event center: 51.0°N 119.0°E

Area affected: 101453 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-Jun-16_to_2025-Jun-20_119.0_51.0

Cold spell occuring from May 23 2025 to June 01 2025 at 51.0°N 87.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Kazakhstan
  • Mongolia
  • Russian Federation

Duration: 10 days

Time span: May 23 2025 to June 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.8 °C
  • Mean temperature: 1.9 °C
  • Minimum temperature anomaly: -14.0 °C
  • Minimum temperature: -9.5 °C

Event center: 51.0°N 87.0°E

Area affected: 2793049 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-May-23_to_2025-Jun-01_87.0_51.0