Cold spell occuring from April 20 2025 to April 29 2025 at 75.0°N 21.0°E

Download data: JSON

Event type: Cold spell

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

  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen

Duration: 10 days

Time span: April 20 2025 to April 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: -6.5 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: -16.4 °C

Event center: 75.0°N 21.0°E

Area affected: 348423 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-Apr-20_to_2025-Apr-29_21.0_75.0

Cold spell occuring from April 18 2025 to April 20 2025 at 49.5°N 85.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Kazakhstan
  • Russian Federation

Duration: 3 days

Time span: April 18 2025 to April 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -4.0 °C
  • Minimum temperature anomaly: -11.6 °C
  • Minimum temperature: -15.8 °C

Event center: 49.5°N 85.5°E

Area affected: 80708 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-Apr-18_to_2025-Apr-20_85.5_49.5

Cold spell occuring from April 06 2025 to April 18 2025 at 39.5°N 37.5°E

Download data: JSON

Event type: Cold spell

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

  • Albania
  • Belarus
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Estonia
  • Georgia
  • Greece
  • Hungary
  • Iran, Islamic Republic of
  • Iraq
  • Italy
  • Jordan
  • Kazakhstan
  • Kuwait
  • Latvia
  • Lebanon
  • Lithuania
  • Moldova, Republic of
  • Montenegro
  • North Macedonia
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Syrian Arab Republic
  • Türkiye
  • Ukraine

Duration: 13 days

Time span: April 06 2025 to April 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: 3.6 °C
  • Minimum temperature anomaly: -14.9 °C
  • Minimum temperature: -9.7 °C

Event center: 39.5°N 37.5°E

Area affected: 4258242 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-Apr-06_to_2025-Apr-18_37.5_39.5

Cold spell occuring from March 28 2025 to March 30 2025 at 51.0°N 122.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Russian Federation

Duration: 3 days

Time span: March 28 2025 to March 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -12.3 °C
  • Minimum temperature anomaly: -12.5 °C
  • Minimum temperature: -18.9 °C

Event center: 51.0°N 122.5°E

Area affected: 50700 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-28_to_2025-Mar-30_122.5_51.0

Cold spell occuring from March 27 2025 to March 29 2025 at 55.5°N 121.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 3 days

Time span: March 27 2025 to March 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -8.0 °C
  • Mean temperature: -17.6 °C
  • Minimum temperature anomaly: -10.3 °C
  • Minimum temperature: -20.9 °C

Event center: 55.5°N 121.5°E

Area affected: 70423 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-27_to_2025-Mar-29_121.5_55.5

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

Cold spell occuring from March 18 2025 to March 28 2025 at 60.0°N 191.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation
  • United States

Duration: 11 days

Time span: March 18 2025 to March 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -9.0 °C
  • Mean temperature: -21.9 °C
  • Minimum temperature anomaly: -14.6 °C
  • Minimum temperature: -33.7 °C

Event center: 60.0°N 191.5°E

Area affected: 731065 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-18_to_2025-Mar-28_191.5_60.0

Cold spell occuring from March 09 2025 to March 11 2025 at 64.0°N 73.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 3 days

Time span: March 09 2025 to March 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -13.1 °C
  • Mean temperature: -25.8 °C
  • Minimum temperature anomaly: -16.4 °C
  • Minimum temperature: -29.7 °C

Event center: 64.0°N 73.0°E

Area affected: 67598 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-09_to_2025-Mar-11_73.0_64.0

Cold spell occuring from March 07 2025 to March 22 2025 at 57.5°N 155.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 16 days

Time span: March 07 2025 to March 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.3 °C
  • Mean temperature: -15.5 °C
  • Minimum temperature anomaly: -13.8 °C
  • Minimum temperature: -28.8 °C

Event center: 57.5°N 155.0°E

Area affected: 546645 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-07_to_2025-Mar-22_155.0_57.5

Cold spell occuring from March 02 2025 to March 18 2025 at 64.5°N 142.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 17 days

Time span: March 02 2025 to March 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -30.3 °C
  • Minimum temperature anomaly: -12.4 °C
  • Minimum temperature: -40.3 °C

Event center: 64.5°N 142.0°E

Area affected: 586310 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-02_to_2025-Mar-18_142.0_64.5