Category: Extremes affecting Mongolia

Cold spell occuring from March 25 2025 to April 09 2025 at 19.0°N 114.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Hong Kong
  • Kazakhstan
  • Kyrgyzstan
  • Lao People’s Democratic Republic
  • Mongolia
  • Russian Federation
  • Taiwan, Province of China
  • Tajikistan
  • Thailand
  • Viet Nam

Duration: 16 days

Time span: March 25 2025 to April 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.8 °C
  • Mean temperature: 6.8 °C
  • Minimum temperature anomaly: -14.5 °C
  • Minimum temperature: -25.8 °C

Event center: 19.0°N 114.0°E

Area affected: 6372090 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-25_to_2025-Apr-09_114.0_19.0

Heat wave occuring from March 20 2025 to March 24 2025 at 45.0°N 91.5°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Mongolia

Duration: 5 days

Time span: March 20 2025 to March 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 8.0 °C
  • Mean temperature: 9.1 °C
  • Maximum temperature anomaly: 11.5 °C
  • Maximum temperature: 18.2 °C

Event center: 45.0°N 91.5°E

Area affected: 85882 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_2025-Mar-20_to_2025-Mar-24_91.5_45.0

Heat wave occuring from March 08 2025 to March 10 2025 at 40.0°N 101.5°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Mongolia

Duration: 3 days

Time span: March 08 2025 to March 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: 8.8 °C
  • Maximum temperature anomaly: 7.7 °C
  • Maximum temperature: 10.7 °C

Event center: 40.0°N 101.5°E

Area affected: 63158 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_2025-Mar-08_to_2025-Mar-10_101.5_40.0

Heat wave occuring from March 08 2025 to March 14 2025 at 42.0°N 141.5°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
  • Mongolia
  • Russian Federation

Duration: 7 days

Time span: March 08 2025 to March 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 7.3 °C
  • Mean temperature: 3.7 °C
  • Maximum temperature anomaly: 15.9 °C
  • Maximum temperature: 15.1 °C

Event center: 42.0°N 141.5°E

Area affected: 3063166 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_2025-Mar-08_to_2025-Mar-14_141.5_42.0

Cold spell occuring from January 26 2025 to February 04 2025 at 48.0°N 112.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia
  • Russian Federation

Duration: 10 days

Time span: January 26 2025 to February 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.5 °C
  • Mean temperature: -28.5 °C
  • Minimum temperature anomaly: -12.8 °C
  • Minimum temperature: -33.4 °C

Event center: 48.0°N 112.5°E

Area affected: 366968 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-26_to_2025-Feb-04_112.5_48.0

Heat wave occuring from January 10 2025 to January 13 2025 at 42.0°N 102.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Mongolia

Duration: 4 days

Time span: January 10 2025 to January 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.6 °C
  • Mean temperature: -4.7 °C
  • Maximum temperature anomaly: 7.9 °C
  • Maximum temperature: -2.6 °C

Event center: 42.0°N 102.0°E

Area affected: 90404 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_2025-Jan-10_to_2025-Jan-13_102.0_42.0

Heat wave occuring from December 26 2024 to January 07 2025 at 49.0°N 113.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Mongolia
  • Russian Federation

Duration: 13 days

Time span: December 26 2024 to January 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 8.5 °C
  • Mean temperature: -13.0 °C
  • Maximum temperature anomaly: 13.7 °C
  • Maximum temperature: -6.1 °C

Event center: 49.0°N 113.0°E

Area affected: 590313 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_2024-Dec-26_to_2025-Jan-07_113.0_49.0

Cold spell occuring from December 18 2024 to December 27 2024 at 47.0°N 94.5°E

Download data: JSON

Event type: Cold spell

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

  • Mongolia
  • Russian Federation

Duration: 10 days

Time span: December 18 2024 to December 27 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -8.4 °C
  • Mean temperature: -26.4 °C
  • Minimum temperature anomaly: -13.9 °C
  • Minimum temperature: -34.7 °C

Event center: 47.0°N 94.5°E

Area affected: 136031 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-Dec-18_to_2024-Dec-27_94.5_47.0

Cold spell occuring from December 11 2024 to December 15 2024 at 43.5°N 94.5°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: December 11 2024 to December 15 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -6.7 °C
  • Mean temperature: -16.9 °C
  • Minimum temperature anomaly: -9.6 °C
  • Minimum temperature: -24.0 °C

Event center: 43.5°N 94.5°E

Area affected: 60733 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-Dec-11_to_2024-Dec-15_94.5_43.5

Heat wave occuring from November 24 2024 to December 08 2024 at 51.5°N 84.5°E

Download data: JSON

Event type: Heat wave

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

  • Kazakhstan
  • Mongolia
  • Russian Federation

Duration: 15 days

Time span: November 24 2024 to December 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 8.4 °C
  • Mean temperature: -3.8 °C
  • Maximum temperature anomaly: 12.5 °C
  • Maximum temperature: 5.4 °C

Event center: 51.5°N 84.5°E

Area affected: 696993 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_2024-Nov-24_to_2024-Dec-08_84.5_51.5